diff --git a/.eslintrc b/.eslintrc
new file mode 100644
index 000000000..80549706f
--- /dev/null
+++ b/.eslintrc
@@ -0,0 +1,11 @@
+{
+  "env": {
+    "node": true,
+    "es6": true
+  },
+  "extends": ["eslint:recommended", "prettier"],
+  "parser": "babel-eslint",
+  "rules": {
+    "no-console": "warn"
+  }
+}
diff --git a/arangojs.min.js b/arangojs.min.js
index b4166c54f..36ac2a055 100644
--- a/arangojs.min.js
+++ b/arangojs.min.js
@@ -1 +1 @@
-!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.arangojs=e():t.arangojs=e()}(this,function(){return function(t){function e(o){if(n[o])return n[o].exports;var r=n[o]={i:o,l:!1,exports:{}};return t[o].call(r.exports,r,r.exports,e),r.l=!0,r.exports}var n={};return e.m=t,e.c=n,e.d=function(t,n,o){e.o(t,n)||Object.defineProperty(t,n,{configurable:!1,enumerable:!0,get:o})},e.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return e.d(n,"a",n),n},e.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},e.p="",e(e.s=7)}([function(t,e,n){"use strict";var o,r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t};o=function(){return this}();try{o=o||Function("return this")()||(0,eval)("this")}catch(t){"object"===("undefined"==typeof window?"undefined":r(window))&&(o=window)}t.exports=o},function(t,e,n){"use strict";function o(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function r(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function a(t,e){return new(e.type===f.EDGE_COLLECTION?y:h)(t,e.name)}Object.defineProperty(e,"__esModule",{value:!0}),e._types=e._BaseCollection=e.DocumentCollection=e.EdgeCollection=e.types=void 0;var u=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var o in n)Object.prototype.hasOwnProperty.call(n,o)&&(t[o]=n[o])}return t},s=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}();e.default=a;var c=n(2),l=function(t){return t&&t.__esModule?t:{default:t}}(c),f=e.types={DOCUMENT_COLLECTION:2,EDGE_COLLECTION:3},p=function(){function t(e,n){i(this,t),this.name=n,this._urlPrefix="/collection/"+n+"/",this._idPrefix=n+"/",this._connection=e,this._api=this._connection.route("/_api"),this._connection.arangoMajor>=3&&(this.first=void 0,this.last=void 0,this.createCapConstraint=void 0)}return s(t,[{key:"_documentHandle",value:function(t){if("string"!=typeof t){if(t._id)return t._id;if(t._key)return this._idPrefix+t._key;throw new Error("Document handle must be a document or string")}return-1===t.indexOf("/")?this._idPrefix+t:t}},{key:"_indexHandle",value:function(t){if("string"!=typeof t){if(t.id)return t.id;throw new Error("Document handle must be a document or string")}return-1===t.indexOf("/")?this._idPrefix+t:t}},{key:"_get",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.get(this._urlPrefix+t,e,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"_put",value:function(t,e,n){var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.put(this._urlPrefix+t,e,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"get",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/collection/"+this.name,function(t,e){return t?o(t):o(null,e.body)}),n}},{key:"create",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/collection",u({},t,{name:this.name,type:this.type}),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"properties",value:function(t){return this._get("properties",t)}},{key:"count",value:function(t){return this._get("count",t)}},{key:"figures",value:function(t){return this._get("figures",t)}},{key:"revision",value:function(t){return this._get("revision",t)}},{key:"checksum",value:function(t,e){return this._get("checksum",t,e)}},{key:"load",value:function(t,e){return"function"==typeof t&&(e=t,t=void 0),this._put("load","boolean"==typeof t?{count:t}:void 0,e)}},{key:"unload",value:function(t){return this._put("unload",void 0,t)}},{key:"setProperties",value:function(t,e){return this._put("properties",t,e)}},{key:"rename",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback;return this._api.put(this._urlPrefix+"rename",{name:t},function(e,o){e?i(e):(n.name=t,n._idPrefix=t+"/",n._urlPrefix="/collection/"+t+"/",i(null,o.body))}),r}},{key:"rotate",value:function(t){return this._put("rotate",void 0,t)}},{key:"truncate",value:function(t){return this._put("truncate",void 0,t)}},{key:"drop",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.delete("/collection/"+this.name,t,function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"replace",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0),"string"==typeof n&&(n={rev:n});var r=this._connection.promisify(o),i=r.promise,a=r.callback,u=n&&n.rev,s=u&&this._connection.arangoMajor>=3?{"if-match":u}:void 0;return this._api.put(this._documentPath(t),e,n,s,function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"update",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0),"string"==typeof n&&(n={rev:n});var r=this._connection.promisify(o),i=r.promise,a=r.callback,u=n&&n.rev,s=u&&this._connection.arangoMajor>=3?{"if-match":u}:void 0;return this._api.patch(this._documentPath(t),e,n,s,function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"bulkUpdate",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof e&&(e={rev:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.patch("/document/"+this.name,t,e,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"remove",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof e&&(e={rev:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback,a=e&&e.rev,u=a&&this._connection.arangoMajor>=3?{"if-match":a}:void 0;return this._api.delete(this._documentPath(t),e,u,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"list",value:function(t,e){"function"==typeof t&&(e=t,t=void 0),t||(t="id");var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._connection.arangoMajor<3?this._api.get("/document",{type:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.documents)}):this._api.put("/simple/all-keys",{type:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.result)}),o}},{key:"all",value:function(t,e){var n=this;"function"==typeof t&&(e=t,t=void 0);var o=this._connection.promisify(e),r=o.promise,i=o.callback;return this._api.put("/simple/all",u({},t,{collection:this.name}),function(t,e){return t?i(t):i(null,new l.default(n._connection,e.body))}),r}},{key:"any",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.put("/simple/any",{collection:this.name},function(t,e){return t?o(t):o(null,e.body.document)}),n}},{key:"first",value:function(t,e){"function"==typeof t&&(e=t,t=void 0),"number"==typeof t&&(t={count:t});var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/first",u({},t,{collection:this.name}),function(t,e){return t?r(t):r(null,e.body.result)}),o}},{key:"last",value:function(t,e){"function"==typeof t&&(e=t,t=void 0),"number"==typeof t&&(t={count:t});var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/last",u({},t,{collection:this.name}),function(t,e){return t?r(t):r(null,e.body.result)}),o}},{key:"byExample",value:function(t,e,n){var o=this;"function"==typeof e&&(n=e,e=void 0);var r=this._connection.promisify(n),i=r.promise,a=r.callback;return this._api.put("/simple/by-example",u({},e,{example:t,collection:this.name}),function(t,e){return t?a(t):a(null,new l.default(o._connection,e.body))}),i}},{key:"firstExample",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/first-example",{example:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.document)}),o}},{key:"removeByExample",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.put("/simple/remove-by-example",u({},e,{example:t,collection:this.name}),function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"replaceByExample",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0);var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._api.put("/simple/replace-by-example",u({},n,{example:t,newValue:e,collection:this.name}),function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"updateByExample",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0);var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._api.put("/simple/update-by-example",u({},n,{example:t,newValue:e,collection:this.name}),function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"lookupByKeys",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/lookup-by-keys",{keys:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.documents)}),o}},{key:"removeByKeys",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.put("/simple/remove-by-keys",{options:e,keys:t,collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"import",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.request({method:"POST",path:"/import",body:t,ld:Boolean(!e||"array"!==e.type),qs:u({type:"auto"},e,{collection:this.name})},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"indexes",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/index",{collection:this.name},function(t,e){return t?o(t):o(null,e.body.indexes)}),n}},{key:"index",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/index/"+this._indexHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"createIndex",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/index",t,{collection:this.name},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"dropIndex",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.delete("/index/"+this._indexHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"createCapConstraint",value:function(t,e){"number"==typeof t&&(t={size:t});var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/index",u({},t,{type:"cap"}),{collection:this.name},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"createHashIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),"boolean"==typeof e&&(e={unique:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({unique:!1},e,{type:"hash",fields:t}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createSkipList",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),"boolean"==typeof e&&(e={unique:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({unique:!1},e,{type:"skiplist",fields:t}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createPersistentIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),"boolean"==typeof e&&(e={unique:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({unique:!1},e,{type:"persistent",fields:t}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createGeoIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({},e,{fields:t,type:"geo"}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createFulltextIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),e&&(e=Number(e));var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",{fields:t,minLength:e,type:"fulltext"},{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"fulltext",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),n||(n={}),n.index&&(n.index=this._indexHandle(n.index));var i=this._connection.promisify(o),a=i.promise,s=i.callback;return this._api.put("/simple/fulltext",u({},n,{attribute:t,query:e,collection:this.name}),function(t,e){return t?s(t):s(null,new l.default(r._connection,e.body))}),a}}]),t}();p.prototype.isArangoCollection=!0;var h=function(t){function e(){var t;i(this,e);for(var n=arguments.length,r=Array(n),a=0;a<n;a++)r[a]=arguments[a];var u=o(this,(t=e.__proto__||Object.getPrototypeOf(e)).call.apply(t,[this].concat(r)));return u.type=f.DOCUMENT_COLLECTION,u}return r(e,t),s(e,[{key:"_documentPath",value:function(t){return"/document/"+this._documentHandle(t)}},{key:"document",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get(this._documentPath(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"save",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"boolean"==typeof e&&(e={returnNew:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._connection.arangoMajor>=3?this._api.post("/document/"+this.name,t,e,function(t,e){return t?i(t):i(null,e.body)}):(e||(e={}),e.collection=this.name,this._api.post("/document",t,e,function(t,e){return t?i(t):i(null,e.body)})),r}}]),e}(p),y=function(t){function e(){var t;i(this,e);for(var n=arguments.length,r=Array(n),a=0;a<n;a++)r[a]=arguments[a];var u=o(this,(t=e.__proto__||Object.getPrototypeOf(e)).call.apply(t,[this].concat(r)));return u.type=f.EDGE_COLLECTION,u}return r(e,t),s(e,[{key:"_documentPath",value:function(t){return this._connection.arangoMajor<3?"edge/"+this._documentHandle(t):"document/"+this._documentHandle(t)}},{key:"edge",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get(this._documentPath(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"save",value:function(t,e,n,o){"function"==typeof e?(o=e,e=void 0):e&&(t._from=this._documentHandle(e),t._to=this._documentHandle(n));var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._connection.arangoMajor<3?this._api.post("/edge",t,{collection:this.name,from:t._from,to:t._to},function(t,e){return t?a(t):a(null,e.body)}):this._api.post("/document",t,{collection:this.name},function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"_edges",value:function(t,e,n){var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.get("/edges/"+this.name,{direction:e,vertex:this._documentHandle(t)},function(t,e){return t?i(t):i(null,e.body.edges)}),r}},{key:"edges",value:function(t,e){return this._edges(t,void 0,e)}},{key:"inEdges",value:function(t,e){return this._edges(t,"in",e)}},{key:"outEdges",value:function(t,e){return this._edges(t,"out",e)}},{key:"traversal",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/traversal",u({},e,{startVertex:t,edgeCollection:this.name}),function(t,e){return t?i(t):i(null,e.body.result)}),r}}]),e}(p);e.EdgeCollection=y,e.DocumentCollection=h,e._BaseCollection=p,e._types=f},function(t,e,n){"use strict";function o(t){if(Array.isArray(t)){for(var e=0,n=Array(t.length);e<t.length;e++)n[e]=t[e];return n}return Array.from(t)}function r(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(e,"__esModule",{value:!0});var i=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),a=function(){function t(e,n){r(this,t),this.extra=n.extra,this._connection=e,this._api=this._connection.route("/_api"),this._result=n.result,this._hasMore=Boolean(n.hasMore),this._id=n.id,this.count=n.count}return i(t,[{key:"_drain",value:function(t){var e=this,n=this._connection.promisify(t),o=n.promise,r=n.callback;return this._more(function(n){return n?r(n):e._hasMore?e._drain(t):r(null,e)}),o}},{key:"_more",value:function(t){var e=this;this._hasMore?this._api.put("/cursor/"+this._id,function(n,r){if(n)t(n);else{var i;(i=e._result).push.apply(i,o(r.body.result)),e._hasMore=r.body.hasMore,t(null,e)}}):t(null,this)}},{key:"all",value:function(t){var e=this,n=this._connection.promisify(t),o=n.promise,r=n.callback;return this._drain(function(t){if(t)r(t);else{var n=e._result;e._result=[],r(null,n)}}),o}},{key:"next",value:function(t){var e=this,n=this._connection.promisify(t),o=n.promise,r=n.callback,i=function(){var t=e._result.shift();r(null,t)};return this._result.length?i():this._hasMore?this._more(function(t){return t?r(t):i()}):r(null),o}},{key:"hasNext",value:function(){return Boolean(this._hasMore||this._result.length)}},{key:"each",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0;return function e(){try{for(var o=void 0;n._result.length&&(o=t(n._result.shift(),a,n),a++,!1!==o););n._hasMore&&!1!==o?n._more(function(t){return t?i(t):e()}):i(null,o)}catch(t){i(t)}}(),r}},{key:"every",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0;return function e(){try{for(var o=!0;n._result.length&&(o=t(n._result.shift(),a,n),a++,o););n._hasMore&&o?n._more(function(t){return t?i(t):e()}):i(null,Boolean(o))}catch(t){i(t)}}(),r}},{key:"some",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0;return function e(){try{for(var o=!1;n._result.length&&(o=t(n._result.shift(),a,n),a++,!o););!n._hasMore||o?i(null,Boolean(o)):n._more(function(t){return t?i(t):e()})}catch(t){i(t)}}(),r}},{key:"map",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0,u=[];return function e(){try{for(;n._result.length;)u.push(t(n._result.shift(),a,n)),a++;n._hasMore?n._more(function(t){return t?i(t):e()}):i(null,u)}catch(t){i(t)}}(),r}},{key:"reduce",value:function(t,e,n){var o=this;"function"==typeof e&&(n=e,e=void 0);var r=0,i=this._connection.promisify(n),a=i.promise,u=i.callback,s=function 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o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.delete("/foxx/service",a({},e,{mount:t}),function(t){return i(t?t:null)}),r}},{key:"getService",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/foxx/service",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"getServiceConfiguration",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"boolean"!=typeof e&&(e=!1);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.get("/foxx/configuration",{mount:t,minimal:e},function(t,n){if(t)return i(t);if(e){var o={},r=!0,a=!1,u=void 0;try{for(var s,c=Object.keys(n.body)[Symbol.iterator]();!(r=(s=c.next()).done);r=!0){var l=s.value;o[l]=n.body[l].current}}catch(t){a=!0,u=t}finally{try{!r&&c.return&&c.return()}finally{if(a)throw u}}n.body={values:o}}i(null,n.body)}),r}},{key:"updateServiceConfiguration",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 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i=this._connection.promisify(o),a=i.promise,u=i.callback;return this._api.patch("/foxx/dependencies",e,{mount:t,minimal:n},function(e,o){if(e)return u(e);var i=o.body;if(n||!i.values||!i.values.title)return u(null,i);r.getServiceDependencies(t,n,function(t,e){if(t)return u(t);if(i.warnings){var n=!0,o=!1,r=void 0;try{for(var a,s=Object.keys(e)[Symbol.iterator]();!(n=(a=s.next()).done);n=!0){var c=a.value;e.body[c].warning=i.warnings[c]}}catch(t){o=!0,r=t}finally{try{!n&&s.return&&s.return()}finally{if(o)throw r}}}u(null,e.body)})}),a}},{key:"replaceServiceDependencies",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),"boolean"!=typeof n&&(n=!1);var i=this._connection.promisify(o),a=i.promise,u=i.callback;return this._api.put("/foxx/dependencies",e,{mount:t,minimal:n},function(e,o){if(e)return u(e);var i=o.body;if(n||!i.values||!i.values.title)return u(null,i);r.getServiceDependencies(t,n,function(t,e){if(t)return u(t);if(i.warnings){var n=!0,o=!1,r=void 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r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._api.post("/foxx/scripts/"+e,n,{mount:t},function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"runServiceTests",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/foxx/tests",void 0,a({},e,{mount:t}),function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"getServiceReadme",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/foxx/readme",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"getServiceDocumentation",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/foxx/swagger",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"downloadService",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.request({method:"POST",path:"/foxx/download",qs:{mount:t},expectBinary:!0},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"commitLocalServiceState",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/foxx/commit",void 0,{replace:t},function(t,e){return r(t?t:null)}),o}}]),t}();e.default=w},function(t,e,n){"use strict";function o(t){return t&&t.__esModule?t:{default:t}}function r(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(e,"__esModule",{value:!0});var i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},a=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var o in n)Object.prototype.hasOwnProperty.call(n,o)&&(t[o]=n[o])}return 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string")}return-1===t.indexOf("/")?this._idPrefix+t:t}},{key:"_indexHandle",value:function(t){if("string"!=typeof t){if(t.id)return t.id;throw new Error("Document handle must be a document or string")}return-1===t.indexOf("/")?this._idPrefix+t:t}},{key:"_get",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.get(this._urlPrefix+t,e,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"_put",value:function(t,e,n){var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.put(this._urlPrefix+t,e,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"get",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/collection/"+this.name,function(t,e){return t?o(t):o(null,e.body)}),n}},{key:"create",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/collection",u({},t,{name:this.name,type:this.type}),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"properties",value:function(t){return this._get("properties",t)}},{key:"count",value:function(t){return this._get("count",t)}},{key:"figures",value:function(t){return this._get("figures",t)}},{key:"revision",value:function(t){return this._get("revision",t)}},{key:"checksum",value:function(t,e){return this._get("checksum",t,e)}},{key:"load",value:function(t,e){return"function"==typeof t&&(e=t,t=void 0),this._put("load","boolean"==typeof t?{count:t}:void 0,e)}},{key:"unload",value:function(t){return this._put("unload",void 0,t)}},{key:"setProperties",value:function(t,e){return this._put("properties",t,e)}},{key:"rename",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback;return this._api.put(this._urlPrefix+"rename",{name:t},function(e,o){e?i(e):(n.name=t,n._idPrefix=t+"/",n._urlPrefix="/collection/"+t+"/",i(null,o.body))}),r}},{key:"rotate",value:function(t){return this._put("rotate",void 0,t)}},{key:"truncate",value:function(t){return this._put("truncate",void 0,t)}},{key:"drop",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.delete("/collection/"+this.name,t,function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"replace",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0),"string"==typeof n&&(n={rev:n});var r=this._connection.promisify(o),i=r.promise,a=r.callback,u=n&&n.rev,s=u&&this._connection.arangoMajor>=3?{"if-match":u}:void 0;return this._api.put(this._documentPath(t),e,n,s,function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"update",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0),"string"==typeof n&&(n={rev:n});var r=this._connection.promisify(o),i=r.promise,a=r.callback,u=n&&n.rev,s=u&&this._connection.arangoMajor>=3?{"if-match":u}:void 0;return this._api.patch(this._documentPath(t),e,n,s,function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"bulkUpdate",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof e&&(e={rev:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.patch("/document/"+this.name,t,e,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"remove",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof e&&(e={rev:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback,a=e&&e.rev,u=a&&this._connection.arangoMajor>=3?{"if-match":a}:void 0;return this._api.delete(this._documentPath(t),e,u,function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"list",value:function(t,e){"function"==typeof t&&(e=t,t=void 0),t||(t="id");var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._connection.arangoMajor<3?this._api.get("/document",{type:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.documents)}):this._api.put("/simple/all-keys",{type:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.result)}),o}},{key:"all",value:function(t,e){var n=this;"function"==typeof t&&(e=t,t=void 0);var o=this._connection.promisify(e),r=o.promise,i=o.callback;return this._api.put("/simple/all",u({},t,{collection:this.name}),function(t,e){return t?i(t):i(null,new l.default(n._connection,e.body))}),r}},{key:"any",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.put("/simple/any",{collection:this.name},function(t,e){return t?o(t):o(null,e.body.document)}),n}},{key:"first",value:function(t,e){"function"==typeof t&&(e=t,t=void 0),"number"==typeof t&&(t={count:t});var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/first",u({},t,{collection:this.name}),function(t,e){return t?r(t):r(null,e.body.result)}),o}},{key:"last",value:function(t,e){"function"==typeof t&&(e=t,t=void 0),"number"==typeof t&&(t={count:t});var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/last",u({},t,{collection:this.name}),function(t,e){return t?r(t):r(null,e.body.result)}),o}},{key:"byExample",value:function(t,e,n){var o=this;"function"==typeof e&&(n=e,e=void 0);var r=this._connection.promisify(n),i=r.promise,a=r.callback;return this._api.put("/simple/by-example",u({},e,{example:t,collection:this.name}),function(t,e){return t?a(t):a(null,new l.default(o._connection,e.body))}),i}},{key:"firstExample",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/first-example",{example:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.document)}),o}},{key:"removeByExample",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.put("/simple/remove-by-example",u({},e,{example:t,collection:this.name}),function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"replaceByExample",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0);var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._api.put("/simple/replace-by-example",u({},n,{example:t,newValue:e,collection:this.name}),function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"updateByExample",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0);var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._api.put("/simple/update-by-example",u({},n,{example:t,newValue:e,collection:this.name}),function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"lookupByKeys",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.put("/simple/lookup-by-keys",{keys:t,collection:this.name},function(t,e){return t?r(t):r(null,e.body.documents)}),o}},{key:"removeByKeys",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.put("/simple/remove-by-keys",{options:e,keys:t,collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"import",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.request({method:"POST",path:"/import",body:t,ld:Boolean(!e||"array"!==e.type),qs:u({type:"auto"},e,{collection:this.name})},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"indexes",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/index",{collection:this.name},function(t,e){return t?o(t):o(null,e.body.indexes)}),n}},{key:"index",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/index/"+this._indexHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"createIndex",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/index",t,{collection:this.name},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"dropIndex",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.delete("/index/"+this._indexHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"createCapConstraint",value:function(t,e){"number"==typeof t&&(t={size:t});var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/index",u({},t,{type:"cap"}),{collection:this.name},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"createHashIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),"boolean"==typeof e&&(e={unique:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({unique:!1},e,{type:"hash",fields:t}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createSkipList",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),"boolean"==typeof e&&(e={unique:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({unique:!1},e,{type:"skiplist",fields:t}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createPersistentIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),"boolean"==typeof e&&(e={unique:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({unique:!1},e,{type:"persistent",fields:t}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createGeoIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",u({},e,{fields:t,type:"geo"}),{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"createFulltextIndex",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"string"==typeof t&&(t=[t]),e&&(e=Number(e));var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/index",{fields:t,minLength:e,type:"fulltext"},{collection:this.name},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"fulltext",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),n||(n={}),n.index&&(n.index=this._indexHandle(n.index));var i=this._connection.promisify(o),a=i.promise,s=i.callback;return this._api.put("/simple/fulltext",u({},n,{attribute:t,query:e,collection:this.name}),function(t,e){return t?s(t):s(null,new l.default(r._connection,e.body))}),a}}]),t}();p.prototype.isArangoCollection=!0;var h=function(t){function e(){var t;i(this,e);for(var n=arguments.length,r=Array(n),a=0;a<n;a++)r[a]=arguments[a];var u=o(this,(t=e.__proto__||Object.getPrototypeOf(e)).call.apply(t,[this].concat(r)));return u.type=f.DOCUMENT_COLLECTION,u}return r(e,t),s(e,[{key:"_documentPath",value:function(t){return"/document/"+this._documentHandle(t)}},{key:"document",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get(this._documentPath(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"save",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"boolean"==typeof e&&(e={returnNew:e});var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._connection.arangoMajor>=3?this._api.post("/document/"+this.name,t,e,function(t,e){return t?i(t):i(null,e.body)}):(e||(e={}),e.collection=this.name,this._api.post("/document",t,e,function(t,e){return t?i(t):i(null,e.body)})),r}}]),e}(p),y=function(t){function e(){var t;i(this,e);for(var n=arguments.length,r=Array(n),a=0;a<n;a++)r[a]=arguments[a];var u=o(this,(t=e.__proto__||Object.getPrototypeOf(e)).call.apply(t,[this].concat(r)));return u.type=f.EDGE_COLLECTION,u}return r(e,t),s(e,[{key:"_documentPath",value:function(t){return this._connection.arangoMajor<3?"edge/"+this._documentHandle(t):"document/"+this._documentHandle(t)}},{key:"edge",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get(this._documentPath(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"save",value:function(t,e,n,o){"function"==typeof e?(o=e,e=void 0):e&&(t._from=this._documentHandle(e),t._to=this._documentHandle(n));var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._connection.arangoMajor<3?this._api.post("/edge",t,{collection:this.name,from:t._from,to:t._to},function(t,e){return t?a(t):a(null,e.body)}):this._api.post("/document",t,{collection:this.name},function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"_edges",value:function(t,e,n){var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.get("/edges/"+this.name,{direction:e,vertex:this._documentHandle(t)},function(t,e){return t?i(t):i(null,e.body.edges)}),r}},{key:"edges",value:function(t,e){return this._edges(t,void 0,e)}},{key:"inEdges",value:function(t,e){return this._edges(t,"in",e)}},{key:"outEdges",value:function(t,e){return this._edges(t,"out",e)}},{key:"traversal",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/traversal",u({},e,{startVertex:t,edgeCollection:this.name}),function(t,e){return t?i(t):i(null,e.body.result)}),r}}]),e}(p);e.EdgeCollection=y,e.DocumentCollection=h,e._BaseCollection=p,e._types=f},function(t,e,n){"use strict";function o(t){if(Array.isArray(t)){for(var e=0,n=Array(t.length);e<t.length;e++)n[e]=t[e];return n}return Array.from(t)}function r(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(e,"__esModule",{value:!0});var i=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),a=function(){function t(e,n){r(this,t),this.extra=n.extra,this._connection=e,this._api=this._connection.route("/_api"),this._result=n.result,this._hasMore=Boolean(n.hasMore),this._id=n.id,this.count=n.count}return i(t,[{key:"_drain",value:function(t){var e=this,n=this._connection.promisify(t),o=n.promise,r=n.callback;return this._more(function(n){return n?r(n):e._hasMore?e._drain(t):r(null,e)}),o}},{key:"_more",value:function(t){var e=this;this._hasMore?this._api.put("/cursor/"+this._id,function(n,r){if(n)t(n);else{var i;(i=e._result).push.apply(i,o(r.body.result)),e._hasMore=r.body.hasMore,t(null,e)}}):t(null,this)}},{key:"all",value:function(t){var e=this,n=this._connection.promisify(t),o=n.promise,r=n.callback;return this._drain(function(t){if(t)r(t);else{var n=e._result;e._result=[],r(null,n)}}),o}},{key:"next",value:function(t){var e=this,n=this._connection.promisify(t),o=n.promise,r=n.callback,i=function(){var t=e._result.shift();r(null,t)};return this._result.length?i():this._hasMore?this._more(function(t){return t?r(t):i()}):r(null),o}},{key:"hasNext",value:function(){return Boolean(this._hasMore||this._result.length)}},{key:"each",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0;return function e(){try{for(var o=void 0;n._result.length&&(o=t(n._result.shift(),a,n),a++,!1!==o););n._hasMore&&!1!==o?n._more(function(t){return t?i(t):e()}):i(null,o)}catch(t){i(t)}}(),r}},{key:"every",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0;return function e(){try{for(var o=!0;n._result.length&&(o=t(n._result.shift(),a,n),a++,o););n._hasMore&&o?n._more(function(t){return t?i(t):e()}):i(null,Boolean(o))}catch(t){i(t)}}(),r}},{key:"some",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0;return function e(){try{for(var o=!1;n._result.length&&(o=t(n._result.shift(),a,n),a++,!o););!n._hasMore||o?i(null,Boolean(o)):n._more(function(t){return t?i(t):e()})}catch(t){i(t)}}(),r}},{key:"map",value:function(t,e){var n=this,o=this._connection.promisify(e),r=o.promise,i=o.callback,a=0,u=[];return function e(){try{for(;n._result.length;)u.push(t(n._result.shift(),a,n)),a++;n._hasMore?n._more(function(t){return t?i(t):e()}):i(null,u)}catch(t){i(t)}}(),r}},{key:"reduce",value:function(t,e,n){var o=this;"function"==typeof e&&(n=e,e=void 0);var r=0,i=this._connection.promisify(n),a=i.promise,u=i.callback,s=function 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this._api.get("/database/current",function(t,e){return t?o(t):o(null,e.body.result)}),n}},{key:"createDatabase",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/database",{users:e,name:t},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"listDatabases",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/database",function(t,e){return t?o(t):o(null,e.body.result)}),n}},{key:"listUserDatabases",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/database/user",function(t,e){return t?o(t):o(null,e.body.result)}),n}},{key:"dropDatabase",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.delete("/database/"+t,function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"collection",value:function(t){return new s.DocumentCollection(this._connection,t)}},{key:"edgeCollection",value:function(t){return new s.EdgeCollection(this._connection,t)}},{key:"listCollections",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;"boolean"!=typeof t&&(t=!0);var i=this._connection.arangoMajor<3?"collections":"result";return this._api.get("/collection",{excludeSystem:t},function(t,e){return t?r(t):r(null,e.body[i])}),o}},{key:"collections",value:function(t,e){var n=this;"function"==typeof t&&(e=t,t=void 0);var o=this._connection.promisify(e),r=o.promise,i=o.callback;return this.listCollections(t,function(t,e){return t?i(t):i(null,e.map(function(t){return(0,c.default)(n._connection,t)}))}),r}},{key:"truncate",value:function(t,e){var n=this;"function"==typeof t&&(e=t);var o=this._connection.promisify(e),r=o.promise,i=o.callback;return this.listCollections(!0,function(t,e){return t?i(t):(0,v.default)(e.map(function(t){return function(e){return 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t?u(t):u(null,e.body.result)}),a}},{key:"query",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),"function"==typeof e&&(o=e,e=void 0);var i=this._connection.promisify(o),u=i.promise,s=i.callback;return t&&t.query&&(n||(n=e),e=t.bindVars,t=t.query),t&&"function"==typeof t.toAQL&&(t=t.toAQL()),this._api.post("/cursor",a({},n,{query:t,bindVars:e}),function(t,e){return t?s(t):s(null,new f.default(r._connection,e.body))}),u}},{key:"listFunctions",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/aqlfunction",function(t,e){return t?o(t):o(null,e.body)}),n}},{key:"createFunction",value:function(t,e,n){var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/aqlfunction",{name:t,code:e},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"dropFunction",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.delete("/aqlfunction/"+t,{group:Boolean(e)},function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"listServices",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._api.get("/foxx",function(t,e){return t?o(t):o(null,e.body)}),n}},{key:"installService",value:function(t,e,n,o){var i=this;"function"==typeof n&&(o=n,n=void 0);var u=n||{},s=u.configuration,c=u.dependencies,l=r(u,["configuration","dependencies"]),f=this._connection.promisify(o),p=f.promise,h=f.callback;return(0,k.default)({configuration:s,dependencies:c,source:e},function(e,n){return e?h(e):i._api.request({method:"POST",path:"/foxx",rawBody:n.body,qs:a({},l,{mount:t}),headers:n.headers},function(t,e){return t?h(t):h(null,e.body)})}),p}},{key:"upgradeService",value:function(t,e,n,o){var i=this;"function"==typeof n&&(o=n,n=void 0);var u=n||{},s=u.configuration,c=u.dependencies,l=r(u,["configuration","dependencies"]),f=this._connection.promisify(o),p=f.promise,h=f.callback;return(0,k.default)({configuration:s,dependencies:c,source:e},function(e,n){return e?h(e):i._api.request({method:"PATCH",path:"/foxx/service",rawBody:n.body,qs:a({},l,{mount:t}),headers:n.headers},function(t,e){return t?h(t):h(null,e.body)})}),p}},{key:"replaceService",value:function(t,e,n,o){var i=this;"function"==typeof n&&(o=n,n=void 0);var u=n||{},s=u.configuration,c=u.dependencies,l=r(u,["configuration","dependencies"]),f=this._connection.promisify(o),p=f.promise,h=f.callback;return(0,k.default)({configuration:s,dependencies:c,source:e},function(e,n){return e?h(e):i._api.request({method:"PUT",path:"/foxx/service",rawBody:n.body,qs:a({},l,{mount:t}),headers:n.headers},function(t,e){return t?h(t):h(null,e.body)})}),p}},{key:"uninstallService",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.delete("/foxx/service",a({},e,{mount:t}),function(t){return i(t?t:null)}),r}},{key:"getService",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/foxx/service",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"getServiceConfiguration",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"boolean"!=typeof e&&(e=!1);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.get("/foxx/configuration",{mount:t,minimal:e},function(t,n){if(t)return i(t);if(e){var o={},r=!0,a=!1,u=void 0;try{for(var s,c=Object.keys(n.body)[Symbol.iterator]();!(r=(s=c.next()).done);r=!0){var l=s.value;o[l]=n.body[l].current}}catch(t){a=!0,u=t}finally{try{!r&&c.return&&c.return()}finally{if(a)throw u}}n.body={values:o}}i(null,n.body)}),r}},{key:"updateServiceConfiguration",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),"boolean"!=typeof n&&(n=!1);var i=this._connection.promisify(o),a=i.promise,u=i.callback;return this._api.patch("/foxx/configuration",e,{mount:t,minimal:n},function(e,o){if(e)return u(e);var i=o.body;if(n||!i.values||!i.values.title)return u(null,i);r.getServiceConfiguration(t,n,function(t,e){if(t)return u(t);if(i.warnings){var n=!0,o=!1,r=void 0;try{for(var a,s=Object.keys(e)[Symbol.iterator]();!(n=(a=s.next()).done);n=!0){var c=a.value;e.body[c].warning=i.warnings[c]}}catch(t){o=!0,r=t}finally{try{!n&&s.return&&s.return()}finally{if(o)throw r}}}u(null,e.body)})}),a}},{key:"replaceServiceConfiguration",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),"boolean"!=typeof n&&(n=!1);var i=this._connection.promisify(o),a=i.promise,u=i.callback;return this._api.put("/foxx/configuration",e,{mount:t,minimal:n},function(e,o){if(e)return u(e);var i=o.body;if(n||!i.values||!i.values.title)return u(null,i);r.getServiceConfiguration(t,n,function(t,e){if(t)return u(t);if(i.warnings){var n=!0,o=!1,r=void 0;try{for(var a,s=Object.keys(e)[Symbol.iterator]();!(n=(a=s.next()).done);n=!0){var c=a.value;e.body[c].warning=i.warnings[c]}}catch(t){o=!0,r=t}finally{try{!n&&s.return&&s.return()}finally{if(o)throw r}}}u(null,e.body)})}),a}},{key:"getServiceDependencies",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0),"boolean"!=typeof e&&(e=!1);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.get("/foxx/dependencies",{mount:t,minimal:e},function(t,n){if(t)return i(t);if(e){var o={},r=!0,a=!1,u=void 0;try{for(var s,c=Object.keys(n.body)[Symbol.iterator]();!(r=(s=c.next()).done);r=!0){var l=s.value;o[l]=n.body[l].current}}catch(t){a=!0,u=t}finally{try{!r&&c.return&&c.return()}finally{if(a)throw u}}n.body={values:o}}i(null,n.body)}),r}},{key:"updateServiceDependencies",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),"boolean"!=typeof n&&(n=!1);var i=this._connection.promisify(o),a=i.promise,u=i.callback;return this._api.patch("/foxx/dependencies",e,{mount:t,minimal:n},function(e,o){if(e)return u(e);var i=o.body;if(n||!i.values||!i.values.title)return u(null,i);r.getServiceDependencies(t,n,function(t,e){if(t)return u(t);if(i.warnings){var n=!0,o=!1,r=void 0;try{for(var a,s=Object.keys(e)[Symbol.iterator]();!(n=(a=s.next()).done);n=!0){var c=a.value;e.body[c].warning=i.warnings[c]}}catch(t){o=!0,r=t}finally{try{!n&&s.return&&s.return()}finally{if(o)throw r}}}u(null,e.body)})}),a}},{key:"replaceServiceDependencies",value:function(t,e,n,o){var r=this;"function"==typeof n&&(o=n,n=void 0),"boolean"!=typeof n&&(n=!1);var i=this._connection.promisify(o),a=i.promise,u=i.callback;return this._api.put("/foxx/dependencies",e,{mount:t,minimal:n},function(e,o){if(e)return u(e);var i=o.body;if(n||!i.values||!i.values.title)return u(null,i);r.getServiceDependencies(t,n,function(t,e){if(t)return u(t);if(i.warnings){var n=!0,o=!1,r=void 0;try{for(var a,s=Object.keys(e)[Symbol.iterator]();!(n=(a=s.next()).done);n=!0){var c=a.value;e.body[c].warning=i.warnings[c]}}catch(t){o=!0,r=t}finally{try{!n&&s.return&&s.return()}finally{if(o)throw r}}}u(null,e.body)})}),a}},{key:"enableServiceDevelopmentMode",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/foxx/development",void 0,{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"disableServiceDevelopmentMode",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.delete("/foxx/development",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"listServiceScripts",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/foxx/scripts",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"runServiceScript",value:function(t,e,n,o){"function"==typeof n&&(o=n,n=void 0);var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._api.post("/foxx/scripts/"+e,n,{mount:t},function(t,e){return t?a(t):a(null,e.body)}),i}},{key:"runServiceTests",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/foxx/tests",void 0,a({},e,{mount:t}),function(t,e){return t?i(t):i(null,e.body)}),r}},{key:"getServiceReadme",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/foxx/readme",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"getServiceDocumentation",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.get("/foxx/swagger",{mount:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"downloadService",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.request({method:"POST",path:"/foxx/download",qs:{mount:t},expectBinary:!0},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"commitLocalServiceState",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/foxx/commit",void 0,{replace:t},function(t,e){return r(t?t:null)}),o}}]),t}();e.default=w},function(t,e,n){"use strict";function o(t){return t&&t.__esModule?t:{default:t}}function r(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}Object.defineProperty(e,"__esModule",{value:!0});var i="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},a=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var o in n)Object.prototype.hasOwnProperty.call(n,o)&&(t[o]=n[o])}return t},u=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),s=n(10),c=o(s),l=n(26),f=o(l),p=n(28),h=o(p),y=n(6),d=o(y),m=n(29),v=o(m),b=n(31),_=o(b),g=n(37),k=o(g),w=n(4),x=o(w),O=n(38),j=o(O),S=/\/(json|javascript)(\W|$)/,T=function(){function t(e){r(this,t),"string"==typeof e&&(e={url:e}),this.config=a({},t.defaults,e),this.config.agentOptions=a({},t.agentDefaults,this.config.agentOptions),this.config.headers||(this.config.headers={}),this.config.headers["x-arango-version"]||(this.config.headers["x-arango-version"]=this.config.arangoVersion),this.arangoMajor=Math.floor(this.config.arangoVersion/1e4);var 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o(t){if("number"==typeof t){if(!o[t])throw new Error("invalid status code: "+t);return t}if("string"!=typeof t)throw new TypeError("code must be a number or string");var e=parseInt(t,10);if(!isNaN(e)){if(!o[e])throw new Error("invalid status code: "+e);return e}if(!(e=o[t.toLowerCase()]))throw new Error('invalid status message: "'+t+'"');return e}var r=n(35);t.exports=o,o.STATUS_CODES=r,o.codes=function(t,e){var n=[];return Object.keys(e).forEach(function(o){var r=e[o],i=Number(o);t[i]=r,t[r]=i,t[r.toLowerCase()]=i,n.push(i)}),n}(o,r),o.redirect={300:!0,301:!0,302:!0,303:!0,305:!0,307:!0,308:!0},o.empty={204:!0,205:!0,304:!0},o.retry={502:!0,503:!0,504:!0}},function(t,e){t.exports={100:"Continue",101:"Switching Protocols",102:"Processing",200:"OK",201:"Created",202:"Accepted",203:"Non-Authoritative Information",204:"No Content",205:"Reset Content",206:"Partial Content",207:"Multi-Status",208:"Already Reported",226:"IM Used",300:"Multiple Choices",301:"Moved 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Negotiates",507:"Insufficient Storage",508:"Loop Detected",509:"Bandwidth Limit Exceeded",510:"Not Extended",511:"Network Authentication Required"}},function(t,e,n){"use strict";"function"==typeof Object.create?t.exports=function(t,e){t.super_=e,t.prototype=Object.create(e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}})}:t.exports=function(t,e){t.super_=e;var n=function(){};n.prototype=e.prototype,t.prototype=new n,t.prototype.constructor=t}},function(t,e,n){"use strict";(function(t){function n(e){return!1===e?function(t){return{callback:t||o}}:function(n){var r=e||t.Promise;if(n||!r)return{callback:n||o};var i=void 0,a=new r(function(t,e){i=function(n,o){n?e(n):t(o)}});return{callback:i,promise:a}}}Object.defineProperty(e,"__esModule",{value:!0}),e.default=n;var o=function(){}}).call(e,n(0))},function(t,e,n){"use strict";t.exports=n(39)},function(t,e,n){"use strict";var o=n(40);e.operation=function(t){var n=e.timeouts(t);return new o(n,{forever:t&&t.forever,unref:t&&t.unref})},e.timeouts=function(t){if(t instanceof Array)return[].concat(t);var e={retries:10,factor:2,minTimeout:1e3,maxTimeout:1/0,randomize:!1};for(var n in t)e[n]=t[n];if(e.minTimeout>e.maxTimeout)throw new Error("minTimeout is greater than maxTimeout");for(var o=[],r=0;r<e.retries;r++)o.push(this.createTimeout(r,e));return t&&t.forever&&!o.length&&o.push(this.createTimeout(r,e)),o.sort(function(t,e){return t-e}),o},e.createTimeout=function(t,e){var n=e.randomize?Math.random()+1:1,o=Math.round(n*e.minTimeout*Math.pow(e.factor,t));return o=Math.min(o,e.maxTimeout)},e.wrap=function(t,n,o){if(n instanceof Array&&(o=n,n=null),!o){o=[];for(var r in t)"function"==typeof t[r]&&o.push(r)}for(var i=0;i<o.length;i++){var a=o[i],u=t[a];t[a]=function(){var o=e.operation(n),r=Array.prototype.slice.call(arguments),i=r.pop();r.push(function(t){o.retry(t)||(t&&(arguments[0]=o.mainError()),i.apply(this,arguments))}),o.attempt(function(){u.apply(t,r)})},t[a].options=n}}},function(t,e,n){"use strict";function o(t,e){"boolean"==typeof e&&(e={forever:e}),this._timeouts=t,this._options=e||{},this._fn=null,this._errors=[],this._attempts=1,this._operationTimeout=null,this._operationTimeoutCb=null,this._timeout=null,this._options.forever&&(this._cachedTimeouts=this._timeouts.slice(0))}t.exports=o,o.prototype.stop=function(){this._timeout&&clearTimeout(this._timeout),this._timeouts=[],this._cachedTimeouts=null},o.prototype.retry=function(t){if(this._timeout&&clearTimeout(this._timeout),!t)return!1;this._errors.push(t);var e=this._timeouts.shift();if(void 0===e){if(!this._cachedTimeouts)return!1;this._errors.splice(this._errors.length-1,this._errors.length),this._timeouts=this._cachedTimeouts.slice(0),e=this._timeouts.shift()}var n=this,o=setTimeout(function(){n._attempts++,n._operationTimeoutCb&&(n._timeout=setTimeout(function(){n._operationTimeoutCb(n._attempts)},n._operationTimeout),this._options.unref&&n._timeout.unref()),n._fn(n._attempts)},e);return this._options.unref&&o.unref(),!0},o.prototype.attempt=function(t,e){this._fn=t,e&&(e.timeout&&(this._operationTimeout=e.timeout),e.cb&&(this._operationTimeoutCb=e.cb));var n=this;this._operationTimeoutCb&&(this._timeout=setTimeout(function(){n._operationTimeoutCb()},n._operationTimeout)),this._fn(this._attempts)},o.prototype.try=function(t){console.log("Using RetryOperation.try() is deprecated"),this.attempt(t)},o.prototype.start=function(t){console.log("Using RetryOperation.start() is deprecated"),this.attempt(t)},o.prototype.start=o.prototype.try,o.prototype.errors=function(){return this._errors},o.prototype.attempts=function(){return this._attempts},o.prototype.mainError=function(){if(0===this._errors.length)return null;for(var t={},e=null,n=0,o=0;o<this._errors.length;o++){var r=this._errors[o],i=r.message,a=(t[i]||0)+1;t[i]=a,a>=n&&(e=r,n=a)}return e}},function(t,e,n){"use strict";function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function r(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function i(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}Object.defineProperty(e,"__esModule",{value:!0}),e.EdgeCollection=e.VertexCollection=void 0;var a=Object.assign||function(t){for(var e=1;e<arguments.length;e++){var n=arguments[e];for(var o in n)Object.prototype.hasOwnProperty.call(n,o)&&(t[o]=n[o])}return t},u=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),s=n(1),c=function(t){function e(t,n,i){o(this,e);var a=r(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,t,n));return a.type=s._types.DOCUMENT_COLLECTION,a.graph=i,a._gharial=a._api.route("/gharial/"+a.graph.name+"/vertex"),a}return i(e,t),u(e,[{key:"_documentPath",value:function(t){return"/document/"+this._documentHandle(t)}},{key:"remove",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.delete("/"+this._documentHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"vertex",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.get("/"+this._documentHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"save",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.post(this.name,t,function(t,e){return t?r(t):r(null,e.body)}),o}}]),e}(s._BaseCollection),l=function(t){function e(t,n,i){o(this,e);var a=r(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,t,n));return a.type=s._types.EDGE_COLLECTION,a.graph=i,a._gharial=a._api.route("/gharial/"+a.graph.name+"/edge"),a}return i(e,t),u(e,[{key:"remove",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.delete("/"+this._documentHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"edge",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.get("/"+this._documentHandle(t),function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"save",value:function(t,e,n,o){"function"==typeof e?(o=e,e=void 0):e&&(t._from=this._documentHandle(e),t._to=this._documentHandle(n));var r=this._connection.promisify(o),i=r.promise,a=r.callback;return this._gharial.post(this.name,t,function(t,e){return t?a(t):a(null,e.body)}),i}}]),e}(s.EdgeCollection),f=function(){function t(e,n){o(this,t),this.name=n,this._connection=e,this._api=this._connection.route("/_api"),this._gharial=this._api.route("/gharial/"+this.name)}return u(t,[{key:"get",value:function(t){var e=this._connection.promisify(t),n=e.promise,o=e.callback;return this._gharial.get(function(t,e){return t?o(t):o(null,e.body.graph)}),n}},{key:"create",value:function(t,e){"function"==typeof t&&(e=t,t=void 0);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._api.post("/gharial",a({},t,{name:this.name}),function(t,e){return t?r(t):r(null,e.body.graph)}),o}},{key:"drop",value:function(t,e){"function"==typeof t&&(e=t,t=void 0),"boolean"!=typeof t&&(t=!1);var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.delete({dropCollections:t},function(t,e){return t?r(t):r(null,e.body)}),o}},{key:"vertexCollection",value:function(t){return new c(this._connection,t,this)}},{key:"addVertexCollection",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.post("/vertex",{collection:t},function(t,e){return t?r(t):r(null,e.body.graph)}),o}},{key:"removeVertexCollection",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return"boolean"!=typeof e&&(e=!1),this._gharial.delete("/vertex/"+t,{dropCollection:e},function(t,e){return t?i(t):i(null,e.body.graph)}),r}},{key:"edgeCollection",value:function(t){return new l(this._connection,t,this)}},{key:"addEdgeDefinition",value:function(t,e){var n=this._connection.promisify(e),o=n.promise,r=n.callback;return this._gharial.post("/edge",t,function(t,e){return t?r(t):r(null,e.body.graph)}),o}},{key:"replaceEdgeDefinition",value:function(t,e,n){var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._gharial.put("/edge/"+t,e,function(t,e){return t?i(t):i(null,e.body.graph)}),r}},{key:"removeEdgeDefinition",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return"boolean"!=typeof e&&(e=!1),this._gharial.delete("edge/"+t,{dropCollection:e},function(t,e){return t?i(t):i(null,e.body.graph)}),r}},{key:"traversal",value:function(t,e,n){"function"==typeof e&&(n=e,e=void 0);var o=this._connection.promisify(n),r=o.promise,i=o.callback;return this._api.post("/traversal",a({},e,{startVertex:t,graphName:this.name}),function(t,e){return t?i(t):i(null,e.body.result)}),r}}]),t}();e.default=f,e.VertexCollection=c,e.EdgeCollection=l},function(t,e,n){"use strict";function o(t,e){var n=[],o=t.length,r=!1;if(0===t.length)return e(null,n);var i=function(t){return function(i,a){if(o-=1,i||(n[t]=a),!r){if(i)e(i);else{if(0!==o)return;n.every(function(t){return void 0===t})?e(null):e(null,n)}r=!0}}};t.forEach(function(t,e){return t(i(e))})}Object.defineProperty(e,"__esModule",{value:!0}),e.default=o},function(t,e,n){"use strict";(function(t){function n(e,n){var r=void 0;try{r=new t.FormData;var i=!0,a=!1,u=void 0;try{for(var s,c=Object.keys(e)[Symbol.iterator]();!(i=(s=c.next()).done);i=!0){var l=s.value,f=e[l];void 0!==f&&(f instanceof t.Blob||"object"!==(void 0===f?"undefined":o(f))&&"function"!=typeof f||(f=JSON.stringify(f)),r.append(l,f))}}catch(t){a=!0,u=t}finally{try{!i&&c.return&&c.return()}finally{if(a)throw u}}}catch(t){return void n(t)}n(null,{body:r})}Object.defineProperty(e,"__esModule",{value:!0});var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t};e.default=n}).call(e,n(0))},function(t,e,n){"use strict";function o(t){for(var e={},n=[],o=t[0],r=arguments.length,i=Array(r>1?r-1:0),a=1;a<r;a++)i[a-1]=arguments[a];for(var u=0;u<i.length;u++){var s=i[u],c=s;if(s&&"function"==typeof s.toAQL)o+=""+s.toAQL()+t[u+1];else{var l=n.indexOf(s),f=-1!==l,p="value"+(f?l:n.length);s&&s.isArangoCollection&&(p="@"+p,c=s.name),f||(n.push(s),e[p]=c),o+="@"+p+t[u+1]}}return{query:o,bindVars:e}}Object.defineProperty(e,"__esModule",{value:!0}),e.default=o}])});
\ No newline at end of file
diff --git a/package.json b/package.json
index 922a29def..d07e7cc28 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
   "typings": "arangojs.d.ts",
   "scripts": {
     "test": "mocha --growl",
-    "lint": "standard --verbose src/**/*.js test/**/*.js | snazzy",
+    "lint": "eslint src/**/*.js test/**/*.js",
     "ci": "mocha",
     "preci": "npm install",
     "jenkins": "npm run ci -- --timeout 0 --reporter xunit-file",
@@ -54,6 +54,7 @@
     "prepublish": "npm run lint && npm run dist && node -e 'require(\"./\");'"
   },
   "dependencies": {
+    "babel-eslint": "^8.0.3",
     "es6-error": "^4.0.1",
     "http-errors": "^1.6.1",
     "linkedlist": "^1.0.1",
@@ -71,10 +72,12 @@
     "babel-preset-env": "^1.5.2",
     "chai": "^4.0.2",
     "core-js": "^2.4.1",
+    "eslint": "^4.13.0",
+    "eslint-config-prettier": "^2.9.0",
+    "eslint-plugin-prettier": "^2.3.1",
     "mocha": "3.4.2",
-    "snazzy": "7.0.0",
-    "standard": "10.0.2",
+    "prettier": "^1.9.1",
     "webpack": "^3.0.0",
     "xunit-file": "1.0.0"
   }
-}
\ No newline at end of file
+}
diff --git a/src/aql-query.js b/src/aql-query.js
index cbc9ae8b6..82f43eeb8 100644
--- a/src/aql-query.js
+++ b/src/aql-query.js
@@ -1,26 +1,26 @@
-export default function aql (strings, ...args) {
-  const bindVars = {}
-  const bindVals = []
-  let query = strings[0]
+export default function aql(strings, ...args) {
+  const bindVars = {};
+  const bindVals = [];
+  let query = strings[0];
   for (let i = 0; i < args.length; i++) {
-    const rawValue = args[i]
-    let value = rawValue
-    if (rawValue && typeof rawValue.toAQL === 'function') {
-      query += `${rawValue.toAQL()}${strings[i + 1]}`
-      continue
+    const rawValue = args[i];
+    let value = rawValue;
+    if (rawValue && typeof rawValue.toAQL === "function") {
+      query += `${rawValue.toAQL()}${strings[i + 1]}`;
+      continue;
     }
-    const index = bindVals.indexOf(rawValue)
-    const isKnown = index !== -1
-    let name = `value${isKnown ? index : bindVals.length}`
+    const index = bindVals.indexOf(rawValue);
+    const isKnown = index !== -1;
+    let name = `value${isKnown ? index : bindVals.length}`;
     if (rawValue && rawValue.isArangoCollection) {
-      name = `@${name}`
-      value = rawValue.name
+      name = `@${name}`;
+      value = rawValue.name;
     }
     if (!isKnown) {
-      bindVals.push(rawValue)
-      bindVars[name] = value
+      bindVals.push(rawValue);
+      bindVars[name] = value;
     }
-    query += `@${name}${strings[i + 1]}`
+    query += `@${name}${strings[i + 1]}`;
   }
-  return {query, bindVars}
+  return { query, bindVars };
 }
diff --git a/src/collection.js b/src/collection.js
index b3c7f2581..de25f7e3b 100644
--- a/src/collection.js
+++ b/src/collection.js
@@ -1,781 +1,782 @@
-import ArrayCursor from './cursor'
+import ArrayCursor from "./cursor";
 
 export const types = {
   DOCUMENT_COLLECTION: 2,
   EDGE_COLLECTION: 3
-}
+};
 
 class BaseCollection {
-  constructor (connection, name) {
-    this.name = name
-    this._urlPrefix = `/collection/${name}/`
-    this._idPrefix = `${name}/`
-    this._connection = connection
-    this._api = this._connection.route('/_api')
+  constructor(connection, name) {
+    this.name = name;
+    this._urlPrefix = `/collection/${name}/`;
+    this._idPrefix = `${name}/`;
+    this._connection = connection;
+    this._api = this._connection.route("/_api");
     if (this._connection.arangoMajor >= 3) {
-      this.first = undefined
-      this.last = undefined
-      this.createCapConstraint = undefined
+      this.first = undefined;
+      this.last = undefined;
+      this.createCapConstraint = undefined;
     }
   }
 
-  _documentHandle (documentHandle) {
-    if (typeof documentHandle !== 'string') {
+  _documentHandle(documentHandle) {
+    if (typeof documentHandle !== "string") {
       if (documentHandle._id) {
-        return documentHandle._id
+        return documentHandle._id;
       }
       if (documentHandle._key) {
-        return this._idPrefix + documentHandle._key
+        return this._idPrefix + documentHandle._key;
       }
-      throw new Error('Document handle must be a document or string')
+      throw new Error("Document handle must be a document or string");
     }
-    if (documentHandle.indexOf('/') === -1) {
-      return this._idPrefix + documentHandle
+    if (documentHandle.indexOf("/") === -1) {
+      return this._idPrefix + documentHandle;
     }
-    return documentHandle
+    return documentHandle;
   }
 
-  _indexHandle (indexHandle) {
-    if (typeof indexHandle !== 'string') {
+  _indexHandle(indexHandle) {
+    if (typeof indexHandle !== "string") {
       if (indexHandle.id) {
-        return indexHandle.id
+        return indexHandle.id;
       }
-      throw new Error('Document handle must be a document or string')
+      throw new Error("Document handle must be a document or string");
     }
-    if (indexHandle.indexOf('/') === -1) {
-      return this._idPrefix + indexHandle
+    if (indexHandle.indexOf("/") === -1) {
+      return this._idPrefix + indexHandle;
     }
-    return indexHandle
+    return indexHandle;
   }
 
-  _get (path, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  _get(path, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
       this._urlPrefix + path,
       opts,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  _put (path, data, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  _put(path, data, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
       this._urlPrefix + path,
       data,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  get (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  get(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
       `/collection/${this.name}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  create (properties, cb) {
-    if (typeof properties === 'function') {
-      cb = properties
-      properties = undefined
+  create(properties, cb) {
+    if (typeof properties === "function") {
+      cb = properties;
+      properties = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/collection',
-      {...properties, name: this.name, type: this.type},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/collection",
+      { ...properties, name: this.name, type: this.type },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  properties (cb) {
-    return this._get('properties', cb)
+  properties(cb) {
+    return this._get("properties", cb);
   }
 
-  count (cb) {
-    return this._get('count', cb)
+  count(cb) {
+    return this._get("count", cb);
   }
 
-  figures (cb) {
-    return this._get('figures', cb)
+  figures(cb) {
+    return this._get("figures", cb);
   }
 
-  revision (cb) {
-    return this._get('revision', cb)
+  revision(cb) {
+    return this._get("revision", cb);
   }
 
-  checksum (opts, cb) {
-    return this._get('checksum', opts, cb)
+  checksum(opts, cb) {
+    return this._get("checksum", opts, cb);
   }
 
-  load (count, cb) {
-    if (typeof count === 'function') {
-      cb = count
-      count = undefined
+  load(count, cb) {
+    if (typeof count === "function") {
+      cb = count;
+      count = undefined;
     }
-    return this._put('load', (
-      typeof count === 'boolean' ? {count: count} : undefined
-    ), cb)
+    return this._put(
+      "load",
+      typeof count === "boolean" ? { count: count } : undefined,
+      cb
+    );
   }
 
-  unload (cb) {
-    return this._put('unload', undefined, cb)
+  unload(cb) {
+    return this._put("unload", undefined, cb);
   }
 
-  setProperties (properties, cb) {
-    return this._put('properties', properties, cb)
+  setProperties(properties, cb) {
+    return this._put("properties", properties, cb);
   }
 
-  rename (name, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
-    this._api.put(
-      this._urlPrefix + 'rename',
-      {name},
-      (err, res) => {
-        if (err) callback(err)
-        else {
-          this.name = name
-          this._idPrefix = `${name}/`
-          this._urlPrefix = `/collection/${name}/`
-          callback(null, res.body)
-        }
+  rename(name, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
+    this._api.put(this._urlPrefix + "rename", { name }, (err, res) => {
+      if (err) callback(err);
+      else {
+        this.name = name;
+        this._idPrefix = `${name}/`;
+        this._urlPrefix = `/collection/${name}/`;
+        callback(null, res.body);
       }
-    )
-    return promise
+    });
+    return promise;
   }
 
-  rotate (cb) {
-    return this._put('rotate', undefined, cb)
+  rotate(cb) {
+    return this._put("rotate", undefined, cb);
   }
 
-  truncate (cb) {
-    return this._put('truncate', undefined, cb)
+  truncate(cb) {
+    return this._put("truncate", undefined, cb);
   }
 
-  drop (opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  drop(opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.delete(
       `/collection/${this.name}`,
       opts,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  replace (documentHandle, newValue, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  replace(documentHandle, newValue, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof opts === 'string') {
-      opts = {rev: opts}
+    if (typeof opts === "string") {
+      opts = { rev: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    const rev = opts && opts.rev
-    const headers = (
+    const { promise, callback } = this._connection.promisify(cb);
+    const rev = opts && opts.rev;
+    const headers =
       rev && this._connection.arangoMajor >= 3
-      ? {'if-match': rev}
-      : undefined
-    )
+        ? { "if-match": rev }
+        : undefined;
     this._api.put(
       this._documentPath(documentHandle),
       newValue,
       opts,
       headers,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  update (documentHandle, newValue, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  update(documentHandle, newValue, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof opts === 'string') {
-      opts = {rev: opts}
+    if (typeof opts === "string") {
+      opts = { rev: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    const rev = opts && opts.rev
-    const headers = (
+    const { promise, callback } = this._connection.promisify(cb);
+    const rev = opts && opts.rev;
+    const headers =
       rev && this._connection.arangoMajor >= 3
-      ? {'if-match': rev}
-      : undefined
-    )
+        ? { "if-match": rev }
+        : undefined;
     this._api.patch(
       this._documentPath(documentHandle),
       newValue,
       opts,
       headers,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  bulkUpdate (newValues, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  bulkUpdate(newValues, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof opts === 'string') {
-      opts = {rev: opts}
+    if (typeof opts === "string") {
+      opts = { rev: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
 
     this._api.patch(
       `/document/${this.name}`,
       newValues,
       opts,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  remove (documentHandle, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  remove(documentHandle, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof opts === 'string') {
-      opts = {rev: opts}
+    if (typeof opts === "string") {
+      opts = { rev: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    const rev = opts && opts.rev
-    const headers = (
+    const { promise, callback } = this._connection.promisify(cb);
+    const rev = opts && opts.rev;
+    const headers =
       rev && this._connection.arangoMajor >= 3
-      ? {'if-match': rev}
-      : undefined
-    )
+        ? { "if-match": rev }
+        : undefined;
     this._api.delete(
       this._documentPath(documentHandle),
       opts,
       headers,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  list (type, cb) {
-    if (typeof type === 'function') {
-      cb = type
-      type = undefined
+  list(type, cb) {
+    if (typeof type === "function") {
+      cb = type;
+      type = undefined;
     }
-    if (!type) type = 'id'
-    const {promise, callback} = this._connection.promisify(cb)
+    if (!type) type = "id";
+    const { promise, callback } = this._connection.promisify(cb);
     if (this._connection.arangoMajor < 3) {
       this._api.get(
-        '/document',
-        {type, collection: this.name},
-        (err, res) => err ? callback(err) : callback(null, res.body.documents)
-      )
+        "/document",
+        { type, collection: this.name },
+        (err, res) => (err ? callback(err) : callback(null, res.body.documents))
+      );
     } else {
       this._api.put(
-        '/simple/all-keys',
-        {type, collection: this.name},
-        (err, res) => err ? callback(err) : callback(null, res.body.result)
-      )
+        "/simple/all-keys",
+        { type, collection: this.name },
+        (err, res) => (err ? callback(err) : callback(null, res.body.result))
+      );
     }
-    return promise
+    return promise;
   }
 
-  all (opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  all(opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/all',
-      {...opts, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, new ArrayCursor(this._connection, res.body))
-    )
-    return promise
-  }
-
-  any (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+      "/simple/all",
+      { ...opts, collection: this.name },
+      (err, res) =>
+        err
+          ? callback(err)
+          : callback(null, new ArrayCursor(this._connection, res.body))
+    );
+    return promise;
+  }
+
+  any(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/any',
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.document)
-    )
-    return promise
+      "/simple/any",
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.document))
+    );
+    return promise;
   }
 
-  first (opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  first(opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof opts === 'number') {
-      opts = {count: opts}
+    if (typeof opts === "number") {
+      opts = { count: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/first',
-      {...opts, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-    )
-    return promise
+      "/simple/first",
+      { ...opts, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 
-  last (opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  last(opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof opts === 'number') {
-      opts = {count: opts}
+    if (typeof opts === "number") {
+      opts = { count: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/last',
-      {...opts, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-    )
-    return promise
+      "/simple/last",
+      { ...opts, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 
-  byExample (example, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  byExample(example, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/by-example',
-      {...opts, example, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, new ArrayCursor(this._connection, res.body))
-    )
-    return promise
-  }
-
-  firstExample (example, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+      "/simple/by-example",
+      { ...opts, example, collection: this.name },
+      (err, res) =>
+        err
+          ? callback(err)
+          : callback(null, new ArrayCursor(this._connection, res.body))
+    );
+    return promise;
+  }
+
+  firstExample(example, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/first-example',
-      {example, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.document)
-    )
-    return promise
+      "/simple/first-example",
+      { example, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.document))
+    );
+    return promise;
   }
 
-  removeByExample (example, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  removeByExample(example, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/remove-by-example',
-      {...opts, example, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/simple/remove-by-example",
+      { ...opts, example, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  replaceByExample (example, newValue, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  replaceByExample(example, newValue, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/replace-by-example',
-      {...opts, example, newValue, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/simple/replace-by-example",
+      { ...opts, example, newValue, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  updateByExample (example, newValue, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  updateByExample(example, newValue, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/update-by-example',
-      {...opts, example, newValue, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/simple/update-by-example",
+      { ...opts, example, newValue, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  lookupByKeys (keys, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  lookupByKeys(keys, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/lookup-by-keys',
-      {keys, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.documents)
-    )
-    return promise
+      "/simple/lookup-by-keys",
+      { keys, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.documents))
+    );
+    return promise;
   }
 
-  removeByKeys (keys, options, cb) {
-    if (typeof options === 'function') {
-      cb = options
-      options = undefined
+  removeByKeys(keys, options, cb) {
+    if (typeof options === "function") {
+      cb = options;
+      options = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/remove-by-keys',
-      {options, keys, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/simple/remove-by-keys",
+      { options, keys, collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  import (data, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  import(data, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.request(
       {
-        method: 'POST',
-        path: '/import',
+        method: "POST",
+        path: "/import",
         body: data,
-        ld: Boolean(!opts || opts.type !== 'array'),
-        qs: {type: 'auto', ...opts, collection: this.name}
+        ld: Boolean(!opts || opts.type !== "array"),
+        qs: { type: "auto", ...opts, collection: this.name }
       },
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  indexes (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  indexes(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/index',
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.indexes)
-    )
-    return promise
+      "/index",
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.indexes))
+    );
+    return promise;
   }
 
-  index (indexHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  index(indexHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
       `/index/${this._indexHandle(indexHandle)}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createIndex (details, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  createIndex(details, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/index',
+      "/index",
       details,
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  dropIndex (indexHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  dropIndex(indexHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.delete(
       `/index/${this._indexHandle(indexHandle)}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createCapConstraint (size, cb) {
-    if (typeof size === 'number') {
-      size = {size: size}
+  createCapConstraint(size, cb) {
+    if (typeof size === "number") {
+      size = { size: size };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/index',
-      {...size, type: 'cap'},
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/index",
+      { ...size, type: "cap" },
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createHashIndex (fields, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  createHashIndex(fields, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof fields === 'string') {
-      fields = [fields]
+    if (typeof fields === "string") {
+      fields = [fields];
     }
-    if (typeof opts === 'boolean') {
-      opts = {unique: opts}
+    if (typeof opts === "boolean") {
+      opts = { unique: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/index',
-      {unique: false, ...opts, type: 'hash', fields: fields},
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/index",
+      { unique: false, ...opts, type: "hash", fields: fields },
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createSkipList (fields, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  createSkipList(fields, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof fields === 'string') {
-      fields = [fields]
+    if (typeof fields === "string") {
+      fields = [fields];
     }
-    if (typeof opts === 'boolean') {
-      opts = {unique: opts}
+    if (typeof opts === "boolean") {
+      opts = { unique: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/index',
-      {unique: false, ...opts, type: 'skiplist', fields: fields},
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/index",
+      { unique: false, ...opts, type: "skiplist", fields: fields },
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createPersistentIndex (fields, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  createPersistentIndex(fields, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof fields === 'string') {
-      fields = [fields]
+    if (typeof fields === "string") {
+      fields = [fields];
     }
-    if (typeof opts === 'boolean') {
-      opts = {unique: opts}
+    if (typeof opts === "boolean") {
+      opts = { unique: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/index',
-      {unique: false, ...opts, type: 'persistent', fields: fields},
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/index",
+      { unique: false, ...opts, type: "persistent", fields: fields },
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createGeoIndex (fields, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  createGeoIndex(fields, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof fields === 'string') {
-      fields = [fields]
+    if (typeof fields === "string") {
+      fields = [fields];
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/index',
-      {...opts, fields, type: 'geo'},
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/index",
+      { ...opts, fields, type: "geo" },
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createFulltextIndex (fields, minLength, cb) {
-    if (typeof minLength === 'function') {
-      cb = minLength
-      minLength = undefined
+  createFulltextIndex(fields, minLength, cb) {
+    if (typeof minLength === "function") {
+      cb = minLength;
+      minLength = undefined;
     }
-    if (typeof fields === 'string') {
-      fields = [fields]
+    if (typeof fields === "string") {
+      fields = [fields];
     }
-    if (minLength) minLength = Number(minLength)
-    const {promise, callback} = this._connection.promisify(cb)
+    if (minLength) minLength = Number(minLength);
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/index',
-      {fields, minLength, type: 'fulltext'},
-      {collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
-  }
-
-  fulltext (attribute, query, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
-    }
-    if (!opts) opts = {}
-    if (opts.index) opts.index = this._indexHandle(opts.index)
-    const {promise, callback} = this._connection.promisify(cb)
+      "/index",
+      { fields, minLength, type: "fulltext" },
+      { collection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
+  }
+
+  fulltext(attribute, query, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
+    }
+    if (!opts) opts = {};
+    if (opts.index) opts.index = this._indexHandle(opts.index);
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/simple/fulltext',
-      {...opts, attribute, query, collection: this.name},
-      (err, res) => err ? callback(err) : callback(null, new ArrayCursor(this._connection, res.body))
-    )
-    return promise
+      "/simple/fulltext",
+      { ...opts, attribute, query, collection: this.name },
+      (err, res) =>
+        err
+          ? callback(err)
+          : callback(null, new ArrayCursor(this._connection, res.body))
+    );
+    return promise;
   }
 }
 
-BaseCollection.prototype.isArangoCollection = true
+BaseCollection.prototype.isArangoCollection = true;
 
 class DocumentCollection extends BaseCollection {
-  constructor (...args) {
-    super(...args)
-    this.type = types.DOCUMENT_COLLECTION
+  constructor(...args) {
+    super(...args);
+    this.type = types.DOCUMENT_COLLECTION;
   }
 
-  _documentPath (documentHandle) {
-    return `/document/${this._documentHandle(documentHandle)}`
+  _documentPath(documentHandle) {
+    return `/document/${this._documentHandle(documentHandle)}`;
   }
 
-  document (documentHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  document(documentHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
       this._documentPath(documentHandle),
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  save (data, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  save(data, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof opts === 'boolean') {
-      opts = {returnNew: opts}
+    if (typeof opts === "boolean") {
+      opts = { returnNew: opts };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
 
     if (this._connection.arangoMajor >= 3) {
       this._api.post(
         `/document/${this.name}`,
         data,
         opts,
-        (err, res) => err ? callback(err) : callback(null, res.body)
-      )
+        (err, res) => (err ? callback(err) : callback(null, res.body))
+      );
     } else {
-      if (!opts) opts = {}
-      opts.collection = this.name
+      if (!opts) opts = {};
+      opts.collection = this.name;
 
       this._api.post(
         `/document`,
         data,
         opts,
-        (err, res) => err ? callback(err) : callback(null, res.body)
-      )
+        (err, res) => (err ? callback(err) : callback(null, res.body))
+      );
     }
-    return promise
+    return promise;
   }
 }
 
 class EdgeCollection extends BaseCollection {
-  constructor (...args) {
-    super(...args)
-    this.type = types.EDGE_COLLECTION
+  constructor(...args) {
+    super(...args);
+    this.type = types.EDGE_COLLECTION;
   }
 
-  _documentPath (documentHandle) {
+  _documentPath(documentHandle) {
     if (this._connection.arangoMajor < 3) {
-      return `edge/${this._documentHandle(documentHandle)}`
+      return `edge/${this._documentHandle(documentHandle)}`;
     }
-    return `document/${this._documentHandle(documentHandle)}`
+    return `document/${this._documentHandle(documentHandle)}`;
   }
 
-  edge (documentHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  edge(documentHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
       this._documentPath(documentHandle),
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  save (data, fromId, toId, cb) {
-    if (typeof fromId === 'function') {
-      cb = fromId
-      fromId = undefined
+  save(data, fromId, toId, cb) {
+    if (typeof fromId === "function") {
+      cb = fromId;
+      fromId = undefined;
     } else if (fromId) {
-      data._from = this._documentHandle(fromId)
-      data._to = this._documentHandle(toId)
+      data._from = this._documentHandle(fromId);
+      data._to = this._documentHandle(toId);
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     if (this._connection.arangoMajor < 3) {
       this._api.post(
-        '/edge',
+        "/edge",
         data,
         {
           collection: this.name,
           from: data._from,
           to: data._to
         },
-        (err, res) => err ? callback(err) : callback(null, res.body)
-      )
+        (err, res) => (err ? callback(err) : callback(null, res.body))
+      );
     } else {
       this._api.post(
-        '/document',
+        "/document",
         data,
-        {collection: this.name},
-        (err, res) => err ? callback(err) : callback(null, res.body)
-      )
+        { collection: this.name },
+        (err, res) => (err ? callback(err) : callback(null, res.body))
+      );
     }
-    return promise
+    return promise;
   }
 
-  _edges (documentHandle, direction, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  _edges(documentHandle, direction, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
       `/edges/${this.name}`,
-      {direction, vertex: this._documentHandle(documentHandle)},
-      (err, res) => err ? callback(err) : callback(null, res.body.edges)
-    )
-    return promise
+      { direction, vertex: this._documentHandle(documentHandle) },
+      (err, res) => (err ? callback(err) : callback(null, res.body.edges))
+    );
+    return promise;
   }
 
-  edges (vertex, cb) {
-    return this._edges(vertex, undefined, cb)
+  edges(vertex, cb) {
+    return this._edges(vertex, undefined, cb);
   }
 
-  inEdges (vertex, cb) {
-    return this._edges(vertex, 'in', cb)
+  inEdges(vertex, cb) {
+    return this._edges(vertex, "in", cb);
   }
 
-  outEdges (vertex, cb) {
-    return this._edges(vertex, 'out', cb)
+  outEdges(vertex, cb) {
+    return this._edges(vertex, "out", cb);
   }
 
-  traversal (startVertex, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  traversal(startVertex, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/traversal',
-      {...opts, startVertex, edgeCollection: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-    )
-    return promise
+      "/traversal",
+      { ...opts, startVertex, edgeCollection: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 }
 
-export default function construct (connection, body) {
-  const Collection = (
-    body.type === types.EDGE_COLLECTION
-    ? EdgeCollection
-    : DocumentCollection
-  )
-  return new Collection(connection, body.name)
+export default function construct(connection, body) {
+  const Collection =
+    body.type === types.EDGE_COLLECTION ? EdgeCollection : DocumentCollection;
+  return new Collection(connection, body.name);
 }
 
 export {
@@ -783,4 +784,4 @@ export {
   DocumentCollection,
   BaseCollection as _BaseCollection,
   types as _types
-}
+};
diff --git a/src/connection.js b/src/connection.js
index 1d0290168..13dc3aff7 100644
--- a/src/connection.js
+++ b/src/connection.js
@@ -1,168 +1,185 @@
-import httperr from 'http-errors'
-import qs from 'querystring'
-import btoa from './util/btoa'
-import byteLength from './util/bytelength'
-import promisify from './util/promisify'
-import createRequest, {isBrowser} from './util/request'
-import ArangoError from './error'
-import Route from './route'
-import retry from 'retry'
+import createRequest, { isBrowser } from "./util/request";
 
-const MIME_JSON = /\/(json|javascript)(\W|$)/
+import ArangoError from "./error";
+import Route from "./route";
+import btoa from "./util/btoa";
+import byteLength from "./util/bytelength";
+import httperr from "http-errors";
+import promisify from "./util/promisify";
+import qs from "querystring";
+import retry from "retry";
+
+const MIME_JSON = /\/(json|javascript)(\W|$)/;
 
 export default class Connection {
-  constructor (config) {
-    if (typeof config === 'string') {
-      config = {url: config}
+  constructor(config) {
+    if (typeof config === "string") {
+      config = { url: config };
     }
-    this.config = {...Connection.defaults, ...config}
-    this.config.agentOptions = {...Connection.agentDefaults, ...this.config.agentOptions}
-    if (!this.config.headers) this.config.headers = {}
-    if (!this.config.headers['x-arango-version']) {
-      this.config.headers['x-arango-version'] = this.config.arangoVersion
+    this.config = { ...Connection.defaults, ...config };
+    this.config.agentOptions = {
+      ...Connection.agentDefaults,
+      ...this.config.agentOptions
+    };
+    if (!this.config.headers) this.config.headers = {};
+    if (!this.config.headers["x-arango-version"]) {
+      this.config.headers["x-arango-version"] = this.config.arangoVersion;
     }
-    this.arangoMajor = Math.floor(this.config.arangoVersion / 10000)
-    const {request, auth, url} = createRequest(
+    this.arangoMajor = Math.floor(this.config.arangoVersion / 10000);
+    const { request, auth, url } = createRequest(
       this.config.url,
       this.config.agentOptions,
       this.config.agent
-    )
-    this._baseUrl = url
-    this._request = request
-    if (auth && !this.config.headers['authorization']) {
-      this.config.headers['authorization'] = `Basic ${btoa(auth)}`
+    );
+    this._baseUrl = url;
+    this._request = request;
+    if (auth && !this.config.headers["authorization"]) {
+      this.config.headers["authorization"] = `Basic ${btoa(auth)}`;
     }
     if (this.config.databaseName === false) {
-      this._databasePath = ''
+      this._databasePath = "";
     } else {
-      this._databasePath = `/_db/${this.config.databaseName}`
+      this._databasePath = `/_db/${this.config.databaseName}`;
     }
-    this.promisify = promisify(this.config.promise)
+    this.promisify = promisify(this.config.promise);
     this.retryOptions = {
       forever: this.config.retryConnection,
       retries: 0,
       minTimeout: 5000,
       randomize: true
-    }
+    };
   }
 
-  _buildUrl (opts) {
-    let pathname = ''
-    let search
+  _buildUrl(opts) {
+    let pathname = "";
+    let search;
     if (!opts.absolutePath) {
-      pathname = this._databasePath
-      if (opts.basePath) pathname += opts.basePath
+      pathname = this._databasePath;
+      if (opts.basePath) pathname += opts.basePath;
     }
-    if (opts.path) pathname += opts.path
+    if (opts.path) pathname += opts.path;
     if (opts.qs) {
-      if (typeof opts.qs === 'string') search = `?${opts.qs}`
-      else search = `?${qs.stringify(opts.qs)}`
+      if (typeof opts.qs === "string") search = `?${opts.qs}`;
+      else search = `?${qs.stringify(opts.qs)}`;
     }
-    return search ? {pathname, search} : {pathname}
+    return search ? { pathname, search } : { pathname };
   }
 
-  route (path, headers) {
-    return new Route(this, path, headers)
+  route(path, headers) {
+    return new Route(this, path, headers);
   }
 
-  request (opts, cb) {
-    const {promise, callback} = this.promisify(cb)
-    const expectBinary = opts.expectBinary || false
-    let contentType = 'text/plain'
-    let body = opts.body
+  request(opts, cb) {
+    const { promise, callback } = this.promisify(cb);
+    const expectBinary = opts.expectBinary || false;
+    let contentType = "text/plain";
+    let body = opts.body;
 
     if (body) {
-      if (typeof body === 'object') {
+      if (typeof body === "object") {
         if (opts.ld) {
-          body = body.map((obj) => JSON.stringify(obj)).join('\r\n') + '\r\n'
-          contentType = 'application/x-ldjson'
+          body = body.map(obj => JSON.stringify(obj)).join("\r\n") + "\r\n";
+          contentType = "application/x-ldjson";
         } else {
-          body = JSON.stringify(body)
-          contentType = 'application/json'
+          body = JSON.stringify(body);
+          contentType = "application/json";
         }
       } else {
-        body = String(body)
+        body = String(body);
       }
     } else {
-      body = opts.rawBody
+      body = opts.rawBody;
     }
 
-    if (!opts.headers.hasOwnProperty('content-type')) {
-      opts.headers['content-type'] = contentType
+    if (!opts.headers.hasOwnProperty("content-type")) {
+      opts.headers["content-type"] = contentType;
     }
 
-    if (!isBrowser && !opts.headers.hasOwnProperty('content-length')) {
+    if (!isBrowser && !opts.headers.hasOwnProperty("content-length")) {
       // Can't override content-length in browser but ArangoDB needs it to be set
-      opts.headers['content-length'] = body ? byteLength(body, 'utf-8') : 0
+      opts.headers["content-length"] = body ? byteLength(body, "utf-8") : 0;
     }
 
     for (const key of Object.keys(this.config.headers)) {
       if (!opts.headers.hasOwnProperty(key)) {
-        opts.headers[key] = this.config.headers[key]
+        opts.headers[key] = this.config.headers[key];
       }
     }
 
-    const url = this._buildUrl(opts)
-    const doRequest = this._request
-    const operation = retry.operation(this.retryOptions)
-    operation.attempt(function (currentAttempt) {
-      doRequest({
-        url,
-        headers: opts.headers,
-        method: opts.method,
-        expectBinary,
-        body
-      }, (err, res) => {
-        if (operation.retry(err)) return
-        if (err) callback(err)
-        else {
-          const rawBody = res.body
-          if (res.headers['content-type'].match(MIME_JSON)) {
-            try {
-              if (expectBinary) res.body = res.body.toString('utf-8')
-              res.body = res.body ? JSON.parse(res.body) : undefined
-            } catch (e) {
-              res.body = rawBody
-              e.response = res
-              return callback(e)
+    const url = this._buildUrl(opts);
+    const doRequest = this._request;
+    const operation = retry.operation(this.retryOptions);
+    operation.attempt(function(currentAttempt) {
+      doRequest(
+        {
+          url,
+          headers: opts.headers,
+          method: opts.method,
+          expectBinary,
+          body
+        },
+        (err, res) => {
+          if (operation.retry(err)) return;
+          if (err) callback(err);
+          else {
+            const rawBody = res.body;
+            if (res.headers["content-type"].match(MIME_JSON)) {
+              try {
+                if (expectBinary) res.body = res.body.toString("utf-8");
+                res.body = res.body ? JSON.parse(res.body) : undefined;
+              } catch (e) {
+                res.body = rawBody;
+                e.response = res;
+                return callback(e);
+              }
+            }
+            if (
+              res.body &&
+              res.body.error &&
+              res.body.hasOwnProperty("code") &&
+              res.body.hasOwnProperty("errorMessage") &&
+              res.body.hasOwnProperty("errorNum")
+            ) {
+              err = new ArangoError(res.body);
+              err.response = res;
+              if (
+                currentAttempt === 1 &&
+                err.errorNum === 21 &&
+                operation.retry(err)
+              )
+                return;
+              callback(err);
+            } else if (res.statusCode >= 400) {
+              err = httperr(res.statusCode);
+              err.response = res;
+              if (
+                currentAttempt === 1 &&
+                res.statusCode === 500 &&
+                operation.retry(err)
+              )
+                return;
+              callback(err);
+            } else {
+              if (expectBinary) res.body = rawBody;
+              callback(null, res);
             }
-          }
-          if (
-            res.body &&
-            res.body.error &&
-            res.body.hasOwnProperty('code') &&
-            res.body.hasOwnProperty('errorMessage') &&
-            res.body.hasOwnProperty('errorNum')
-          ) {
-            err = new ArangoError(res.body)
-            err.response = res
-            if (currentAttempt === 1 && err.errorNum === 21 && operation.retry(err)) return
-            callback(err)
-          } else if (res.statusCode >= 400) {
-            err = httperr(res.statusCode)
-            err.response = res
-            if (currentAttempt === 1 && res.statusCode === 500 && operation.retry(err)) return
-            callback(err)
-          } else {
-            if (expectBinary) res.body = rawBody
-            callback(null, res)
           }
         }
-      })
-    })
-    return promise
+      );
+    });
+    return promise;
   }
 }
 
 Connection.defaults = {
-  url: 'http://localhost:8529',
-  databaseName: '_system',
+  url: "http://localhost:8529",
+  databaseName: "_system",
   arangoVersion: 30000,
   retryConnection: false
-}
+};
 
 Connection.agentDefaults = {
   maxSockets: 3,
   keepAlive: true,
   keepAliveMsecs: 1000
-}
+};
diff --git a/src/cursor.js b/src/cursor.js
index 3b8f73d9f..18ae23527 100644
--- a/src/cursor.js
+++ b/src/cursor.js
@@ -1,204 +1,200 @@
 export default class ArrayCursor {
-  constructor (connection, body) {
-    this.extra = body.extra
-    this._connection = connection
-    this._api = this._connection.route('/_api')
-    this._result = body.result
-    this._hasMore = Boolean(body.hasMore)
-    this._id = body.id
-    this.count = body.count
+  constructor(connection, body) {
+    this.extra = body.extra;
+    this._connection = connection;
+    this._api = this._connection.route("/_api");
+    this._result = body.result;
+    this._hasMore = Boolean(body.hasMore);
+    this._id = body.id;
+    this.count = body.count;
   }
 
-  _drain (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
-    this._more((err) => (
-      err ? callback(err) : (
-        !this._hasMore
-        ? callback(null, this)
-        : this._drain(cb)
-      )
-    ))
-    return promise
+  _drain(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
+    this._more(
+      err =>
+        err
+          ? callback(err)
+          : !this._hasMore ? callback(null, this) : this._drain(cb)
+    );
+    return promise;
   }
 
-  _more (callback) {
-    if (!this._hasMore) callback(null, this)
+  _more(callback) {
+    if (!this._hasMore) callback(null, this);
     else {
-      this._api.put(
-        `/cursor/${this._id}`,
-        (err, res) => {
-          if (err) callback(err)
-          else {
-            this._result.push(...res.body.result)
-            this._hasMore = res.body.hasMore
-            callback(null, this)
-          }
+      this._api.put(`/cursor/${this._id}`, (err, res) => {
+        if (err) callback(err);
+        else {
+          this._result.push(...res.body.result);
+          this._hasMore = res.body.hasMore;
+          callback(null, this);
         }
-      )
+      });
     }
   }
 
-  all (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
-    this._drain((err) => {
-      if (err) callback(err)
+  all(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
+    this._drain(err => {
+      if (err) callback(err);
       else {
-        let result = this._result
-        this._result = []
-        callback(null, result)
+        let result = this._result;
+        this._result = [];
+        callback(null, result);
       }
-    })
-    return promise
+    });
+    return promise;
   }
 
-  next (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  next(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     const next = () => {
-      const value = this._result.shift()
-      callback(null, value)
-    }
-    if (this._result.length) next()
+      const value = this._result.shift();
+      callback(null, value);
+    };
+    if (this._result.length) next();
     else {
-      if (!this._hasMore) callback(null)
+      if (!this._hasMore) callback(null);
       else {
-        this._more((err) => err ? callback(err) : next())
+        this._more(err => (err ? callback(err) : next()));
       }
     }
-    return promise
+    return promise;
   }
 
-  hasNext () {
-    return Boolean(this._hasMore || this._result.length)
+  hasNext() {
+    return Boolean(this._hasMore || this._result.length);
   }
 
-  each (fn, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
-    let index = 0
+  each(fn, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
+    let index = 0;
     const loop = () => {
       try {
-        let result
+        let result;
         while (this._result.length) {
-          result = fn(this._result.shift(), index, this)
-          index++
-          if (result === false) break
+          result = fn(this._result.shift(), index, this);
+          index++;
+          if (result === false) break;
         }
-        if (!this._hasMore || result === false) callback(null, result)
+        if (!this._hasMore || result === false) callback(null, result);
         else {
-          this._more((err) => err ? callback(err) : loop())
+          this._more(err => (err ? callback(err) : loop()));
         }
       } catch (e) {
-        callback(e)
+        callback(e);
       }
-    }
-    loop()
-    return promise
+    };
+    loop();
+    return promise;
   }
 
-  every (fn, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
-    let index = 0
+  every(fn, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
+    let index = 0;
     const loop = () => {
       try {
-        let result = true
+        let result = true;
         while (this._result.length) {
-          result = fn(this._result.shift(), index, this)
-          index++
-          if (!result) break
+          result = fn(this._result.shift(), index, this);
+          index++;
+          if (!result) break;
         }
-        if (!this._hasMore || !result) callback(null, Boolean(result))
+        if (!this._hasMore || !result) callback(null, Boolean(result));
         else {
-          this._more((err) => err ? callback(err) : loop())
+          this._more(err => (err ? callback(err) : loop()));
         }
       } catch (e) {
-        callback(e)
+        callback(e);
       }
-    }
-    loop()
-    return promise
+    };
+    loop();
+    return promise;
   }
 
-  some (fn, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
-    let index = 0
+  some(fn, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
+    let index = 0;
     const loop = () => {
       try {
-        let result = false
+        let result = false;
         while (this._result.length) {
-          result = fn(this._result.shift(), index, this)
-          index++
-          if (result) break
+          result = fn(this._result.shift(), index, this);
+          index++;
+          if (result) break;
         }
-        if (!this._hasMore || result) callback(null, Boolean(result))
+        if (!this._hasMore || result) callback(null, Boolean(result));
         else {
-          this._more((err) => err ? callback(err) : loop())
+          this._more(err => (err ? callback(err) : loop()));
         }
       } catch (e) {
-        callback(e)
+        callback(e);
       }
-    }
-    loop()
-    return promise
+    };
+    loop();
+    return promise;
   }
 
-  map (fn, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
-    let index = 0
-    const result = []
+  map(fn, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
+    let index = 0;
+    const result = [];
     const loop = () => {
       try {
         while (this._result.length) {
-          result.push(fn(this._result.shift(), index, this))
-          index++
+          result.push(fn(this._result.shift(), index, this));
+          index++;
         }
-        if (!this._hasMore) callback(null, result)
+        if (!this._hasMore) callback(null, result);
         else {
-          this._more((err) => err ? callback(err) : loop())
+          this._more(err => (err ? callback(err) : loop()));
         }
       } catch (e) {
-        callback(e)
+        callback(e);
       }
-    }
-    loop()
-    return promise
+    };
+    loop();
+    return promise;
   }
 
-  reduce (fn, accu, cb) {
-    if (typeof accu === 'function') {
-      cb = accu
-      accu = undefined
+  reduce(fn, accu, cb) {
+    if (typeof accu === "function") {
+      cb = accu;
+      accu = undefined;
     }
-    let index = 0
-    const {promise, callback} = this._connection.promisify(cb)
+    let index = 0;
+    const { promise, callback } = this._connection.promisify(cb);
     const loop = () => {
       try {
         while (this._result.length) {
-          accu = fn(accu, this._result.shift(), index, this)
-          index++
+          accu = fn(accu, this._result.shift(), index, this);
+          index++;
         }
-        if (!this._hasMore) callback(null, accu)
+        if (!this._hasMore) callback(null, accu);
         else {
-          this._more((err) => err ? callback(err) : loop())
+          this._more(err => (err ? callback(err) : loop()));
         }
       } catch (e) {
-        callback(e)
+        callback(e);
       }
-    }
+    };
     if (accu !== undefined) {
-      loop()
+      loop();
     } else if (this._result.length > 1) {
-      accu = this._result.shift()
-      index = 1
-      loop()
+      accu = this._result.shift();
+      index = 1;
+      loop();
     } else {
-      this._more((err) => {
-        if (err) callback(err)
+      this._more(err => {
+        if (err) callback(err);
         else {
-          accu = this._result.shift()
-          index = 1
-          loop()
+          accu = this._result.shift();
+          index = 1;
+          loop();
         }
-      })
+      });
     }
-    return promise
+    return promise;
   }
 }
diff --git a/src/database.js b/src/database.js
index 3c4377b4b..53cf8ede8 100644
--- a/src/database.js
+++ b/src/database.js
@@ -1,419 +1,450 @@
 import constructCollection, {
   DocumentCollection,
   EdgeCollection
-} from './collection'
+} from "./collection";
 
-import ArrayCursor from './cursor'
-import Connection from './connection'
-import Graph from './graph'
-import all from './util/all'
-import btoa from './util/btoa'
-import toForm from './util/multipart'
+import ArrayCursor from "./cursor";
+import Connection from "./connection";
+import Graph from "./graph";
+import all from "./util/all";
+import btoa from "./util/btoa";
+import toForm from "./util/multipart";
 
 export default class Database {
-  constructor (config) {
-    this._connection = new Connection(config)
-    this._api = this._connection.route('/_api')
-    this.name = this._connection.config.databaseName
+  constructor(config) {
+    this._connection = new Connection(config);
+    this._api = this._connection.route("/_api");
+    this.name = this._connection.config.databaseName;
   }
 
-  route (path, headers) {
-    return this._connection.route(path, headers)
+  route(path, headers) {
+    return this._connection.route(path, headers);
   }
 
   // Database manipulation
 
-  useDatabase (databaseName) {
+  useDatabase(databaseName) {
     if (this._connection.config.databaseName === false) {
-      throw new Error('Can not change database from absolute URL')
+      throw new Error("Can not change database from absolute URL");
     }
-    this._connection.config.databaseName = databaseName
-    this._connection._databasePath = `/_db/${databaseName}`
-    this.name = databaseName
-    return this
+    this._connection.config.databaseName = databaseName;
+    this._connection._databasePath = `/_db/${databaseName}`;
+    this.name = databaseName;
+    return this;
   }
 
-  useBearerAuth (token) {
-    this._connection.config.headers['authorization'] = `Bearer ${token}`
-    return this
+  useBearerAuth(token) {
+    this._connection.config.headers["authorization"] = `Bearer ${token}`;
+    return this;
   }
 
-  useBasicAuth (username, password) {
-    this._connection.config.headers['authorization'] = `Basic ${btoa(`${username || 'root'}:${password || ''}`)}`
-    return this
+  useBasicAuth(username, password) {
+    this._connection.config.headers["authorization"] = `Basic ${btoa(
+      `${username || "root"}:${password || ""}`
+    )}`;
+    return this;
   }
 
-  get (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  get(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/database/current',
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-    )
-    return promise
+      "/database/current",
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 
-  createDatabase (databaseName, users, cb) {
-    if (typeof users === 'function') {
-      cb = users
-      users = undefined
+  createDatabase(databaseName, users, cb) {
+    if (typeof users === "function") {
+      cb = users;
+      users = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/database',
-      {users, name: databaseName},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/database",
+      { users, name: databaseName },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  listDatabases (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  listDatabases(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/database',
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-    )
-    return promise
+      "/database",
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 
-  listUserDatabases (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  listUserDatabases(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/database/user',
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-    )
-    return promise
+      "/database/user",
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 
-  dropDatabase (databaseName, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  dropDatabase(databaseName, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.delete(
       `/database/${databaseName}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
   // Collection manipulation
 
-  collection (collectionName) {
-    return new DocumentCollection(this._connection, collectionName)
+  collection(collectionName) {
+    return new DocumentCollection(this._connection, collectionName);
   }
 
-  edgeCollection (collectionName) {
-    return new EdgeCollection(this._connection, collectionName)
+  edgeCollection(collectionName) {
+    return new EdgeCollection(this._connection, collectionName);
   }
 
-  listCollections (excludeSystem, cb) {
-    if (typeof excludeSystem === 'function') {
-      cb = excludeSystem
-      excludeSystem = undefined
+  listCollections(excludeSystem, cb) {
+    if (typeof excludeSystem === "function") {
+      cb = excludeSystem;
+      excludeSystem = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    if (typeof excludeSystem !== 'boolean') excludeSystem = true
-    const resultField = (
-      this._connection.arangoMajor < 3
-      ? 'collections'
-      : 'result'
-    )
+    const { promise, callback } = this._connection.promisify(cb);
+    if (typeof excludeSystem !== "boolean") excludeSystem = true;
+    const resultField =
+      this._connection.arangoMajor < 3 ? "collections" : "result";
     this._api.get(
-      '/collection',
-      {excludeSystem},
-      (err, res) => err ? callback(err) : callback(null, res.body[resultField])
-    )
-    return promise
+      "/collection",
+      { excludeSystem },
+      (err, res) =>
+        err ? callback(err) : callback(null, res.body[resultField])
+    );
+    return promise;
   }
 
-  collections (excludeSystem, cb) {
-    if (typeof excludeSystem === 'function') {
-      cb = excludeSystem
-      excludeSystem = undefined
+  collections(excludeSystem, cb) {
+    if (typeof excludeSystem === "function") {
+      cb = excludeSystem;
+      excludeSystem = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this.listCollections(
       excludeSystem,
-      (err, collections) => (
+      (err, collections) =>
         err
-        ? callback(err)
-        : callback(null, collections.map((info) => constructCollection(this._connection, info)))
-      )
-    )
-    return promise
-  }
-
-  truncate (excludeSystem, cb) {
-    if (typeof excludeSystem === 'function') {
-      cb = excludeSystem
-    }
-    const {promise, callback} = this._connection.promisify(cb)
+          ? callback(err)
+          : callback(
+              null,
+              collections.map(info =>
+                constructCollection(this._connection, info)
+              )
+            )
+    );
+    return promise;
+  }
+
+  truncate(excludeSystem, cb) {
+    if (typeof excludeSystem === "function") {
+      cb = excludeSystem;
+    }
+    const { promise, callback } = this._connection.promisify(cb);
     this.listCollections(
       true,
-      (err, collections) => (
+      (err, collections) =>
         err
-        ? callback(err)
-        : all(collections.map((data) => (cb) => this._api.put(
-            `/collection/${data.name}/truncate`,
-            (err, res) => err ? cb(err) : cb(null, res.body)
-        )), callback)
-      )
-    )
-    return promise
+          ? callback(err)
+          : all(
+              collections.map(data => cb =>
+                this._api.put(
+                  `/collection/${data.name}/truncate`,
+                  (err, res) => (err ? cb(err) : cb(null, res.body))
+                )
+              ),
+              callback
+            )
+    );
+    return promise;
   }
 
   // Graph manipulation
 
-  graph (graphName) {
-    return new Graph(this._connection, graphName)
+  graph(graphName) {
+    return new Graph(this._connection, graphName);
   }
 
-  listGraphs (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  listGraphs(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/gharial',
-      (err, res) => err ? callback(err) : callback(null, res.body.graphs)
-    )
-    return promise
+      "/gharial",
+      (err, res) => (err ? callback(err) : callback(null, res.body.graphs))
+    );
+    return promise;
   }
 
-  graphs (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  graphs(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this.listGraphs(
-      (err, graphs) => err ? callback(err) : callback(null, graphs.map((info) => this.graph(info._key)))
-    )
-    return promise
+      (err, graphs) =>
+        err
+          ? callback(err)
+          : callback(null, graphs.map(info => this.graph(info._key)))
+    );
+    return promise;
   }
 
   // Queries
 
-  transaction (collections, action, params, lockTimeout, cb) {
-    if (typeof lockTimeout === 'function') {
-      cb = lockTimeout
-      lockTimeout = undefined
+  transaction(collections, action, params, lockTimeout, cb) {
+    if (typeof lockTimeout === "function") {
+      cb = lockTimeout;
+      lockTimeout = undefined;
     }
-    if (typeof params === 'function') {
-      cb = params
-      params = undefined
+    if (typeof params === "function") {
+      cb = params;
+      params = undefined;
     }
-    if (typeof params === 'number') {
-      lockTimeout = params
-      params = undefined
+    if (typeof params === "number") {
+      lockTimeout = params;
+      params = undefined;
     }
-    if (typeof collections === 'string' || Array.isArray(collections)) {
-      collections = {write: collections}
+    if (typeof collections === "string" || Array.isArray(collections)) {
+      collections = { write: collections };
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/transaction',
-      {collections, action, params, lockTimeout},
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-  )
-    return promise
+      "/transaction",
+      { collections, action, params, lockTimeout },
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 
-  query (query, bindVars, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  query(query, bindVars, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    if (typeof bindVars === 'function') {
-      cb = bindVars
-      bindVars = undefined
+    if (typeof bindVars === "function") {
+      cb = bindVars;
+      bindVars = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     if (query && query.query) {
-      if (!opts) opts = bindVars
-      bindVars = query.bindVars
-      query = query.query
+      if (!opts) opts = bindVars;
+      bindVars = query.bindVars;
+      query = query.query;
     }
-    if (query && typeof query.toAQL === 'function') {
-      query = query.toAQL()
+    if (query && typeof query.toAQL === "function") {
+      query = query.toAQL();
     }
     this._api.post(
-      '/cursor',
-      {...opts, query, bindVars},
-      (err, res) => err ? callback(err) : callback(null, new ArrayCursor(this._connection, res.body))
-    )
-    return promise
+      "/cursor",
+      { ...opts, query, bindVars },
+      (err, res) =>
+        err
+          ? callback(err)
+          : callback(null, new ArrayCursor(this._connection, res.body))
+    );
+    return promise;
   }
 
   // Function management
 
-  listFunctions (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  listFunctions(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/aqlfunction',
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/aqlfunction",
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  createFunction (name, code, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  createFunction(name, code, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/aqlfunction',
-      {name, code},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/aqlfunction",
+      { name, code },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  dropFunction (name, group, cb) {
-    if (typeof group === 'function') {
-      cb = group
-      group = undefined
+  dropFunction(name, group, cb) {
+    if (typeof group === "function") {
+      cb = group;
+      group = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.delete(
       `/aqlfunction/${name}`,
-      {group: Boolean(group)},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      { group: Boolean(group) },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
   // Service management
 
-  listServices (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  listServices(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/foxx',
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
-  }
-
-  installService (mount, source, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
-    }
-    const {configuration, dependencies, ...qs} = opts || {}
-    const {promise, callback} = this._connection.promisify(cb)
-    toForm({
-      configuration,
-      dependencies,
-      source
-    }, (err, req) => err ? callback(err) : (
-      this._api.request({
-        method: 'POST',
-        path: '/foxx',
-        rawBody: req.body,
-        qs: {...qs, mount},
-        headers: req.headers
-      }, (err, res) => err ? callback(err) : callback(null, res.body))
-    ))
-    return promise
-  }
-
-  upgradeService (mount, source, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
-    }
-    const {configuration, dependencies, ...qs} = opts || {}
-    const {promise, callback} = this._connection.promisify(cb)
-    toForm({
-      configuration,
-      dependencies,
-      source
-    }, (err, req) => err ? callback(err) : (
-      this._api.request({
-        method: 'PATCH',
-        path: '/foxx/service',
-        rawBody: req.body,
-        qs: {...qs, mount},
-        headers: req.headers
-      }, (err, res) => err ? callback(err) : callback(null, res.body))
-    ))
-    return promise
-  }
-
-  replaceService (mount, source, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
-    }
-    const {configuration, dependencies, ...qs} = opts || {}
-    const {promise, callback} = this._connection.promisify(cb)
-    toForm({
-      configuration,
-      dependencies,
-      source
-    }, (err, req) => err ? callback(err) : (
-      this._api.request({
-        method: 'PUT',
-        path: '/foxx/service',
-        rawBody: req.body,
-        qs: {...qs, mount},
-        headers: req.headers
-      }, (err, res) => err ? callback(err) : callback(null, res.body))
-    ))
-    return promise
-  }
-
-  uninstallService (mount, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
-    }
-    const {promise, callback} = this._connection.promisify(cb)
+      "/foxx",
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
+  }
+
+  installService(mount, source, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
+    }
+    const { configuration, dependencies, ...qs } = opts || {};
+    const { promise, callback } = this._connection.promisify(cb);
+    toForm(
+      {
+        configuration,
+        dependencies,
+        source
+      },
+      (err, req) =>
+        err
+          ? callback(err)
+          : this._api.request(
+              {
+                method: "POST",
+                path: "/foxx",
+                rawBody: req.body,
+                qs: { ...qs, mount },
+                headers: req.headers
+              },
+              (err, res) => (err ? callback(err) : callback(null, res.body))
+            )
+    );
+    return promise;
+  }
+
+  upgradeService(mount, source, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
+    }
+    const { configuration, dependencies, ...qs } = opts || {};
+    const { promise, callback } = this._connection.promisify(cb);
+    toForm(
+      {
+        configuration,
+        dependencies,
+        source
+      },
+      (err, req) =>
+        err
+          ? callback(err)
+          : this._api.request(
+              {
+                method: "PATCH",
+                path: "/foxx/service",
+                rawBody: req.body,
+                qs: { ...qs, mount },
+                headers: req.headers
+              },
+              (err, res) => (err ? callback(err) : callback(null, res.body))
+            )
+    );
+    return promise;
+  }
+
+  replaceService(mount, source, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
+    }
+    const { configuration, dependencies, ...qs } = opts || {};
+    const { promise, callback } = this._connection.promisify(cb);
+    toForm(
+      {
+        configuration,
+        dependencies,
+        source
+      },
+      (err, req) =>
+        err
+          ? callback(err)
+          : this._api.request(
+              {
+                method: "PUT",
+                path: "/foxx/service",
+                rawBody: req.body,
+                qs: { ...qs, mount },
+                headers: req.headers
+              },
+              (err, res) => (err ? callback(err) : callback(null, res.body))
+            )
+    );
+    return promise;
+  }
+
+  uninstallService(mount, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
+    }
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.delete(
-      '/foxx/service',
-      {...opts, mount},
-      (err) => err ? callback(err) : callback(null)
-    )
-    return promise
+      "/foxx/service",
+      { ...opts, mount },
+      err => (err ? callback(err) : callback(null))
+    );
+    return promise;
   }
 
-  getService (mount, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  getService(mount, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/foxx/service',
-      {mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/foxx/service",
+      { mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  getServiceConfiguration (mount, minimal, cb) {
-    if (typeof minimal === 'function') {
-      cb = minimal
-      minimal = undefined
+  getServiceConfiguration(mount, minimal, cb) {
+    if (typeof minimal === "function") {
+      cb = minimal;
+      minimal = undefined;
     }
-    if (typeof minimal !== 'boolean') {
+    if (typeof minimal !== "boolean") {
       minimal = false;
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    this._api.get(
-      '/foxx/configuration',
-      {mount, minimal},
-      (err, res) => {
-        if (err) return callback(err);
-        if (minimal) {
-          const values = {};
-          for (const key of Object.keys(res.body)) {
-            values[key] = res.body[key].current;
-          }
-          res.body = {values};
+    const { promise, callback } = this._connection.promisify(cb);
+    this._api.get("/foxx/configuration", { mount, minimal }, (err, res) => {
+      if (err) return callback(err);
+      if (minimal) {
+        const values = {};
+        for (const key of Object.keys(res.body)) {
+          values[key] = res.body[key].current;
         }
-        callback(null, res.body);
+        res.body = { values };
       }
-    )
-    return promise
+      callback(null, res.body);
+    });
+    return promise;
   }
 
-  updateServiceConfiguration (mount, cfg, minimal, cb) {
-    if (typeof minimal === 'function') {
-      cb = minimal
-      minimal = undefined
+  updateServiceConfiguration(mount, cfg, minimal, cb) {
+    if (typeof minimal === "function") {
+      cb = minimal;
+      minimal = undefined;
     }
-    if (typeof minimal !== 'boolean') {
+    if (typeof minimal !== "boolean") {
       minimal = false;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.patch(
-      '/foxx/configuration',
+      "/foxx/configuration",
       cfg,
-      {mount, minimal},
+      { mount, minimal },
       (err, res) => {
         if (err) return callback(err);
         let body = res.body;
@@ -421,7 +452,7 @@ export default class Database {
           return callback(null, body);
         }
         this.getServiceConfiguration(mount, minimal, (err, res) => {
-          if (err) return callback(err)
+          if (err) return callback(err);
           if (body.warnings) {
             for (const key of Object.keys(res)) {
               res.body[key].warning = body.warnings[key];
@@ -430,23 +461,23 @@ export default class Database {
           callback(null, res.body);
         });
       }
-    )
-    return promise
+    );
+    return promise;
   }
 
-  replaceServiceConfiguration (mount, cfg, minimal, cb) {
-    if (typeof minimal === 'function') {
-      cb = minimal
-      minimal = undefined
+  replaceServiceConfiguration(mount, cfg, minimal, cb) {
+    if (typeof minimal === "function") {
+      cb = minimal;
+      minimal = undefined;
     }
-    if (typeof minimal !== 'boolean') {
+    if (typeof minimal !== "boolean") {
       minimal = false;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.put(
-      '/foxx/configuration',
+      "/foxx/configuration",
       cfg,
-      {mount, minimal},
+      { mount, minimal },
       (err, res) => {
         if (err) return callback(err);
         let body = res.body;
@@ -454,7 +485,7 @@ export default class Database {
           return callback(null, body);
         }
         this.getServiceConfiguration(mount, minimal, (err, res) => {
-          if (err) return callback(err)
+          if (err) return callback(err);
           if (body.warnings) {
             for (const key of Object.keys(res)) {
               res.body[key].warning = body.warnings[key];
@@ -463,50 +494,46 @@ export default class Database {
           callback(null, res.body);
         });
       }
-    )
-    return promise
+    );
+    return promise;
   }
 
-  getServiceDependencies (mount, minimal, cb) {
-    if (typeof minimal === 'function') {
-      cb = minimal
-      minimal = undefined
+  getServiceDependencies(mount, minimal, cb) {
+    if (typeof minimal === "function") {
+      cb = minimal;
+      minimal = undefined;
     }
-    if (typeof minimal !== 'boolean') {
+    if (typeof minimal !== "boolean") {
       minimal = false;
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    this._api.get(
-      '/foxx/dependencies',
-      {mount, minimal},
-      (err, res) => {
-        if (err) return callback(err);
-        if (minimal) {
-          const values = {};
-          for (const key of Object.keys(res.body)) {
-            values[key] = res.body[key].current;
-          }
-          res.body = {values};
+    const { promise, callback } = this._connection.promisify(cb);
+    this._api.get("/foxx/dependencies", { mount, minimal }, (err, res) => {
+      if (err) return callback(err);
+      if (minimal) {
+        const values = {};
+        for (const key of Object.keys(res.body)) {
+          values[key] = res.body[key].current;
         }
-        callback(null, res.body);
+        res.body = { values };
       }
-    )
-    return promise
+      callback(null, res.body);
+    });
+    return promise;
   }
 
-  updateServiceDependencies (mount, cfg, minimal, cb) {
-    if (typeof minimal === 'function') {
-      cb = minimal
-      minimal = undefined
+  updateServiceDependencies(mount, cfg, minimal, cb) {
+    if (typeof minimal === "function") {
+      cb = minimal;
+      minimal = undefined;
     }
-    if (typeof minimal !== 'boolean') {
+    if (typeof minimal !== "boolean") {
       minimal = false;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.patch(
-      '/foxx/dependencies',
+      "/foxx/dependencies",
       cfg,
-      {mount, minimal},
+      { mount, minimal },
       (err, res) => {
         if (err) return callback(err);
         let body = res.body;
@@ -514,7 +541,7 @@ export default class Database {
           return callback(null, body);
         }
         this.getServiceDependencies(mount, minimal, (err, res) => {
-          if (err) return callback(err)
+          if (err) return callback(err);
           if (body.warnings) {
             for (const key of Object.keys(res)) {
               res.body[key].warning = body.warnings[key];
@@ -523,145 +550,145 @@ export default class Database {
           callback(null, res.body);
         });
       }
-    )
-    return promise
+    );
+    return promise;
   }
 
-  replaceServiceDependencies (mount, cfg, minimal, cb) {
-    if (typeof minimal === 'function') {
-      cb = minimal
-      minimal = undefined
+  replaceServiceDependencies(mount, cfg, minimal, cb) {
+    if (typeof minimal === "function") {
+      cb = minimal;
+      minimal = undefined;
     }
-    if (typeof minimal !== 'boolean') {
+    if (typeof minimal !== "boolean") {
       minimal = false;
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    this._api.put(
-      '/foxx/dependencies',
-      cfg,
-      {mount, minimal},
-      (err, res) => {
+    const { promise, callback } = this._connection.promisify(cb);
+    this._api.put("/foxx/dependencies", cfg, { mount, minimal }, (err, res) => {
+      if (err) return callback(err);
+      let body = res.body;
+      if (minimal || !body.values || !body.values.title) {
+        return callback(null, body);
+      }
+      this.getServiceDependencies(mount, minimal, (err, res) => {
         if (err) return callback(err);
-        let body = res.body;
-        if (minimal || !body.values || !body.values.title) {
-          return callback(null, body);
-        }
-        this.getServiceDependencies(mount, minimal, (err, res) => {
-          if (err) return callback(err)
-          if (body.warnings) {
-            for (const key of Object.keys(res)) {
-              res.body[key].warning = body.warnings[key];
-            }
+        if (body.warnings) {
+          for (const key of Object.keys(res)) {
+            res.body[key].warning = body.warnings[key];
           }
-          callback(null, res.body);
-        });
-      }
-    )
-    return promise
+        }
+        callback(null, res.body);
+      });
+    });
+    return promise;
   }
 
-  enableServiceDevelopmentMode (mount, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  enableServiceDevelopmentMode(mount, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/foxx/development',
+      "/foxx/development",
       undefined,
-      {mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      { mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  disableServiceDevelopmentMode (mount, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  disableServiceDevelopmentMode(mount, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.delete(
-      '/foxx/development',
-      {mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/foxx/development",
+      { mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  listServiceScripts (mount, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  listServiceScripts(mount, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/foxx/scripts',
-      {mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/foxx/scripts",
+      { mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  runServiceScript (mount, name, args, cb) {
-    if (typeof args === 'function') {
-      cb = args
-      args = undefined
+  runServiceScript(mount, name, args, cb) {
+    if (typeof args === "function") {
+      cb = args;
+      args = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
       `/foxx/scripts/${name}`,
       args,
-      {mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      { mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  runServiceTests (mount, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  runServiceTests(mount, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/foxx/tests',
+      "/foxx/tests",
       undefined,
-      {...opts, mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      { ...opts, mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  getServiceReadme (mount, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  getServiceReadme(mount, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/foxx/readme',
-      {mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/foxx/readme",
+      { mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  getServiceDocumentation (mount, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  getServiceDocumentation(mount, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.get(
-      '/foxx/swagger',
-      {mount},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      "/foxx/swagger",
+      { mount },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  downloadService (mount, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  downloadService(mount, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.request(
-      {method: 'POST', path: '/foxx/download', qs: {mount}, expectBinary: true},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
-  }
-
-  commitLocalServiceState (replace, cb) {
-    if (typeof replace === 'function') {
-      cb = replace
-      replace = undefined
-    }
-    const {promise, callback} = this._connection.promisify(cb)
+      {
+        method: "POST",
+        path: "/foxx/download",
+        qs: { mount },
+        expectBinary: true
+      },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
+  }
+
+  commitLocalServiceState(replace, cb) {
+    if (typeof replace === "function") {
+      cb = replace;
+      replace = undefined;
+    }
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/foxx/commit',
+      "/foxx/commit",
       undefined,
-      {replace},
-      (err, res) => err ? callback(err) : callback(null)
-    )
-    return promise
+      { replace },
+      (err, res) => (err ? callback(err) : callback(null))
+    );
+    return promise;
   }
 }
diff --git a/src/error.js b/src/error.js
index 719768567..aca7c6d66 100644
--- a/src/error.js
+++ b/src/error.js
@@ -1,21 +1,21 @@
-import ExtendableError from 'es6-error'
+import ExtendableError from "es6-error";
 
 export default class ArangoError extends ExtendableError {
-  constructor (obj) {
-    super()
-    this.message = obj.errorMessage
-    this.errorNum = obj.errorNum
-    this.code = obj.code
-    const err = new Error(this.message)
-    err.name = this.name
-    if (err.fileName) this.fileName = err.fileName
-    if (err.lineNumber) this.lineNumber = err.lineNumber
-    if (err.columnNumber) this.columnNumber = err.columnNumber
-    if (err.stack) this.stack = err.stack
-    if (err.description) this.description = err.description
-    if (err.number) this.number = err.number
+  constructor(obj) {
+    super();
+    this.message = obj.errorMessage;
+    this.errorNum = obj.errorNum;
+    this.code = obj.code;
+    const err = new Error(this.message);
+    err.name = this.name;
+    if (err.fileName) this.fileName = err.fileName;
+    if (err.lineNumber) this.lineNumber = err.lineNumber;
+    if (err.columnNumber) this.columnNumber = err.columnNumber;
+    if (err.stack) this.stack = err.stack;
+    if (err.description) this.description = err.description;
+    if (err.number) this.number = err.number;
   }
 }
 
-ArangoError.prototype.name = 'ArangoError'
-ArangoError.prototype.isArangoError = true
+ArangoError.prototype.name = "ArangoError";
+ArangoError.prototype.isArangoError = true;
diff --git a/src/graph.js b/src/graph.js
index f4d82a452..e2a36ba21 100644
--- a/src/graph.js
+++ b/src/graph.js
@@ -1,222 +1,222 @@
 import {
-  EdgeCollection,
   _BaseCollection as BaseCollection,
+  EdgeCollection,
   _types as types
-} from './collection'
+} from "./collection";
 
 class GraphVertexCollection extends BaseCollection {
-  constructor (connection, name, graph) {
-    super(connection, name)
-    this.type = types.DOCUMENT_COLLECTION
-    this.graph = graph
-    this._gharial = this._api.route(`/gharial/${this.graph.name}/vertex`)
+  constructor(connection, name, graph) {
+    super(connection, name);
+    this.type = types.DOCUMENT_COLLECTION;
+    this.graph = graph;
+    this._gharial = this._api.route(`/gharial/${this.graph.name}/vertex`);
   }
 
-  _documentPath (documentHandle) {
-    return `/document/${this._documentHandle(documentHandle)}`
+  _documentPath(documentHandle) {
+    return `/document/${this._documentHandle(documentHandle)}`;
   }
 
-  remove (documentHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  remove(documentHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.delete(
       `/${this._documentHandle(documentHandle)}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  vertex (documentHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  vertex(documentHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.get(
       `/${this._documentHandle(documentHandle)}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  save (data, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  save(data, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.post(
       this.name,
       data,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 }
 
 class GraphEdgeCollection extends EdgeCollection {
-  constructor (connection, name, graph) {
-    super(connection, name)
-    this.type = types.EDGE_COLLECTION
-    this.graph = graph
-    this._gharial = this._api.route(`/gharial/${this.graph.name}/edge`)
+  constructor(connection, name, graph) {
+    super(connection, name);
+    this.type = types.EDGE_COLLECTION;
+    this.graph = graph;
+    this._gharial = this._api.route(`/gharial/${this.graph.name}/edge`);
   }
 
-  remove (documentHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  remove(documentHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.delete(
       `/${this._documentHandle(documentHandle)}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  edge (documentHandle, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  edge(documentHandle, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.get(
       `/${this._documentHandle(documentHandle)}`,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  save (data, fromId, toId, cb) {
-    if (typeof fromId === 'function') {
-      cb = fromId
-      fromId = undefined
+  save(data, fromId, toId, cb) {
+    if (typeof fromId === "function") {
+      cb = fromId;
+      fromId = undefined;
     } else if (fromId) {
-      data._from = this._documentHandle(fromId)
-      data._to = this._documentHandle(toId)
+      data._from = this._documentHandle(fromId);
+      data._to = this._documentHandle(toId);
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.post(
       this.name,
       data,
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 }
 
 export default class Graph {
-  constructor (connection, name) {
-    this.name = name
-    this._connection = connection
-    this._api = this._connection.route('/_api')
-    this._gharial = this._api.route(`/gharial/${this.name}`)
+  constructor(connection, name) {
+    this.name = name;
+    this._connection = connection;
+    this._api = this._connection.route("/_api");
+    this._gharial = this._api.route(`/gharial/${this.name}`);
   }
 
-  get (cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  get(cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.get(
-      (err, res) => err ? callback(err) : callback(null, res.body.graph)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body.graph))
+    );
+    return promise;
   }
 
-  create (properties, cb) {
-    if (typeof properties === 'function') {
-      cb = properties
-      properties = undefined
+  create(properties, cb) {
+    if (typeof properties === "function") {
+      cb = properties;
+      properties = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/gharial',
-      {...properties, name: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.graph)
-    )
-    return promise
+      "/gharial",
+      { ...properties, name: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.graph))
+    );
+    return promise;
   }
 
-  drop (dropCollections, cb) {
-    if (typeof dropCollections === 'function') {
-      cb = dropCollections
-      dropCollections = undefined
+  drop(dropCollections, cb) {
+    if (typeof dropCollections === "function") {
+      cb = dropCollections;
+      dropCollections = undefined;
     }
-    if (typeof dropCollections !== 'boolean') dropCollections = false
-    const {promise, callback} = this._connection.promisify(cb)
+    if (typeof dropCollections !== "boolean") dropCollections = false;
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.delete(
-      {dropCollections},
-      (err, res) => err ? callback(err) : callback(null, res.body)
-    )
-    return promise
+      { dropCollections },
+      (err, res) => (err ? callback(err) : callback(null, res.body))
+    );
+    return promise;
   }
 
-  vertexCollection (collectionName) {
-    return new GraphVertexCollection(this._connection, collectionName, this)
+  vertexCollection(collectionName) {
+    return new GraphVertexCollection(this._connection, collectionName, this);
   }
 
-  addVertexCollection (collectionName, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  addVertexCollection(collectionName, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.post(
-      '/vertex',
-      {collection: collectionName},
-      (err, res) => err ? callback(err) : callback(null, res.body.graph)
-    )
-    return promise
+      "/vertex",
+      { collection: collectionName },
+      (err, res) => (err ? callback(err) : callback(null, res.body.graph))
+    );
+    return promise;
   }
 
-  removeVertexCollection (collectionName, dropCollection, cb) {
-    if (typeof dropCollection === 'function') {
-      cb = dropCollection
-      dropCollection = undefined
+  removeVertexCollection(collectionName, dropCollection, cb) {
+    if (typeof dropCollection === "function") {
+      cb = dropCollection;
+      dropCollection = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    if (typeof dropCollection !== 'boolean') dropCollection = false
+    const { promise, callback } = this._connection.promisify(cb);
+    if (typeof dropCollection !== "boolean") dropCollection = false;
     this._gharial.delete(
       `/vertex/${collectionName}`,
-      {dropCollection},
-      (err, res) => err ? callback(err) : callback(null, res.body.graph)
-    )
-    return promise
+      { dropCollection },
+      (err, res) => (err ? callback(err) : callback(null, res.body.graph))
+    );
+    return promise;
   }
 
-  edgeCollection (collectionName) {
-    return new GraphEdgeCollection(this._connection, collectionName, this)
+  edgeCollection(collectionName) {
+    return new GraphEdgeCollection(this._connection, collectionName, this);
   }
 
-  addEdgeDefinition (definition, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  addEdgeDefinition(definition, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.post(
-      '/edge',
+      "/edge",
       definition,
-      (err, res) => err ? callback(err) : callback(null, res.body.graph)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body.graph))
+    );
+    return promise;
   }
 
-  replaceEdgeDefinition (definitionName, definition, cb) {
-    const {promise, callback} = this._connection.promisify(cb)
+  replaceEdgeDefinition(definitionName, definition, cb) {
+    const { promise, callback } = this._connection.promisify(cb);
     this._gharial.put(
       `/edge/${definitionName}`,
       definition,
-      (err, res) => err ? callback(err) : callback(null, res.body.graph)
-    )
-    return promise
+      (err, res) => (err ? callback(err) : callback(null, res.body.graph))
+    );
+    return promise;
   }
 
-  removeEdgeDefinition (definitionName, dropCollection, cb) {
-    if (typeof dropCollection === 'function') {
-      cb = dropCollection
-      dropCollection = undefined
+  removeEdgeDefinition(definitionName, dropCollection, cb) {
+    if (typeof dropCollection === "function") {
+      cb = dropCollection;
+      dropCollection = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
-    if (typeof dropCollection !== 'boolean') dropCollection = false
+    const { promise, callback } = this._connection.promisify(cb);
+    if (typeof dropCollection !== "boolean") dropCollection = false;
     this._gharial.delete(
       `edge/${definitionName}`,
-      {dropCollection},
-      (err, res) => err ? callback(err) : callback(null, res.body.graph)
-    )
-    return promise
+      { dropCollection },
+      (err, res) => (err ? callback(err) : callback(null, res.body.graph))
+    );
+    return promise;
   }
 
-  traversal (startVertex, opts, cb) {
-    if (typeof opts === 'function') {
-      cb = opts
-      opts = undefined
+  traversal(startVertex, opts, cb) {
+    if (typeof opts === "function") {
+      cb = opts;
+      opts = undefined;
     }
-    const {promise, callback} = this._connection.promisify(cb)
+    const { promise, callback } = this._connection.promisify(cb);
     this._api.post(
-      '/traversal',
-      {...opts, startVertex, graphName: this.name},
-      (err, res) => err ? callback(err) : callback(null, res.body.result)
-    )
-    return promise
+      "/traversal",
+      { ...opts, startVertex, graphName: this.name },
+      (err, res) => (err ? callback(err) : callback(null, res.body.result))
+    );
+    return promise;
   }
 }
 
 export {
   GraphVertexCollection as VertexCollection,
   GraphEdgeCollection as EdgeCollection
-}
+};
diff --git a/src/index.js b/src/index.js
index 8ca8cc427..ed1dcdad7 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,7 +1,6 @@
-import Database from './database'
-import aqlQuery from './aql-query'
+import Database from "./database";
+import aqlQuery from "./aql-query";
 
-module.exports = (...args) => new Database(...args)
-module.exports.Database = Database
-module.exports.aqlQuery =
-module.exports.aql = aqlQuery
+module.exports = (...args) => new Database(...args);
+module.exports.Database = Database;
+module.exports.aqlQuery = module.exports.aql = aqlQuery;
diff --git a/src/route.js b/src/route.js
index 58b101f56..7847798f9 100644
--- a/src/route.js
+++ b/src/route.js
@@ -1,201 +1,218 @@
 export default class Route {
-  constructor (connection, path, headers) {
-    if (!path) path = ''
-    else if (path.charAt(0) !== '/') path = `/${path}`
-    this._connection = connection
-    this._path = path
-    this._headers = headers
+  constructor(connection, path, headers) {
+    if (!path) path = "";
+    else if (path.charAt(0) !== "/") path = `/${path}`;
+    this._connection = connection;
+    this._path = path;
+    this._headers = headers;
   }
 
-  route (path, headers) {
-    if (!path) path = ''
-    else if (path.charAt(0) !== '/') path = `/${path}`
-    return new Route(
-      this._connection,
-      this._path + path,
-      {...this._headers, ...headers}
-    )
+  route(path, headers) {
+    if (!path) path = "";
+    else if (path.charAt(0) !== "/") path = `/${path}`;
+    return new Route(this._connection, this._path + path, {
+      ...this._headers,
+      ...headers
+    });
   }
 
-  request (opts, callback) {
-    opts = {...opts}
-    opts.basePath = this._path
-    opts.headers = {...this._headers, ...opts.headers}
-    opts.method = opts.method ? opts.method.toUpperCase() : 'GET'
-    return this._connection.request(opts, callback)
+  request(opts, callback) {
+    opts = { ...opts };
+    opts.basePath = this._path;
+    opts.headers = { ...this._headers, ...opts.headers };
+    opts.method = opts.method ? opts.method.toUpperCase() : "GET";
+    return this._connection.request(opts, callback);
   }
 
-  get (path, qs, headers, callback) {
-    if (typeof path !== 'string') {
-      callback = qs
-      qs = path
-      path = undefined
-    }
-    if (typeof qs === 'function') {
-      callback = qs
-      qs = undefined
-    }
-    if (typeof headers === 'function') {
-      callback = headers
-      headers = undefined
-    }
-    if (!path) path = ''
-    else if (this._path && path.charAt(0) !== '/') path = `/${path}`
-    headers = headers ? {...this._headers, ...headers} : {...this._headers}
-    return this._connection.request({
-      basePath: this._path,
-      path,
-      qs,
-      headers,
-      method: 'GET'
-    }, callback)
+  get(path, qs, headers, callback) {
+    if (typeof path !== "string") {
+      callback = qs;
+      qs = path;
+      path = undefined;
+    }
+    if (typeof qs === "function") {
+      callback = qs;
+      qs = undefined;
+    }
+    if (typeof headers === "function") {
+      callback = headers;
+      headers = undefined;
+    }
+    if (!path) path = "";
+    else if (this._path && path.charAt(0) !== "/") path = `/${path}`;
+    headers = headers ? { ...this._headers, ...headers } : { ...this._headers };
+    return this._connection.request(
+      {
+        basePath: this._path,
+        path,
+        qs,
+        headers,
+        method: "GET"
+      },
+      callback
+    );
   }
 
-  post (path, body, qs, headers, callback) {
-    if (typeof path !== 'string') {
-      callback = qs
-      qs = body
-      body = path
-      path = undefined
-    }
-    if (typeof qs === 'function') {
-      callback = qs
-      qs = undefined
-    }
-    if (typeof body === 'function') {
-      callback = body
-      body = undefined
-    }
-    if (typeof headers === 'function') {
-      callback = headers
-      headers = undefined
-    }
-    if (!path) path = ''
-    else if (this._path && path.charAt(0) !== '/') path = `/${path}`
-    headers = headers ? {...this._headers, ...headers} : {...this._headers}
-    return this._connection.request({
-      basePath: this._path,
-      path,
-      body,
-      qs,
-      headers,
-      method: 'POST'
-    }, callback)
+  post(path, body, qs, headers, callback) {
+    if (typeof path !== "string") {
+      callback = qs;
+      qs = body;
+      body = path;
+      path = undefined;
+    }
+    if (typeof qs === "function") {
+      callback = qs;
+      qs = undefined;
+    }
+    if (typeof body === "function") {
+      callback = body;
+      body = undefined;
+    }
+    if (typeof headers === "function") {
+      callback = headers;
+      headers = undefined;
+    }
+    if (!path) path = "";
+    else if (this._path && path.charAt(0) !== "/") path = `/${path}`;
+    headers = headers ? { ...this._headers, ...headers } : { ...this._headers };
+    return this._connection.request(
+      {
+        basePath: this._path,
+        path,
+        body,
+        qs,
+        headers,
+        method: "POST"
+      },
+      callback
+    );
   }
 
-  put (path, body, qs, headers, callback) {
-    if (typeof path !== 'string') {
-      callback = body
-      body = qs
-      qs = path
-      path = undefined
-    }
-    if (typeof qs === 'function') {
-      callback = qs
-      qs = undefined
-    }
-    if (typeof body === 'function') {
-      callback = body
-      body = undefined
-    }
-    if (typeof headers === 'function') {
-      callback = headers
-      headers = undefined
-    }
-    if (!path) path = ''
-    else if (this._path && path.charAt(0) !== '/') path = `/${path}`
-    headers = headers ? {...this._headers, ...headers} : {...this._headers}
-    return this._connection.request({
-      basePath: this._path,
-      path,
-      body,
-      qs,
-      headers,
-      method: 'PUT'
-    }, callback)
+  put(path, body, qs, headers, callback) {
+    if (typeof path !== "string") {
+      callback = body;
+      body = qs;
+      qs = path;
+      path = undefined;
+    }
+    if (typeof qs === "function") {
+      callback = qs;
+      qs = undefined;
+    }
+    if (typeof body === "function") {
+      callback = body;
+      body = undefined;
+    }
+    if (typeof headers === "function") {
+      callback = headers;
+      headers = undefined;
+    }
+    if (!path) path = "";
+    else if (this._path && path.charAt(0) !== "/") path = `/${path}`;
+    headers = headers ? { ...this._headers, ...headers } : { ...this._headers };
+    return this._connection.request(
+      {
+        basePath: this._path,
+        path,
+        body,
+        qs,
+        headers,
+        method: "PUT"
+      },
+      callback
+    );
   }
 
-  patch (path, body, qs, headers, callback) {
-    if (typeof path !== 'string') {
-      callback = body
-      body = qs
-      qs = path
-      path = undefined
-    }
-    if (typeof qs === 'function') {
-      callback = qs
-      qs = undefined
-    }
-    if (typeof body === 'function') {
-      callback = body
-      body = undefined
-    }
-    if (typeof headers === 'function') {
-      callback = headers
-      headers = undefined
-    }
-    if (!path) path = ''
-    else if (this._path && path.charAt(0) !== '/') path = `/${path}`
-    headers = headers ? {...this._headers, ...headers} : {...this._headers}
-    return this._connection.request({
-      basePath: this._path,
-      path,
-      body,
-      qs,
-      headers,
-      method: 'PATCH'
-    }, callback)
+  patch(path, body, qs, headers, callback) {
+    if (typeof path !== "string") {
+      callback = body;
+      body = qs;
+      qs = path;
+      path = undefined;
+    }
+    if (typeof qs === "function") {
+      callback = qs;
+      qs = undefined;
+    }
+    if (typeof body === "function") {
+      callback = body;
+      body = undefined;
+    }
+    if (typeof headers === "function") {
+      callback = headers;
+      headers = undefined;
+    }
+    if (!path) path = "";
+    else if (this._path && path.charAt(0) !== "/") path = `/${path}`;
+    headers = headers ? { ...this._headers, ...headers } : { ...this._headers };
+    return this._connection.request(
+      {
+        basePath: this._path,
+        path,
+        body,
+        qs,
+        headers,
+        method: "PATCH"
+      },
+      callback
+    );
   }
 
-  delete (path, qs, headers, callback) {
-    if (typeof path !== 'string') {
-      callback = qs
-      qs = path
-      path = undefined
-    }
-    if (typeof qs === 'function') {
-      callback = qs
-      qs = undefined
-    }
-    if (typeof headers === 'function') {
-      callback = headers
-      headers = undefined
-    }
-    if (!path) path = ''
-    else if (this._path && path.charAt(0) !== '/') path = `/${path}`
-    headers = headers ? {...this._headers, ...headers} : {...this._headers}
-    return this._connection.request({
-      basePath: this._path,
-      path,
-      qs,
-      headers,
-      method: 'DELETE'
-    }, callback)
+  delete(path, qs, headers, callback) {
+    if (typeof path !== "string") {
+      callback = qs;
+      qs = path;
+      path = undefined;
+    }
+    if (typeof qs === "function") {
+      callback = qs;
+      qs = undefined;
+    }
+    if (typeof headers === "function") {
+      callback = headers;
+      headers = undefined;
+    }
+    if (!path) path = "";
+    else if (this._path && path.charAt(0) !== "/") path = `/${path}`;
+    headers = headers ? { ...this._headers, ...headers } : { ...this._headers };
+    return this._connection.request(
+      {
+        basePath: this._path,
+        path,
+        qs,
+        headers,
+        method: "DELETE"
+      },
+      callback
+    );
   }
 
-  head (path, qs, headers, callback) {
-    if (typeof path !== 'string') {
-      callback = qs
-      qs = path
-      path = undefined
-    }
-    if (typeof qs === 'function') {
-      callback = qs
-      qs = undefined
-    }
-    if (typeof headers === 'function') {
-      callback = headers
-      headers = undefined
-    }
-    if (!path) path = ''
-    else if (this._path && path.charAt(0) !== '/') path = `/${path}`
-    headers = headers ? {...this._headers, ...headers} : {...this._headers}
-    return this._connection.request({
-      basePath: this._path,
-      path,
-      qs,
-      headers,
-      method: 'HEAD'
-    }, callback)
+  head(path, qs, headers, callback) {
+    if (typeof path !== "string") {
+      callback = qs;
+      qs = path;
+      path = undefined;
+    }
+    if (typeof qs === "function") {
+      callback = qs;
+      qs = undefined;
+    }
+    if (typeof headers === "function") {
+      callback = headers;
+      headers = undefined;
+    }
+    if (!path) path = "";
+    else if (this._path && path.charAt(0) !== "/") path = `/${path}`;
+    headers = headers ? { ...this._headers, ...headers } : { ...this._headers };
+    return this._connection.request(
+      {
+        basePath: this._path,
+        path,
+        qs,
+        headers,
+        method: "HEAD"
+      },
+      callback
+    );
   }
 }
diff --git a/src/util/all.js b/src/util/all.js
index 4c3b39f59..3642079b8 100644
--- a/src/util/all.js
+++ b/src/util/all.js
@@ -1,22 +1,22 @@
-export default function all (arr, callback) {
-  const result = []
-  let pending = arr.length
-  let called = false
+export default function all(arr, callback) {
+  const result = [];
+  let pending = arr.length;
+  let called = false;
 
-  if (arr.length === 0) return callback(null, result)
+  if (arr.length === 0) return callback(null, result);
 
-  const step = (i) => (err, res) => {
-    pending -= 1
-    if (!err) result[i] = res
+  const step = i => (err, res) => {
+    pending -= 1;
+    if (!err) result[i] = res;
     if (!called) {
-      if (err) callback(err)
+      if (err) callback(err);
       else if (pending === 0) {
-        if (result.every((r) => r === undefined)) callback(null)
-        else callback(null, result)
-      } else return
-      called = true
+        if (result.every(r => r === undefined)) callback(null);
+        else callback(null, result);
+      } else return;
+      called = true;
     }
-  }
+  };
 
-  arr.forEach((fn, i) => fn(step(i)))
+  arr.forEach((fn, i) => fn(step(i)));
 }
diff --git a/src/util/btoa.js b/src/util/btoa.js
index ab62cfafd..e171b88ec 100644
--- a/src/util/btoa.js
+++ b/src/util/btoa.js
@@ -1,3 +1,3 @@
-export default function (str) {
-  return Buffer.from(str).toString('base64')
+export default function(str) {
+  return Buffer.from(str).toString("base64");
 }
diff --git a/src/util/btoa.web.js b/src/util/btoa.web.js
index 8ce0e78f0..473717e25 100644
--- a/src/util/btoa.web.js
+++ b/src/util/btoa.web.js
@@ -1 +1,2 @@
-export default window.btoa
+/*eslint-env browser */
+export default window.btoa;
diff --git a/src/util/bytelength.js b/src/util/bytelength.js
index 53b0003c4..fab1b5afa 100644
--- a/src/util/bytelength.js
+++ b/src/util/bytelength.js
@@ -1 +1 @@
-export default Buffer.byteLength
+export default Buffer.byteLength;
diff --git a/src/util/bytelength.web.js b/src/util/bytelength.web.js
index d3fc8d78b..91e725a03 100644
--- a/src/util/bytelength.web.js
+++ b/src/util/bytelength.web.js
@@ -1 +1,2 @@
-module.exports = require('utf8-length')
+/*eslint-env browser */
+module.exports = require("utf8-length");
diff --git a/src/util/joinPath.js b/src/util/joinPath.js
index 7310fa3e1..e2596159c 100644
--- a/src/util/joinPath.js
+++ b/src/util/joinPath.js
@@ -1,3 +1,3 @@
-import path from 'path'
-const posix = path.posix || path
-export default posix.join
+import path from "path";
+const posix = path.posix || path;
+export default posix.join;
diff --git a/src/util/multipart.js b/src/util/multipart.js
index 93e812775..137f820c8 100644
--- a/src/util/multipart.js
+++ b/src/util/multipart.js
@@ -1,45 +1,45 @@
-import Multipart from 'multi-part'
-import {Readable} from 'stream'
+import Multipart from "multi-part";
+import { Readable } from "stream";
 
-export default function toForm (fields, callback) {
-  let called = false
+export default function toForm(fields, callback) {
+  let called = false;
   try {
-    const form = new Multipart()
+    const form = new Multipart();
     for (const key of Object.keys(fields)) {
-      let value = fields[key]
-      if (value === undefined) continue
+      let value = fields[key];
+      if (value === undefined) continue;
       if (
         !(value instanceof Readable) &&
         !(value instanceof global.Buffer) &&
-        (typeof value === 'object' || typeof value === 'function')
+        (typeof value === "object" || typeof value === "function")
       ) {
-        value = JSON.stringify(value)
+        value = JSON.stringify(value);
       }
-      form.append(key, value)
+      form.append(key, value);
     }
-    const stream = form.getStream()
-    const bufs = []
-    stream.on('data', (buf) => bufs.push(buf))
-    stream.on('end', () => {
-      if (called) return
-      bufs.push(Buffer.from('\r\n'))
-      const body = Buffer.concat(bufs)
-      const boundary = form.getBoundary()
+    const stream = form.getStream();
+    const bufs = [];
+    stream.on("data", buf => bufs.push(buf));
+    stream.on("end", () => {
+      if (called) return;
+      bufs.push(Buffer.from("\r\n"));
+      const body = Buffer.concat(bufs);
+      const boundary = form.getBoundary();
       const headers = {
-        'content-type': `multipart/form-data; boundary=${boundary}`,
-        'content-length': String(body.length)
-      }
-      called = true
-      callback(null, {body, headers})
-    })
-    stream.on('error', (e) => {
-      if (called) return
-      called = true
-      callback(e)
-    })
+        "content-type": `multipart/form-data; boundary=${boundary}`,
+        "content-length": String(body.length)
+      };
+      called = true;
+      callback(null, { body, headers });
+    });
+    stream.on("error", e => {
+      if (called) return;
+      called = true;
+      callback(e);
+    });
   } catch (e) {
-    if (called) return
-    called = true
-    callback(e)
+    if (called) return;
+    called = true;
+    callback(e);
   }
 }
diff --git a/src/util/multipart.web.js b/src/util/multipart.web.js
index 34ae2c6fe..3143d8f0d 100644
--- a/src/util/multipart.web.js
+++ b/src/util/multipart.web.js
@@ -1,21 +1,22 @@
-export default function toForm (fields, callback) {
-  let form
+/*eslint-env browser */
+export default function toForm(fields, callback) {
+  let form;
   try {
-    form = new global.FormData()
+    form = new global.FormData();
     for (const key of Object.keys(fields)) {
-      let value = fields[key]
-      if (value === undefined) continue
+      let value = fields[key];
+      if (value === undefined) continue;
       if (
         !(value instanceof global.Blob) &&
-        (typeof value === 'object' || typeof value === 'function')
+        (typeof value === "object" || typeof value === "function")
       ) {
-        value = JSON.stringify(value)
+        value = JSON.stringify(value);
       }
-      form.append(key, value)
+      form.append(key, value);
     }
   } catch (e) {
-    callback(e)
-    return
+    callback(e);
+    return;
   }
-  callback(null, {body: form})
+  callback(null, { body: form });
 }
diff --git a/src/util/promisify.js b/src/util/promisify.js
index 63d8fdf31..33570e25a 100644
--- a/src/util/promisify.js
+++ b/src/util/promisify.js
@@ -1,27 +1,27 @@
-const noop = () => undefined
+const noop = () => undefined;
 
-export default function promisify (promiseClass) {
+export default function promisify(promiseClass) {
   if (promiseClass === false) {
-    return function (cb) {
-      return {callback: cb || noop}
-    }
+    return function(cb) {
+      return { callback: cb || noop };
+    };
   }
 
-  return function (cb) {
-    const Promise = promiseClass || global.Promise
+  return function(cb) {
+    const Promise = promiseClass || global.Promise;
 
     if (cb || !Promise) {
-      return {callback: cb || noop}
+      return { callback: cb || noop };
     }
 
-    let callback
+    let callback;
     const promise = new Promise((resolve, reject) => {
       callback = (err, res) => {
-        if (err) reject(err)
-        else resolve(res)
-      }
-    })
+        if (err) reject(err);
+        else resolve(res);
+      };
+    });
 
-    return {callback, promise}
-  }
+    return { callback, promise };
+  };
 }
diff --git a/src/util/request.js b/src/util/request.js
index db5a4441b..70bdad3e3 100644
--- a/src/util/request.js
+++ b/src/util/request.js
@@ -1 +1 @@
-module.exports = require('./request.node')
+module.exports = require("./request.node");
diff --git a/src/util/request.node.js b/src/util/request.node.js
index e37118244..971dfda29 100644
--- a/src/util/request.node.js
+++ b/src/util/request.node.js
@@ -1,77 +1,80 @@
-import http from 'http'
-import https from 'https'
-import {parse as parseUrl} from 'url'
-import LinkedList from 'linkedlist'
-import joinPath from './joinPath'
+import LinkedList from "linkedlist";
+import http from "http";
+import https from "https";
+import joinPath from "./joinPath";
+import { parse as parseUrl } from "url";
 
-export const isBrowser = false
+export const isBrowser = false;
 
-export default function (baseUrl, agentOptions, agent) {
-  const baseUrlParts = parseUrl(baseUrl)
-  const isTls = baseUrlParts.protocol === 'https:'
+export default function(baseUrl, agentOptions, agent) {
+  const baseUrlParts = parseUrl(baseUrl);
+  const isTls = baseUrlParts.protocol === "https:";
 
   if (!agent) {
-    const Agent = (isTls ? https : http).Agent
-    agent = new Agent(agentOptions)
+    const Agent = (isTls ? https : http).Agent;
+    agent = new Agent(agentOptions);
   }
 
-  const queue = new LinkedList()
-  const maxTasks = typeof agent.maxSockets === 'number' ? agent.maxSockets * 2 : Infinity
-  let activeTasks = 0
+  const queue = new LinkedList();
+  const maxTasks =
+    typeof agent.maxSockets === "number" ? agent.maxSockets * 2 : Infinity;
+  let activeTasks = 0;
 
-  function drainQueue () {
-    if (!queue.length || activeTasks >= maxTasks) return
-    const task = queue.shift()
-    activeTasks += 1
+  function drainQueue() {
+    if (!queue.length || activeTasks >= maxTasks) return;
+    const task = queue.shift();
+    activeTasks += 1;
     task(() => {
-      activeTasks -= 1
-      drainQueue()
-    })
+      activeTasks -= 1;
+      drainQueue();
+    });
   }
 
-  function request ({method, url, headers, body, expectBinary}, cb) {
-    let path = baseUrlParts.pathname ? (
-      url.pathname ? joinPath(baseUrlParts.pathname, url.pathname) : baseUrlParts.pathname
-    ) : url.pathname
-    const search = url.search ? (
-      baseUrlParts.search ? `${baseUrlParts.search}&${url.search.slice(1)}` : url.search
-    ) : baseUrlParts.search
-    if (search) path += search
-    const options = {path, method, headers, agent}
-    options.hostname = baseUrlParts.hostname
-    options.port = baseUrlParts.port
-    options.auth = baseUrlParts.auth
+  function request({ method, url, headers, body, expectBinary }, cb) {
+    let path = baseUrlParts.pathname
+      ? url.pathname
+        ? joinPath(baseUrlParts.pathname, url.pathname)
+        : baseUrlParts.pathname
+      : url.pathname;
+    const search = url.search
+      ? baseUrlParts.search
+        ? `${baseUrlParts.search}&${url.search.slice(1)}`
+        : url.search
+      : baseUrlParts.search;
+    if (search) path += search;
+    const options = { path, method, headers, agent };
+    options.hostname = baseUrlParts.hostname;
+    options.port = baseUrlParts.port;
+    options.auth = baseUrlParts.auth;
 
-    queue.push((next) => {
+    queue.push(next => {
       let callback = (err, res) => {
-        callback = () => undefined
-        next()
-        cb(err, res)
-      }
-      const req = (isTls ? https : http).request(options, (res) => {
-        const data = []
-        res
-        .on('data', (chunk) => data.push(chunk))
-        .on('end', () => {
-          res.body = Buffer.concat(data)
+        callback = () => undefined;
+        next();
+        cb(err, res);
+      };
+      const req = (isTls ? https : http).request(options, res => {
+        const data = [];
+        res.on("data", chunk => data.push(chunk)).on("end", () => {
+          res.body = Buffer.concat(data);
           if (!expectBinary) {
-            res.body = res.body.toString('utf-8')
+            res.body = res.body.toString("utf-8");
           }
-          callback(null, res)
-        })
-      })
-      req.on('error', (err) => {
-        err.request = req
-        callback(err)
-      })
-      if (body) req.write(body)
-      req.end()
-    })
+          callback(null, res);
+        });
+      });
+      req.on("error", err => {
+        err.request = req;
+        callback(err);
+      });
+      if (body) req.write(body);
+      req.end();
+    });
 
-    drainQueue()
+    drainQueue();
   }
 
-  const auth = baseUrlParts.auth
-  delete baseUrlParts.auth
-  return {request, auth, url: baseUrlParts}
+  const auth = baseUrlParts.auth;
+  delete baseUrlParts.auth;
+  return { request, auth, url: baseUrlParts };
 }
diff --git a/src/util/request.web.js b/src/util/request.web.js
index 17118dd70..dc9f24f14 100644
--- a/src/util/request.web.js
+++ b/src/util/request.web.js
@@ -1,66 +1,76 @@
-import xhr from 'xhr'
-import {parse as parseUrl, format as formatUrl} from 'url'
-import joinPath from './joinPath'
+/*eslint-env browser */
+import { format as formatUrl, parse as parseUrl } from "url";
 
-export const isBrowser = true
+import joinPath from "./joinPath";
+import xhr from "xhr";
 
-export default function (baseUrl, options) {
-  if (!options) options = {}
-  const baseUrlParts = parseUrl(baseUrl)
+export const isBrowser = true;
 
-  const queue = []
-  const maxTasks = typeof options.maxSockets === 'number' ? options.maxSockets * 2 : Infinity
-  let activeTasks = 0
+export default function(baseUrl, options) {
+  if (!options) options = {};
+  const baseUrlParts = parseUrl(baseUrl);
 
-  function drainQueue () {
-    if (!queue.length || activeTasks >= maxTasks) return
-    const task = queue.shift()
-    activeTasks += 1
+  const queue = [];
+  const maxTasks =
+    typeof options.maxSockets === "number" ? options.maxSockets * 2 : Infinity;
+  let activeTasks = 0;
+
+  function drainQueue() {
+    if (!queue.length || activeTasks >= maxTasks) return;
+    const task = queue.shift();
+    activeTasks += 1;
     task(() => {
-      activeTasks -= 1
-      drainQueue()
-    })
+      activeTasks -= 1;
+      drainQueue();
+    });
   }
 
-  function request ({method, url, headers, body, expectBinary}, cb) {
+  function request({ method, url, headers, body, expectBinary }, cb) {
     const urlParts = {
       ...baseUrlParts,
-      pathname: url.pathname ? (
-        baseUrlParts.pathname ? joinPath(baseUrlParts.pathname, url.pathname) : url.pathname
-      ) : baseUrlParts.pathname,
-      search: url.search ? (
-        baseUrlParts.search ? `${baseUrlParts.search}&${url.search.slice(1)}` : url.search
-      ) : baseUrlParts.search
-    }
+      pathname: url.pathname
+        ? baseUrlParts.pathname
+          ? joinPath(baseUrlParts.pathname, url.pathname)
+          : url.pathname
+        : baseUrlParts.pathname,
+      search: url.search
+        ? baseUrlParts.search
+          ? `${baseUrlParts.search}&${url.search.slice(1)}`
+          : url.search
+        : baseUrlParts.search
+    };
 
-    queue.push((next) => {
+    queue.push(next => {
       let callback = (err, res) => {
-        callback = () => undefined
-        next()
-        cb(err, res)
-      }
-      const req = xhr({
-        responseType: expectBinary ? 'blob' : 'text',
-        ...options,
-        url: formatUrl(urlParts),
-        withCredentials: true,
-        useXDR: true,
-        body,
-        method,
-        headers
-      }, (err, res) => {
-        if (!err) callback(null, res)
-        else {
-          err.request = req
-          callback(err)
+        callback = () => undefined;
+        next();
+        cb(err, res);
+      };
+      const req = xhr(
+        {
+          responseType: expectBinary ? "blob" : "text",
+          ...options,
+          url: formatUrl(urlParts),
+          withCredentials: true,
+          useXDR: true,
+          body,
+          method,
+          headers
+        },
+        (err, res) => {
+          if (!err) callback(null, res);
+          else {
+            err.request = req;
+            callback(err);
+          }
         }
-      })
-    })
+      );
+    });
 
-    drainQueue()
+    drainQueue();
   }
 
-  const auth = baseUrlParts.auth
-  delete baseUrlParts.auth
-  return {request, auth, url: baseUrlParts}
+  const auth = baseUrlParts.auth;
+  delete baseUrlParts.auth;
+  return { request, auth, url: baseUrlParts };
 }
diff --git a/test/00-basics.js b/test/00-basics.js
index 7d703327a..6f61411fc 100644
--- a/test/00-basics.js
+++ b/test/00-basics.js
@@ -1,168 +1,169 @@
-import {describe, it, before, after, beforeEach} from 'mocha'
-import {expect} from 'chai'
-import arangojs, {Database} from '../src'
-import Connection from '../src/connection'
-import https from 'https'
-import http from 'http'
+import { after, before, beforeEach, describe, it } from "mocha";
+import arangojs, { Database } from "../src";
 
-describe('Creating a Database', () => {
-  describe('using the factory', () => {
-    const db = arangojs({potato: 'potato'})
-    it('returns a Database instance', () => {
-      expect(db).to.be.an.instanceof(Database)
-    })
-    it('passes any configs to the connection', () => {
-      expect(db._connection.config).to.have.a.property('potato', 'potato')
-    })
-  })
-  describe('using the constructor', () => {
-    const db = new Database({banana: 'banana'})
-    it('returns a Database instance', () => {
-      expect(db).to.be.an.instanceof(Database)
-    })
-    it('passes any configs to the connection', () => {
-      expect(db._connection.config).to.have.a.property('banana', 'banana')
-    })
-  })
-})
+import Connection from "../src/connection";
+import { expect } from "chai";
+import http from "http";
+import https from "https";
 
-describe('Configuring the driver', () => {
-  describe('with a string', () => {
-    it('sets the url', () => {
-      const url = 'https://example.com:9000'
-      const conn = new Connection(url)
-      expect(conn.config).to.have.a.property('url', url)
-    })
-  })
-  describe('with headers', () => {
-    it('applies the headers', (done) => {
+describe("Creating a Database", () => {
+  describe("using the factory", () => {
+    const db = arangojs({ potato: "potato" });
+    it("returns a Database instance", () => {
+      expect(db).to.be.an.instanceof(Database);
+    });
+    it("passes any configs to the connection", () => {
+      expect(db._connection.config).to.have.a.property("potato", "potato");
+    });
+  });
+  describe("using the constructor", () => {
+    const db = new Database({ banana: "banana" });
+    it("returns a Database instance", () => {
+      expect(db).to.be.an.instanceof(Database);
+    });
+    it("passes any configs to the connection", () => {
+      expect(db._connection.config).to.have.a.property("banana", "banana");
+    });
+  });
+});
+
+describe("Configuring the driver", () => {
+  describe("with a string", () => {
+    it("sets the url", () => {
+      const url = "https://example.com:9000";
+      const conn = new Connection(url);
+      expect(conn.config).to.have.a.property("url", url);
+    });
+  });
+  describe("with headers", () => {
+    it("applies the headers", done => {
       const conn = new Connection({
         headers: {
-          'x-one': '1',
-          'x-two': '2'
+          "x-one": "1",
+          "x-two": "2"
         }
-      })
-      conn._request = ({headers}) => {
-        expect(headers).to.have.a.property('x-one', '1')
-        expect(headers).to.have.a.property('x-two', '2')
-        done()
-      }
-      conn.request({headers: {}})
-    })
-  })
-  describe('with an arangoVersion', () => {
-    it('sets the x-arango-version header', (done) => {
-      const conn = new Connection({arangoVersion: 99999})
-      conn._request = ({headers}) => {
-        expect(headers).to.have.a.property('x-arango-version', 99999)
-        done()
-      }
-      conn.request({headers: {}})
-    })
-    it('does not overwrite explicit headers', (done) => {
+      });
+      conn._request = ({ headers }) => {
+        expect(headers).to.have.a.property("x-one", "1");
+        expect(headers).to.have.a.property("x-two", "2");
+        done();
+      };
+      conn.request({ headers: {} });
+    });
+  });
+  describe("with an arangoVersion", () => {
+    it("sets the x-arango-version header", done => {
+      const conn = new Connection({ arangoVersion: 99999 });
+      conn._request = ({ headers }) => {
+        expect(headers).to.have.a.property("x-arango-version", 99999);
+        done();
+      };
+      conn.request({ headers: {} });
+    });
+    it("does not overwrite explicit headers", done => {
       const conn = new Connection({
         arangoVersion: 99999,
-        headers: {'x-arango-version': 66666}
-      })
-      conn._request = ({headers}) => {
-        expect(headers).to.have.a.property('x-arango-version', 66666)
-        done()
-      }
-      conn.request({headers: {}})
-    })
-  })
-  describe('with agentOptions', () => {
-    const _httpAgent = http.Agent
-    const _httpsAgent = https.Agent
-    let protocol
-    let options
+        headers: { "x-arango-version": 66666 }
+      });
+      conn._request = ({ headers }) => {
+        expect(headers).to.have.a.property("x-arango-version", 66666);
+        done();
+      };
+      conn.request({ headers: {} });
+    });
+  });
+  describe("with agentOptions", () => {
+    const _httpAgent = http.Agent;
+    const _httpsAgent = https.Agent;
+    let protocol;
+    let options;
     beforeEach(() => {
-      protocol = undefined
-      options = undefined
-    })
+      protocol = undefined;
+      options = undefined;
+    });
     before(() => {
-      let Agent = (ptcl) => (opts) => {
-        protocol = ptcl
-        options = opts
-        return () => null
-      }
-      http.Agent = Agent('http')
-      https.Agent = Agent('https')
-    })
+      let Agent = ptcl => opts => {
+        protocol = ptcl;
+        options = opts;
+        return () => null;
+      };
+      http.Agent = Agent("http");
+      https.Agent = Agent("https");
+    });
     after(() => {
-      http.Agent = _httpAgent
-      https.Agent = _httpsAgent
-    })
-    it('passes the agentOptions to the agent', () => {
-      new Connection({agentOptions: {hello: 'world'}}) // eslint-disable-line no-new
-      expect(options).to.have.a.property('hello', 'world')
-    })
-    it('uses the built-in agent for the protocol', () => {
+      http.Agent = _httpAgent;
+      https.Agent = _httpsAgent;
+    });
+    it("passes the agentOptions to the agent", () => {
+      new Connection({ agentOptions: { hello: "world" } }); // eslint-disable-line no-new
+      expect(options).to.have.a.property("hello", "world");
+    });
+    it("uses the built-in agent for the protocol", () => {
       // default: http
-      new Connection() // eslint-disable-line no-new
-      expect(protocol).to.equal('http')
-      new Connection('https://localhost:8529') // eslint-disable-line no-new
-      expect(protocol).to.equal('https')
-      new Connection('http://localhost:8529') // eslint-disable-line no-new
-      expect(protocol).to.equal('http')
-    })
-  })
-  describe('with agent', () => {
-    const _httpRequest = http.request
-    const _httpsRequest = https.request
-    let protocol
-    let options
+      new Connection(); // eslint-disable-line no-new
+      expect(protocol).to.equal("http");
+      new Connection("https://localhost:8529"); // eslint-disable-line no-new
+      expect(protocol).to.equal("https");
+      new Connection("http://localhost:8529"); // eslint-disable-line no-new
+      expect(protocol).to.equal("http");
+    });
+  });
+  describe("with agent", () => {
+    const _httpRequest = http.request;
+    const _httpsRequest = https.request;
+    let protocol;
+    let options;
     beforeEach(() => {
-      protocol = undefined
-      options = undefined
-    })
+      protocol = undefined;
+      options = undefined;
+    });
     before(() => {
-      let Request = (ptcl) => (opts) => {
-        protocol = ptcl
-        options = opts
+      let Request = ptcl => opts => {
+        protocol = ptcl;
+        options = opts;
         return {
-          on () {
-            return this
+          on() {
+            return this;
           },
-          end () {
-            return this
+          end() {
+            return this;
           }
-        }
-      }
-      http.request = Request('http')
-      https.request = Request('https')
-    })
+        };
+      };
+      http.request = Request("http");
+      https.request = Request("https");
+    });
     after(() => {
-      http.request = _httpRequest
-      https.request = _httpsRequest
-    })
-    it('passes the agent to the request function', () => {
-      let agent = 1
-      let conn
-      conn = new Connection({agent}) // default: http
-      conn.request({headers: {}})
-      expect(options).to.have.a.property('agent', agent)
-      agent++
-      conn = new Connection({agent, url: 'https://localhost:8529'})
-      conn.request({headers: {}})
-      expect(options).to.have.a.property('agent', agent)
-      agent++
-      conn = new Connection({agent, url: 'http://localhost:8529'})
-      conn.request({headers: {}})
-      expect(options).to.have.a.property('agent', agent)
-    })
-    it('uses the request function for the protocol', () => {
-      const agent = 1
-      let conn
-      conn = new Connection({agent}) // default: http
-      conn.request({headers: {}})
-      expect(protocol).to.equal('http')
-      conn = new Connection({agent, url: 'https://localhost:8529'})
-      conn.request({headers: {}})
-      expect(protocol).to.equal('https')
-      conn = new Connection({agent, url: 'http://localhost:8529'})
-      conn.request({headers: {}})
-      expect(protocol).to.equal('http')
-    })
-  })
-})
+      http.request = _httpRequest;
+      https.request = _httpsRequest;
+    });
+    it("passes the agent to the request function", () => {
+      let agent = 1;
+      let conn;
+      conn = new Connection({ agent }); // default: http
+      conn.request({ headers: {} });
+      expect(options).to.have.a.property("agent", agent);
+      agent++;
+      conn = new Connection({ agent, url: "https://localhost:8529" });
+      conn.request({ headers: {} });
+      expect(options).to.have.a.property("agent", agent);
+      agent++;
+      conn = new Connection({ agent, url: "http://localhost:8529" });
+      conn.request({ headers: {} });
+      expect(options).to.have.a.property("agent", agent);
+    });
+    it("uses the request function for the protocol", () => {
+      const agent = 1;
+      let conn;
+      conn = new Connection({ agent }); // default: http
+      conn.request({ headers: {} });
+      expect(protocol).to.equal("http");
+      conn = new Connection({ agent, url: "https://localhost:8529" });
+      conn.request({ headers: {} });
+      expect(protocol).to.equal("https");
+      conn = new Connection({ agent, url: "http://localhost:8529" });
+      conn.request({ headers: {} });
+      expect(protocol).to.equal("http");
+    });
+  });
+});
diff --git a/test/01-manipulating-databases.js b/test/01-manipulating-databases.js
index e237ceb41..1e01ab2d7 100644
--- a/test/01-manipulating-databases.js
+++ b/test/01-manipulating-databases.js
@@ -1,170 +1,193 @@
-import {describe, it, beforeEach, afterEach} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
-import ArangoError from '../src/error'
+import { afterEach, beforeEach, describe, it } from "mocha";
 
-const range = (n) => Array.from(Array(n).keys())
+import ArangoError from "../src/error";
+import { Database } from "../src";
+import { expect } from "chai";
 
-describe('Manipulating databases', () => {
-  let db
+const range = n => Array.from(Array(n).keys());
+
+describe("Manipulating databases", () => {
+  let db;
   beforeEach(() => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-    })
-  })
-  describe('database.useDatabase', () => {
-    it('updates the database name', () => {
-      const name = 'example'
-      expect(db.name).to.equal('_system') // default
-      db.useDatabase(name)
-      expect(db._connection.config).to.have.a.property('databaseName', name)
-      expect(db.name).to.equal(name)
-    })
-    it('returns itself', () => {
-      const db2 = db.useDatabase('nope')
-      expect(db).to.equal(db2)
-    })
-  })
-  describe('database.createDatabase', () => {
-    let name = `testdb_${Date.now()}`
-    afterEach((done) => {
-      db.useDatabase('_system')
-      db.dropDatabase(name)
+    });
+  });
+  describe("database.useDatabase", () => {
+    it("updates the database name", () => {
+      const name = "example";
+      expect(db.name).to.equal("_system"); // default
+      db.useDatabase(name);
+      expect(db._connection.config).to.have.a.property("databaseName", name);
+      expect(db.name).to.equal(name);
+    });
+    it("returns itself", () => {
+      const db2 = db.useDatabase("nope");
+      expect(db).to.equal(db2);
+    });
+  });
+  describe("database.createDatabase", () => {
+    let name = `testdb_${Date.now()}`;
+    afterEach(done => {
+      db.useDatabase("_system");
+      db
+        .dropDatabase(name)
         .then(() => void done())
-        .catch(done)
-    })
-    it('creates a database with the given name', (done) => {
-      db.createDatabase(name)
+        .catch(done);
+    });
+    it("creates a database with the given name", done => {
+      db
+        .createDatabase(name)
         .then(() => {
-          db.useDatabase(name)
-          return db.get()
+          db.useDatabase(name);
+          return db.get();
         })
-        .then((info) => {
-          expect(info.name).to.equal(name)
-          done()
+        .then(info => {
+          expect(info.name).to.equal(name);
+          done();
         })
-        .catch(done)
-    })
-    it('adds the given users to the database')
-  })
-  describe('database.get', () => {
-    it('fetches the database description if the database exists', (done) => {
-      db.get()
-        .then((info) => {
-          expect(info.name).to.equal(db.name)
-          expect(db.name).to.equal('_system')
-          done()
+        .catch(done);
+    });
+    it("adds the given users to the database");
+  });
+  describe("database.get", () => {
+    it("fetches the database description if the database exists", done => {
+      db
+        .get()
+        .then(info => {
+          expect(info.name).to.equal(db.name);
+          expect(db.name).to.equal("_system");
+          done();
         })
-        .catch(done)
-    })
-    it('fails if the database does not exist', (done) => {
-      db.useDatabase('__does_not_exist__')
-      db.get()
+        .catch(done);
+    });
+    it("fails if the database does not exist", done => {
+      db.useDatabase("__does_not_exist__");
+      db
+        .get()
         .then(
-          () => Promise.reject(new Error('Should not succeed')),
-          (err) => {
-            expect(err).to.be.an.instanceof(ArangoError)
-            done()
+          () => Promise.reject(new Error("Should not succeed")),
+          err => {
+            expect(err).to.be.an.instanceof(ArangoError);
+            done();
           }
-      )
-        .catch(done)
-    })
-  })
-  describe('database.listDatabases', () => {
-    it('returns a list of all databases', (done) => {
-      db.listDatabases()
-        .then((databases) => {
-          expect(databases).to.be.an.instanceof(Array)
-          expect(databases.indexOf('_system')).to.be.greaterThan(-1)
-          done()
+        )
+        .catch(done);
+    });
+  });
+  describe("database.listDatabases", () => {
+    it("returns a list of all databases", done => {
+      db
+        .listDatabases()
+        .then(databases => {
+          expect(databases).to.be.an.instanceof(Array);
+          expect(databases.indexOf("_system")).to.be.greaterThan(-1);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('database.listUserDatabases', () => {
-    it('returns a list of databases accessible to the active user')
-  })
-  describe('database.dropDatabase', () => {
-    let name = `testdb_${Date.now()}`
-    beforeEach((done) => {
-      db.createDatabase(name)
+        .catch(done);
+    });
+  });
+  describe("database.listUserDatabases", () => {
+    it("returns a list of databases accessible to the active user");
+  });
+  describe("database.dropDatabase", () => {
+    let name = `testdb_${Date.now()}`;
+    beforeEach(done => {
+      db
+        .createDatabase(name)
         .then(() => void done())
-        .catch(done)
-    })
-    it('deletes the given database from the server', (done) => {
-      db.dropDatabase(name)
-        .then(() => new Database({databaseName: name}).get())
-        .then(
-          () => Promise.reject(new Error('Should not succeed')),
-          () => null
-      )
+        .catch(done);
+    });
+    it("deletes the given database from the server", done => {
+      db
+        .dropDatabase(name)
+        .then(() => new Database({ databaseName: name }).get())
+        .then(() => Promise.reject(new Error("Should not succeed")), () => null)
         .then(() => void done())
-        .catch(done)
-    })
-  })
-  describe('database.truncate', () => {
-    let name = `testdb_${Date.now()}`
-    let nonSystemCollections = range(4).map((i) => `c_${Date.now()}_${i}`)
-    let systemCollections = range(4).map((i) => `_c_${Date.now()}_${i}`)
-    beforeEach((done) => {
-      db.createDatabase(name)
+        .catch(done);
+    });
+  });
+  describe("database.truncate", () => {
+    let name = `testdb_${Date.now()}`;
+    let nonSystemCollections = range(4).map(i => `c_${Date.now()}_${i}`);
+    let systemCollections = range(4).map(i => `_c_${Date.now()}_${i}`);
+    beforeEach(done => {
+      db
+        .createDatabase(name)
         .then(() => {
-          db.useDatabase(name)
+          db.useDatabase(name);
           return Promise.all([
-            ...nonSystemCollections.map((name) => {
-              let collection = db.collection(name)
-              return collection.create()
-                .then(() => collection.save({_key: 'example'}))
+            ...nonSystemCollections.map(name => {
+              let collection = db.collection(name);
+              return collection
+                .create()
+                .then(() => collection.save({ _key: "example" }));
             }),
-            ...systemCollections.map((name) => {
-              let collection = db.collection(name)
-              return collection.create({isSystem: true})
-                .then(() => collection.save({_key: 'example'}))
+            ...systemCollections.map(name => {
+              let collection = db.collection(name);
+              return collection
+                .create({ isSystem: true })
+                .then(() => collection.save({ _key: "example" }));
             })
-          ])
+          ]);
         })
         .then(() => void done())
-        .catch(done)
-    })
-    afterEach((done) => {
-      db.useDatabase('_system')
-      db.dropDatabase(name)
+        .catch(done);
+    });
+    afterEach(done => {
+      db.useDatabase("_system");
+      db
+        .dropDatabase(name)
         .then(() => void done())
-        .catch(done)
-    })
-    it('removes all documents from all non-system collections in the database', (done) => {
-      db.truncate()
+        .catch(done);
+    });
+    it("removes all documents from all non-system collections in the database", done => {
+      db
+        .truncate()
         .then(() => {
           return Promise.all([
-            ...nonSystemCollections.map(
-              (name) => db.collection(name).document('example')
+            ...nonSystemCollections.map(name =>
+              db
+                .collection(name)
+                .document("example")
                 .then(
-                  (doc) => Promise.reject(new Error(`Expected document to be destroyed: ${doc._id}`)),
-                  (err) => expect(err).to.be.an.instanceof(ArangoError)
-              )
+                  doc =>
+                    Promise.reject(
+                      new Error(`Expected document to be destroyed: ${doc._id}`)
+                    ),
+                  err => expect(err).to.be.an.instanceof(ArangoError)
+                )
             ),
-            ...systemCollections.map(
-              (name) => db.collection(name).document('example')
+            ...systemCollections.map(name =>
+              db.collection(name).document("example")
             )
-          ])
+          ]);
         })
         .then(() => void done())
-        .catch(done)
-    })
-    it('additionally truncates system collections if explicitly passed false', (done) => {
-      db.truncate(false)
+        .catch(done);
+    });
+    it("additionally truncates system collections if explicitly passed false", done => {
+      db
+        .truncate(false)
         .then(() => {
-          return Promise.all(nonSystemCollections.map(
-            (name) => db.collection(name).document('example')
-              .then(
-                (doc) => Promise.reject(new Error(`Expected document to be destroyed: ${doc._id}`)),
-                (err) => expect(err).to.be.an.instanceof(ArangoError)
+          return Promise.all(
+            nonSystemCollections.map(name =>
+              db
+                .collection(name)
+                .document("example")
+                .then(
+                  doc =>
+                    Promise.reject(
+                      new Error(`Expected document to be destroyed: ${doc._id}`)
+                    ),
+                  err => expect(err).to.be.an.instanceof(ArangoError)
+                )
             )
-          ))
+          );
         })
         .then(() => void done())
-        .catch(done)
-    })
-  })
-})
+        .catch(done);
+    });
+  });
+});
diff --git a/test/02-accessing-collections.js b/test/02-accessing-collections.js
index 9898a6c96..11037898f 100644
--- a/test/02-accessing-collections.js
+++ b/test/02-accessing-collections.js
@@ -1,134 +1,183 @@
-import {describe, it, before, after} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
-import {DocumentCollection, EdgeCollection} from '../src/collection'
+import { DocumentCollection, EdgeCollection } from "../src/collection";
+import { after, before, describe, it } from "mocha";
 
-const range = (n) => Array.from(Array(n).keys())
+import { Database } from "../src";
+import { expect } from "chai";
 
-describe('Accessing collections', () => {
-  let name = `testdb_${Date.now()}`
-  let db
-  before((done) => {
+const range = n => Array.from(Array(n).keys());
+
+describe("Accessing collections", () => {
+  let name = `testdb_${Date.now()}`;
+  let db;
+  before(done => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-    })
-    db.createDatabase(name)
+    });
+    db
+      .createDatabase(name)
       .then(() => {
-        db.useDatabase(name)
-        done()
+        db.useDatabase(name);
+        done();
       })
-      .catch(done)
-  })
-  after((done) => {
-    db.useDatabase('_system')
-    db.dropDatabase(name)
+      .catch(done);
+  });
+  after(done => {
+    db.useDatabase("_system");
+    db
+      .dropDatabase(name)
       .then(() => void done())
-      .catch(done)
-  })
-  describe('database.collection', () => {
-    it('returns a DocumentCollection instance for the collection', () => {
-      let name = 'potato'
-      let collection = db.collection(name)
-      expect(collection).to.be.an.instanceof(DocumentCollection)
-      expect(collection).to.have.a.property('name').that.equals(name)
-    })
-  })
-  describe('database.edgeCollection', () => {
-    it('returns an EdgeCollection instance for the collection', () => {
-      let name = 'tomato'
-      let collection = db.edgeCollection(name)
-      expect(collection).to.be.an.instanceof(EdgeCollection)
-      expect(collection).to.have.a.property('name').that.equals(name)
-    })
-  })
-  describe('database.listCollections', () => {
-    let nonSystemCollectionNames = range(4).map((i) => `c_${Date.now()}_${i}`)
-    let systemCollectionNames = range(4).map((i) => `_c_${Date.now()}_${i}`)
-    before((done) => {
+      .catch(done);
+  });
+  describe("database.collection", () => {
+    it("returns a DocumentCollection instance for the collection", () => {
+      let name = "potato";
+      let collection = db.collection(name);
+      expect(collection).to.be.an.instanceof(DocumentCollection);
+      expect(collection)
+        .to.have.a.property("name")
+        .that.equals(name);
+    });
+  });
+  describe("database.edgeCollection", () => {
+    it("returns an EdgeCollection instance for the collection", () => {
+      let name = "tomato";
+      let collection = db.edgeCollection(name);
+      expect(collection).to.be.an.instanceof(EdgeCollection);
+      expect(collection)
+        .to.have.a.property("name")
+        .that.equals(name);
+    });
+  });
+  describe("database.listCollections", () => {
+    let nonSystemCollectionNames = range(4).map(i => `c_${Date.now()}_${i}`);
+    let systemCollectionNames = range(4).map(i => `_c_${Date.now()}_${i}`);
+    before(done => {
       Promise.all([
-        ...nonSystemCollectionNames.map((name) => db.collection(name).create()),
-        ...systemCollectionNames.map((name) => db.collection(name).create({isSystem: true}))
+        ...nonSystemCollectionNames.map(name => db.collection(name).create()),
+        ...systemCollectionNames.map(name =>
+          db.collection(name).create({ isSystem: true })
+        )
       ])
         .then(() => void done())
-        .catch(done)
-    })
-    after((done) => {
+        .catch(done);
+    });
+    after(done => {
       Promise.all([
-        ...nonSystemCollectionNames.map((name) => db.collection(name).drop()),
-        ...systemCollectionNames.map((name) => db.collection(name).drop({isSystem: true}))
+        ...nonSystemCollectionNames.map(name => db.collection(name).drop()),
+        ...systemCollectionNames.map(name =>
+          db.collection(name).drop({ isSystem: true })
+        )
       ])
         .then(() => void done())
-        .catch(done)
-    })
-    it('fetches information about all non-system collections', (done) => {
-      db.listCollections()
-        .then((collections) => {
-          expect(collections.length).to.equal(nonSystemCollectionNames.length)
-          expect(collections.map((c) => c.name)).to.include.all.members(nonSystemCollectionNames)
-          done()
+        .catch(done);
+    });
+    it("fetches information about all non-system collections", done => {
+      db
+        .listCollections()
+        .then(collections => {
+          expect(collections.length).to.equal(nonSystemCollectionNames.length);
+          expect(collections.map(c => c.name)).to.include.all.members(
+            nonSystemCollectionNames
+          );
+          done();
         })
-        .catch(done)
-    })
-    it('includes system collections if explicitly passed false', (done) => {
-      db.listCollections(false)
-        .then((collections) => {
-          let allCollectionNames = nonSystemCollectionNames.concat(systemCollectionNames)
-          expect(collections.length).to.be.at.least(allCollectionNames.length)
-          expect(collections.map((c) => c.name)).to.include.all.members(allCollectionNames)
-          done()
+        .catch(done);
+    });
+    it("includes system collections if explicitly passed false", done => {
+      db
+        .listCollections(false)
+        .then(collections => {
+          let allCollectionNames = nonSystemCollectionNames.concat(
+            systemCollectionNames
+          );
+          expect(collections.length).to.be.at.least(allCollectionNames.length);
+          expect(collections.map(c => c.name)).to.include.all.members(
+            allCollectionNames
+          );
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('database.collections', () => {
-    let documentCollectionNames = range(4).map((i) => `dc_${Date.now()}_${i}`)
-    let edgeCollectionNames = range(4).map((i) => `ec_${Date.now()}_${i}`)
-    let systemCollectionNames = range(4).map((i) => `_c_${Date.now()}_${i}`)
-    before((done) => {
+        .catch(done);
+    });
+  });
+  describe("database.collections", () => {
+    let documentCollectionNames = range(4).map(i => `dc_${Date.now()}_${i}`);
+    let edgeCollectionNames = range(4).map(i => `ec_${Date.now()}_${i}`);
+    let systemCollectionNames = range(4).map(i => `_c_${Date.now()}_${i}`);
+    before(done => {
       Promise.all([
-        ...documentCollectionNames.map((name) => db.collection(name).create()),
-        ...edgeCollectionNames.map((name) => db.edgeCollection(name).create()),
-        ...systemCollectionNames.map((name) => db.collection(name).create({isSystem: true}))
+        ...documentCollectionNames.map(name => db.collection(name).create()),
+        ...edgeCollectionNames.map(name => db.edgeCollection(name).create()),
+        ...systemCollectionNames.map(name =>
+          db.collection(name).create({ isSystem: true })
+        )
       ])
         .then(() => void done())
-        .catch(done)
-    })
-    after((done) => {
+        .catch(done);
+    });
+    after(done => {
       Promise.all([
-        ...documentCollectionNames.map((name) => db.collection(name).drop()),
-        ...edgeCollectionNames.map((name) => db.edgeCollection(name).drop()),
-        ...systemCollectionNames.map((name) => db.collection(name).drop({isSystem: true}))
+        ...documentCollectionNames.map(name => db.collection(name).drop()),
+        ...edgeCollectionNames.map(name => db.edgeCollection(name).drop()),
+        ...systemCollectionNames.map(name =>
+          db.collection(name).drop({ isSystem: true })
+        )
       ])
         .then(() => void done())
-        .catch(done)
-    })
-    it('creates DocumentCollection and EdgeCollection instances', (done) => {
-      db.collections()
-        .then((collections) => {
-          let documentCollections = collections.filter((c) => c instanceof DocumentCollection)
-          let edgeCollections = collections.filter((c) => c instanceof EdgeCollection)
-          expect(documentCollections.length).to.equal(documentCollectionNames.length)
-          expect(documentCollections.map((c) => c.name)).to.include.all.members(documentCollectionNames)
-          expect(edgeCollections.length).to.equal(edgeCollectionNames.length)
-          expect(edgeCollections.map((c) => c.name)).to.include.all.members(edgeCollectionNames)
-          done()
+        .catch(done);
+    });
+    it("creates DocumentCollection and EdgeCollection instances", done => {
+      db
+        .collections()
+        .then(collections => {
+          let documentCollections = collections.filter(
+            c => c instanceof DocumentCollection
+          );
+          let edgeCollections = collections.filter(
+            c => c instanceof EdgeCollection
+          );
+          expect(documentCollections.length).to.equal(
+            documentCollectionNames.length
+          );
+          expect(documentCollections.map(c => c.name)).to.include.all.members(
+            documentCollectionNames
+          );
+          expect(edgeCollections.length).to.equal(edgeCollectionNames.length);
+          expect(edgeCollections.map(c => c.name)).to.include.all.members(
+            edgeCollectionNames
+          );
+          done();
         })
-        .catch(done)
-    })
-    it('includes system collections if explicitly passed false', (done) => {
-      db.collections(false)
-        .then((collections) => {
-          let documentCollections = collections.filter((c) => c instanceof DocumentCollection)
-          let edgeCollections = collections.filter((c) => c instanceof EdgeCollection)
-          let allDocumentCollectionNames = documentCollectionNames.concat(systemCollectionNames)
-          expect(documentCollections.length).to.be.at.least(allDocumentCollectionNames.length)
-          expect(documentCollections.map((c) => c.name)).to.include.all.members(allDocumentCollectionNames)
-          expect(edgeCollections.length).to.be.at.least(edgeCollectionNames.length)
-          expect(edgeCollections.map((c) => c.name)).to.include.all.members(edgeCollectionNames)
-          done()
+        .catch(done);
+    });
+    it("includes system collections if explicitly passed false", done => {
+      db
+        .collections(false)
+        .then(collections => {
+          let documentCollections = collections.filter(
+            c => c instanceof DocumentCollection
+          );
+          let edgeCollections = collections.filter(
+            c => c instanceof EdgeCollection
+          );
+          let allDocumentCollectionNames = documentCollectionNames.concat(
+            systemCollectionNames
+          );
+          expect(documentCollections.length).to.be.at.least(
+            allDocumentCollectionNames.length
+          );
+          expect(documentCollections.map(c => c.name)).to.include.all.members(
+            allDocumentCollectionNames
+          );
+          expect(edgeCollections.length).to.be.at.least(
+            edgeCollectionNames.length
+          );
+          expect(edgeCollections.map(c => c.name)).to.include.all.members(
+            edgeCollectionNames
+          );
+          done();
         })
-        .catch(done)
-    })
-  })
-})
+        .catch(done);
+    });
+  });
+});
diff --git a/test/03-accessing-graphs.js b/test/03-accessing-graphs.js
index 5942f491d..54e2dd84e 100644
--- a/test/03-accessing-graphs.js
+++ b/test/03-accessing-graphs.js
@@ -1,116 +1,139 @@
-import {describe, it, before, after} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
-import Graph from '../src/graph'
+import { after, before, describe, it } from "mocha";
 
-const range = (n) => Array.from(Array(n).keys())
+import { Database } from "../src";
+import Graph from "../src/graph";
+import { expect } from "chai";
 
-describe('Accessing graphs', () => {
-  let name = `testdb_${Date.now()}`
-  let db
-  before((done) => {
+const range = n => Array.from(Array(n).keys());
+
+describe("Accessing graphs", () => {
+  let name = `testdb_${Date.now()}`;
+  let db;
+  before(done => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-    })
-    db.createDatabase(name)
+    });
+    db
+      .createDatabase(name)
       .then(() => {
-        db.useDatabase(name)
-        done()
+        db.useDatabase(name);
+        done();
       })
-      .catch(done)
-  })
-  after((done) => {
-    db.useDatabase('_system')
-    db.dropDatabase(name)
+      .catch(done);
+  });
+  after(done => {
+    db.useDatabase("_system");
+    db
+      .dropDatabase(name)
       .then(() => void done())
-      .catch(done)
-  })
-  describe('database.graph', () => {
-    it('returns a Graph instance', () => {
-      let name = 'potato'
-      let graph = db.graph(name)
-      expect(graph).to.be.an.instanceof(Graph)
-      expect(graph).to.have.a.property('name').that.equals(name)
-    })
-  })
-  describe('database.listGraphs', () => {
-    let vertexCollectionNames = range(2).map((i) => `vc_${Date.now()}_${i}`)
-    let edgeCollectionNames = range(2).map((i) => `ec_${Date.now()}_${i}`)
-    let graphNames = range(4).map((i) => `g_${Date.now()}_${i}`)
-    before((done) => {
+      .catch(done);
+  });
+  describe("database.graph", () => {
+    it("returns a Graph instance", () => {
+      let name = "potato";
+      let graph = db.graph(name);
+      expect(graph).to.be.an.instanceof(Graph);
+      expect(graph)
+        .to.have.a.property("name")
+        .that.equals(name);
+    });
+  });
+  describe("database.listGraphs", () => {
+    let vertexCollectionNames = range(2).map(i => `vc_${Date.now()}_${i}`);
+    let edgeCollectionNames = range(2).map(i => `ec_${Date.now()}_${i}`);
+    let graphNames = range(4).map(i => `g_${Date.now()}_${i}`);
+    before(done => {
       Promise.all([
-        ...vertexCollectionNames.map((name) => db.collection(name).create()),
-        ...edgeCollectionNames.map((name) => db.edgeCollection(name).create())
+        ...vertexCollectionNames.map(name => db.collection(name).create()),
+        ...edgeCollectionNames.map(name => db.edgeCollection(name).create())
       ])
-        .then(() => Promise.all([
-          ...graphNames.map((name) => db.graph(name).create({
-            edgeDefinitions: edgeCollectionNames.map((name) => ({
-              collection: name,
-              from: vertexCollectionNames,
-              to: vertexCollectionNames
-            }))
-          }))
-        ]))
+        .then(() =>
+          Promise.all([
+            ...graphNames.map(name =>
+              db.graph(name).create({
+                edgeDefinitions: edgeCollectionNames.map(name => ({
+                  collection: name,
+                  from: vertexCollectionNames,
+                  to: vertexCollectionNames
+                }))
+              })
+            )
+          ])
+        )
         .then(() => void done())
-        .catch(done)
-    })
-    after((done) => {
-      Promise.all(graphNames.map((name) => db.graph(name).drop()))
-        .then(() => Promise.all(vertexCollectionNames.concat(edgeCollectionNames).map(
-          (name) => db.collection(name).drop()
-        )))
+        .catch(done);
+    });
+    after(done => {
+      Promise.all(graphNames.map(name => db.graph(name).drop()))
+        .then(() =>
+          Promise.all(
+            vertexCollectionNames
+              .concat(edgeCollectionNames)
+              .map(name => db.collection(name).drop())
+          )
+        )
         .then(() => void done())
-        .catch(done)
-    })
-    it('fetches information about all graphs', (done) => {
-      db.listGraphs()
-        .then((graphs) => {
-          expect(graphs.length).to.equal(graphNames.length)
-          expect(graphs.map((g) => g._key)).to.include.all.members(graphNames)
-          done()
+        .catch(done);
+    });
+    it("fetches information about all graphs", done => {
+      db
+        .listGraphs()
+        .then(graphs => {
+          expect(graphs.length).to.equal(graphNames.length);
+          expect(graphs.map(g => g._key)).to.include.all.members(graphNames);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('database.graphs', () => {
-    let vertexCollectionNames = range(2).map((i) => `vc_${Date.now()}_${i}`)
-    let edgeCollectionNames = range(2).map((i) => `ec_${Date.now()}_${i}`)
-    let graphNames = range(4).map((i) => `g_${Date.now()}_${i}`)
-    before((done) => {
+        .catch(done);
+    });
+  });
+  describe("database.graphs", () => {
+    let vertexCollectionNames = range(2).map(i => `vc_${Date.now()}_${i}`);
+    let edgeCollectionNames = range(2).map(i => `ec_${Date.now()}_${i}`);
+    let graphNames = range(4).map(i => `g_${Date.now()}_${i}`);
+    before(done => {
       Promise.all([
-        ...vertexCollectionNames.map((name) => db.collection(name).create()),
-        ...edgeCollectionNames.map((name) => db.edgeCollection(name).create())
+        ...vertexCollectionNames.map(name => db.collection(name).create()),
+        ...edgeCollectionNames.map(name => db.edgeCollection(name).create())
       ])
-        .then(() => Promise.all([
-          ...graphNames.map((name) => db.graph(name).create({
-            edgeDefinitions: edgeCollectionNames.map((name) => ({
-              collection: name,
-              from: vertexCollectionNames,
-              to: vertexCollectionNames
-            }))
-          }))
-        ]))
+        .then(() =>
+          Promise.all([
+            ...graphNames.map(name =>
+              db.graph(name).create({
+                edgeDefinitions: edgeCollectionNames.map(name => ({
+                  collection: name,
+                  from: vertexCollectionNames,
+                  to: vertexCollectionNames
+                }))
+              })
+            )
+          ])
+        )
         .then(() => void done())
-        .catch(done)
-    })
-    after((done) => {
-      Promise.all(graphNames.map((name) => db.graph(name).drop()))
-        .then(() => Promise.all(vertexCollectionNames.concat(edgeCollectionNames).map(
-          (name) => db.collection(name).drop()
-        )))
+        .catch(done);
+    });
+    after(done => {
+      Promise.all(graphNames.map(name => db.graph(name).drop()))
+        .then(() =>
+          Promise.all(
+            vertexCollectionNames
+              .concat(edgeCollectionNames)
+              .map(name => db.collection(name).drop())
+          )
+        )
         .then(() => void done())
-        .catch(done)
-    })
-    it('creates Graph instances', (done) => {
-      db.graphs()
-        .then((graphs) => {
-          expect(graphs.length).to.equal(graphNames.length)
-          expect(graphs.map((g) => g.name)).to.include.all.members(graphNames)
-          graphs.forEach((graph) => expect(graph).to.be.an.instanceof(Graph))
-          done()
+        .catch(done);
+    });
+    it("creates Graph instances", done => {
+      db
+        .graphs()
+        .then(graphs => {
+          expect(graphs.length).to.equal(graphNames.length);
+          expect(graphs.map(g => g.name)).to.include.all.members(graphNames);
+          graphs.forEach(graph => expect(graph).to.be.an.instanceof(Graph));
+          done();
         })
-        .catch(done)
-    })
-  })
-})
+        .catch(done);
+    });
+  });
+});
diff --git a/test/04-transactions.js b/test/04-transactions.js
index 736ef3314..5324aeaf1 100644
--- a/test/04-transactions.js
+++ b/test/04-transactions.js
@@ -1,7 +1,7 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('Transactions', () => {
-  describe('database.transaction', () => {
-    it('is missing tests')
-  })
-})
+describe("Transactions", () => {
+  describe("database.transaction", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/05-aql-queries.js b/test/05-aql-queries.js
index c62fa186c..5d78a759f 100644
--- a/test/05-aql-queries.js
+++ b/test/05-aql-queries.js
@@ -1,131 +1,174 @@
-import {describe, it, before, after} from 'mocha'
-import {expect} from 'chai'
-import {aqlQuery, Database} from '../src'
-import Cursor from '../src/cursor'
+import { Database, aqlQuery } from "../src";
+import { after, before, describe, it } from "mocha";
 
-describe('AQL queries', () => {
-  let name = `testdb_${Date.now()}`
-  let db
-  before((done) => {
+import Cursor from "../src/cursor";
+import { expect } from "chai";
+
+describe("AQL queries", () => {
+  let name = `testdb_${Date.now()}`;
+  let db;
+  before(done => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-    })
-    db.createDatabase(name)
+    });
+    db
+      .createDatabase(name)
       .then(() => {
-        db.useDatabase(name)
-        done()
+        db.useDatabase(name);
+        done();
       })
-      .catch(done)
-  })
-  after((done) => {
-    db.useDatabase('_system')
-    db.dropDatabase(name)
+      .catch(done);
+  });
+  after(done => {
+    db.useDatabase("_system");
+    db
+      .dropDatabase(name)
       .then(() => void done())
-      .catch(done)
-  })
-  describe('database.query', () => {
-    it('returns a cursor for the query result', (done) => {
-      db.query('RETURN 23')
-        .then((cursor) => {
-          expect(cursor).to.be.an.instanceof(Cursor)
-          done()
+      .catch(done);
+  });
+  describe("database.query", () => {
+    it("returns a cursor for the query result", done => {
+      db
+        .query("RETURN 23")
+        .then(cursor => {
+          expect(cursor).to.be.an.instanceof(Cursor);
+          done();
+        })
+        .catch(done);
+    });
+    it("supports bindVars", done => {
+      db
+        .query("RETURN @x", { x: 5 })
+        .then(cursor => cursor.next())
+        .then(value => {
+          expect(value).to.equal(5);
+          done();
         })
-        .catch(done)
-    })
-    it('supports bindVars', (done) => {
-      db.query('RETURN @x', {x: 5})
-        .then((cursor) => cursor.next())
-        .then((value) => {
-          expect(value).to.equal(5)
-          done()
+        .catch(done);
+    });
+    it("supports options", done => {
+      db
+        .query("FOR x IN 1..10 RETURN x", undefined, {
+          batchSize: 2,
+          count: true
         })
-        .catch(done)
-    })
-    it('supports options', (done) => {
-      db.query('FOR x IN 1..10 RETURN x', undefined, {batchSize: 2, count: true})
-        .then((cursor) => {
-          expect(cursor.count).to.equal(10)
-          expect(cursor._hasMore).to.equal(true)
-          done()
+        .then(cursor => {
+          expect(cursor.count).to.equal(10);
+          expect(cursor._hasMore).to.equal(true);
+          done();
         })
-        .catch(done)
-    })
-    it('supports AQB queries', (done) => {
-      db.query({toAQL: () => 'RETURN 42'})
-        .then((cursor) => cursor.next())
-        .then((value) => {
-          expect(value).to.equal(42)
-          done()
+        .catch(done);
+    });
+    it("supports AQB queries", done => {
+      db
+        .query({ toAQL: () => "RETURN 42" })
+        .then(cursor => cursor.next())
+        .then(value => {
+          expect(value).to.equal(42);
+          done();
         })
-        .catch(done)
-    })
-    it('supports query objects', (done) => {
-      db.query({query: 'RETURN 1337'})
-        .then((cursor) => cursor.next())
-        .then((value) => {
-          expect(value).to.equal(1337)
-          done()
+        .catch(done);
+    });
+    it("supports query objects", done => {
+      db
+        .query({ query: "RETURN 1337" })
+        .then(cursor => cursor.next())
+        .then(value => {
+          expect(value).to.equal(1337);
+          done();
         })
-        .catch(done)
-    })
-    it('supports compact queries', (done) => {
-      db.query({query: 'RETURN @potato', bindVars: {potato: 'tomato'}})
-        .then((cursor) => cursor.next())
-        .then((value) => {
-          expect(value).to.equal('tomato')
-          done()
+        .catch(done);
+    });
+    it("supports compact queries", done => {
+      db
+        .query({ query: "RETURN @potato", bindVars: { potato: "tomato" } })
+        .then(cursor => cursor.next())
+        .then(value => {
+          expect(value).to.equal("tomato");
+          done();
         })
-        .catch(done)
-    })
-    it('supports compact queries with options', (done) => {
-      let aql = {query: 'FOR x IN RANGE(1, @max) RETURN x', bindVars: {max: 10}}
-      db.query(aql, {batchSize: 2, count: true})
-        .then((cursor) => {
-          expect(cursor.count).to.equal(10)
-          expect(cursor._hasMore).to.equal(true)
-          done()
+        .catch(done);
+    });
+    it("supports compact queries with options", done => {
+      let aql = {
+        query: "FOR x IN RANGE(1, @max) RETURN x",
+        bindVars: { max: 10 }
+      };
+      db
+        .query(aql, { batchSize: 2, count: true })
+        .then(cursor => {
+          expect(cursor.count).to.equal(10);
+          expect(cursor._hasMore).to.equal(true);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('aqlQuery', () => {
-    it('correctly handles simple parameters', () => {
-      let values = [0, 42, -1, null, undefined, true, false, '', 'string', [1, 2, 3], {a: 'b'}]
+        .catch(done);
+    });
+  });
+  describe("aqlQuery", () => {
+    it("correctly handles simple parameters", () => {
+      let values = [
+        0,
+        42,
+        -1,
+        null,
+        undefined,
+        true,
+        false,
+        "",
+        "string",
+        [1, 2, 3],
+        { a: "b" }
+      ];
       let aql = aqlQuery`
-        A ${values[0]} B ${values[1]} C ${values[2]} D ${values[3]} E ${values[4]} F ${values[5]}
-        G ${values[6]} H ${values[7]} I ${values[8]} J ${values[9]} K ${values[10]} EOF
-      `
+        A ${values[0]} B ${values[1]} C ${values[2]} D ${values[3]} E ${
+        values[4]
+      } F ${values[5]}
+        G ${values[6]} H ${values[7]} I ${values[8]} J ${values[9]} K ${
+        values[10]
+      } EOF
+      `;
       expect(aql.query).to.equal(`
         A @value0 B @value1 C @value2 D @value3 E @value4 F @value5
         G @value6 H @value7 I @value8 J @value9 K @value10 EOF
-      `)
-      let bindVarNames = Object.keys(aql.bindVars).sort((a, b) => +a.substr(5) > +b.substr(5) ? 1 : -1)
+      `);
+      let bindVarNames = Object.keys(aql.bindVars).sort(
+        (a, b) => (+a.substr(5) > +b.substr(5) ? 1 : -1)
+      );
       expect(bindVarNames).to.eql([
-        'value0', 'value1', 'value2', 'value3', 'value4', 'value5',
-        'value6', 'value7', 'value8', 'value9', 'value10'
-      ])
-      expect(bindVarNames.map((k) => aql.bindVars[k])).to.eql(values)
-    })
-    it('correctly handles arangojs collection parameters', () => {
-      let collection = db.collection('potato')
-      let aql = aqlQuery`${collection}`
-      expect(aql.query).to.equal('@@value0')
-      expect(Object.keys(aql.bindVars)).to.eql(['@value0'])
-      expect(aql.bindVars['@value0']).to.equal('potato')
-    })
-    it('correctly handles ArangoDB collection parameters', () => {
+        "value0",
+        "value1",
+        "value2",
+        "value3",
+        "value4",
+        "value5",
+        "value6",
+        "value7",
+        "value8",
+        "value9",
+        "value10"
+      ]);
+      expect(bindVarNames.map(k => aql.bindVars[k])).to.eql(values);
+    });
+    it("correctly handles arangojs collection parameters", () => {
+      let collection = db.collection("potato");
+      let aql = aqlQuery`${collection}`;
+      expect(aql.query).to.equal("@@value0");
+      expect(Object.keys(aql.bindVars)).to.eql(["@value0"]);
+      expect(aql.bindVars["@value0"]).to.equal("potato");
+    });
+    it("correctly handles ArangoDB collection parameters", () => {
       class ArangoCollection {
-        constructor () {
-          this.name = 'tomato'
+        constructor() {
+          this.name = "tomato";
         }
       }
-      ArangoCollection.prototype.isArangoCollection = true
-      let collection = new ArangoCollection()
-      let aql = aqlQuery`${collection}`
-      expect(aql.query).to.equal('@@value0')
-      expect(Object.keys(aql.bindVars)).to.eql(['@value0'])
-      expect(aql.bindVars['@value0']).to.equal('tomato')
-    })
-  })
-})
+      ArangoCollection.prototype.isArangoCollection = true;
+      let collection = new ArangoCollection();
+      let aql = aqlQuery`${collection}`;
+      expect(aql.query).to.equal("@@value0");
+      expect(Object.keys(aql.bindVars)).to.eql(["@value0"]);
+      expect(aql.bindVars["@value0"]).to.equal("tomato");
+    });
+  });
+});
diff --git a/test/06-managing-functions.js b/test/06-managing-functions.js
index d883e42b6..002663451 100644
--- a/test/06-managing-functions.js
+++ b/test/06-managing-functions.js
@@ -1,13 +1,13 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('Managing functions', () => {
-  describe('database.listFunctions', () => {
-    it('is missing tests')
-  })
-  describe('database.createFunction', () => {
-    it('is missing tests')
-  })
-  describe('database.dropFunction', () => {
-    it('is missing tests')
-  })
-})
+describe("Managing functions", () => {
+  describe("database.listFunctions", () => {
+    it("is missing tests");
+  });
+  describe("database.createFunction", () => {
+    it("is missing tests");
+  });
+  describe("database.dropFunction", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/07-routes.js b/test/07-routes.js
index b2e4a02b9..2a81e3e3b 100644
--- a/test/07-routes.js
+++ b/test/07-routes.js
@@ -1,53 +1,54 @@
-import {describe, it} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
-import Route from '../src/route'
+import { describe, it } from "mocha";
 
-describe('Arbitrary HTTP routes', () => {
+import { Database } from "../src";
+import Route from "../src/route";
+import { expect } from "chai";
+
+describe("Arbitrary HTTP routes", () => {
   const db = new Database({
-    url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+    url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
     arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-  })
-  describe('database.route', () => {
-    it('returns a Route instance', () => {
-      let route = db.route()
-      expect(route).to.be.an.instanceof(Route)
-    })
-    it('creates a route for the given path', () => {
-      let path = '/hi'
-      let route = db.route(path)
-      expect(route._path).to.equal(path)
-    })
-    it('passes the given headers to the new route', () => {
-      let route = db.route('/hello', {'x-magic': 'awesome'})
-      expect(route._headers).to.have.a.property('x-magic', 'awesome')
-    })
-  })
-})
+  });
+  describe("database.route", () => {
+    it("returns a Route instance", () => {
+      let route = db.route();
+      expect(route).to.be.an.instanceof(Route);
+    });
+    it("creates a route for the given path", () => {
+      let path = "/hi";
+      let route = db.route(path);
+      expect(route._path).to.equal(path);
+    });
+    it("passes the given headers to the new route", () => {
+      let route = db.route("/hello", { "x-magic": "awesome" });
+      expect(route._headers).to.have.a.property("x-magic", "awesome");
+    });
+  });
+});
 
-describe('Route API', () => {
-  describe('route.route', () => {
-    it('is missing tests')
-  })
-  describe('route.get', () => {
-    it('is missing tests')
-  })
-  describe('route.post', () => {
-    it('is missing tests')
-  })
-  describe('route.put', () => {
-    it('is missing tests')
-  })
-  describe('route.patch', () => {
-    it('is missing tests')
-  })
-  describe('route.delete', () => {
-    it('is missing tests')
-  })
-  describe('route.head', () => {
-    it('is missing tests')
-  })
-  describe('route.request', () => {
-    it('is missing tests')
-  })
-})
+describe("Route API", () => {
+  describe("route.route", () => {
+    it("is missing tests");
+  });
+  describe("route.get", () => {
+    it("is missing tests");
+  });
+  describe("route.post", () => {
+    it("is missing tests");
+  });
+  describe("route.put", () => {
+    it("is missing tests");
+  });
+  describe("route.patch", () => {
+    it("is missing tests");
+  });
+  describe("route.delete", () => {
+    it("is missing tests");
+  });
+  describe("route.head", () => {
+    it("is missing tests");
+  });
+  describe("route.request", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/08-cursors.js b/test/08-cursors.js
index fc33216d6..b5f0778c2 100644
--- a/test/08-cursors.js
+++ b/test/08-cursors.js
@@ -1,261 +1,294 @@
-import {describe, it, before, beforeEach} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
+import { before, beforeEach, describe, it } from "mocha";
 
-const aqlQuery = 'FOR i In 0..10 RETURN i'
-const aqlResult = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+import { Database } from "../src";
+import { expect } from "chai";
 
-function sleep (ms) {
-  var date = Date.now()
-  var curDate = null
+const aqlQuery = "FOR i In 0..10 RETURN i";
+const aqlResult = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
+
+function sleep(ms) {
+  var date = Date.now();
+  var curDate = null;
   do {
-    curDate = Date.now()
-  } while (curDate - date < ms)
+    curDate = Date.now();
+  } while (curDate - date < ms);
 }
 
-describe('Cursor API', () => {
-  let db
-  let cursor
+describe("Cursor API", () => {
+  let db;
+  let cursor;
   before(() => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-    })
-  })
-  beforeEach((done) => {
-    db.query(aqlQuery)
-      .then((c) => {
-        cursor = c
-        done()
+    });
+  });
+  beforeEach(done => {
+    db
+      .query(aqlQuery)
+      .then(c => {
+        cursor = c;
+        done();
       })
-      .catch(done)
-  })
-  describe('cursor.all', () => {
-    it('returns an Array of all results', (done) => {
-      cursor.all()
-        .then((vals) => {
-          expect(vals).to.eql(aqlResult)
-          done()
+      .catch(done);
+  });
+  describe("cursor.all", () => {
+    it("returns an Array of all results", done => {
+      cursor
+        .all()
+        .then(vals => {
+          expect(vals).to.eql(aqlResult);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('cursor.next', () => {
-    it('returns the next result of the Cursor', (done) => {
-      cursor.next()
-        .then((val) => {
-          expect(val).to.equal(0)
-          return cursor.next()
+        .catch(done);
+    });
+  });
+  describe("cursor.next", () => {
+    it("returns the next result of the Cursor", done => {
+      cursor
+        .next()
+        .then(val => {
+          expect(val).to.equal(0);
+          return cursor.next();
         })
-        .then((val) => {
-          expect(val).to.equal(1)
-          done()
+        .then(val => {
+          expect(val).to.equal(1);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('cursor.hasNext', () => {
-    it('returns true if the Cursor has more results', (done) => {
-      expect(cursor.hasNext()).to.equal(true)
-      cursor.next()
-        .then((val) => {
-          expect(val).to.be.a('number')
-          done()
+        .catch(done);
+    });
+  });
+  describe("cursor.hasNext", () => {
+    it("returns true if the Cursor has more results", done => {
+      expect(cursor.hasNext()).to.equal(true);
+      cursor
+        .next()
+        .then(val => {
+          expect(val).to.be.a("number");
+          done();
         })
-        .catch(done)
-    })
-    it('returns false if the Cursor is empty', (done) => {
-      cursor.all()
+        .catch(done);
+    });
+    it("returns false if the Cursor is empty", done => {
+      cursor
+        .all()
         .then(() => {
-          expect(cursor.hasNext()).to.equal(false)
-          done()
+          expect(cursor.hasNext()).to.equal(false);
+          done();
         })
-        .catch(done)
-    })
-    it('returns true after first batch is consumed', (done) => {
-      db.query(aqlQuery, {}, {batchSize: 1})
-      .then((cursor) => {
-        expect(cursor._result.length).to.equal(1)
-        cursor.next()
-        expect(cursor._result.length).to.equal(0)
-        expect(cursor.hasNext()).to.equal(true)
-        done()
-      })
-      .catch(done)
-    })
-    it('returns false after last batch is consumed', (done) => {
-      db.query('FOR i In 0..1 RETURN i', {}, {batchSize: 1})
-      .then((cursor) => {
-        expect(cursor.hasNext()).to.equal(true)
-        expect(cursor._result.length).to.equal(1)
-        cursor.next().then((val) => {
-          expect(val).to.equal(0)
-          expect(cursor.hasNext()).to.equal(true)
-          expect(cursor._result.length).to.equal(0)
-          return cursor.next()
-        }).then((val) => {
-          expect(val).to.equal(1)
-          expect(cursor.hasNext()).to.equal(false)
-          expect(cursor._result.length).to.equal(0)
-          done()
+        .catch(done);
+    });
+    it("returns true after first batch is consumed", done => {
+      db
+        .query(aqlQuery, {}, { batchSize: 1 })
+        .then(cursor => {
+          expect(cursor._result.length).to.equal(1);
+          cursor.next();
+          expect(cursor._result.length).to.equal(0);
+          expect(cursor.hasNext()).to.equal(true);
+          done();
         })
-      })
-      .catch(done)
-    })
-    it('returns false after last result is consumed', (done) => {
-      db.query('FOR i In 0..1 RETURN i')
-      .then((cursor) => {
-        expect(cursor.hasNext()).to.equal(true)
-        expect(cursor._result.length).to.equal(2)
-        cursor.next().then((val) => {
-          expect(val).to.equal(0)
-          expect(cursor.hasNext()).to.equal(true)
-          expect(cursor._result.length).to.equal(1)
-          return cursor.next()
-        }).then((val) => {
-          expect(val).to.equal(1)
-          expect(cursor.hasNext()).to.equal(false)
-          expect(cursor._result.length).to.equal(0)
-          done()
+        .catch(done);
+    });
+    it("returns false after last batch is consumed", done => {
+      db
+        .query("FOR i In 0..1 RETURN i", {}, { batchSize: 1 })
+        .then(cursor => {
+          expect(cursor.hasNext()).to.equal(true);
+          expect(cursor._result.length).to.equal(1);
+          cursor
+            .next()
+            .then(val => {
+              expect(val).to.equal(0);
+              expect(cursor.hasNext()).to.equal(true);
+              expect(cursor._result.length).to.equal(0);
+              return cursor.next();
+            })
+            .then(val => {
+              expect(val).to.equal(1);
+              expect(cursor.hasNext()).to.equal(false);
+              expect(cursor._result.length).to.equal(0);
+              done();
+            });
         })
-      })
-      .catch(done)
-    })
-    it.skip('returns 404 after timeout', (done) => {
-      db.query('FOR i In 0..1 RETURN i', {}, {batchSize: 1, ttl: 1})
-      .then((cursor) => {
-        expect(cursor.hasNext()).to.equal(true)
-        expect(cursor._result.length).to.equal(1)
-        cursor.next().then((val) => {
-          expect(val).to.equal(0)
-          expect(cursor.hasNext()).to.equal(true)
-          expect(cursor._result.length).to.equal(0)
-          sleep(3000)
-          return cursor.next()
-        }).catch((err) => {
-          expect(err.code).to.equal(404)
-          done()
+        .catch(done);
+    });
+    it("returns false after last result is consumed", done => {
+      db
+        .query("FOR i In 0..1 RETURN i")
+        .then(cursor => {
+          expect(cursor.hasNext()).to.equal(true);
+          expect(cursor._result.length).to.equal(2);
+          cursor
+            .next()
+            .then(val => {
+              expect(val).to.equal(0);
+              expect(cursor.hasNext()).to.equal(true);
+              expect(cursor._result.length).to.equal(1);
+              return cursor.next();
+            })
+            .then(val => {
+              expect(val).to.equal(1);
+              expect(cursor.hasNext()).to.equal(false);
+              expect(cursor._result.length).to.equal(0);
+              done();
+            });
+        })
+        .catch(done);
+    });
+    it.skip("returns 404 after timeout", done => {
+      db
+        .query("FOR i In 0..1 RETURN i", {}, { batchSize: 1, ttl: 1 })
+        .then(cursor => {
+          expect(cursor.hasNext()).to.equal(true);
+          expect(cursor._result.length).to.equal(1);
+          cursor
+            .next()
+            .then(val => {
+              expect(val).to.equal(0);
+              expect(cursor.hasNext()).to.equal(true);
+              expect(cursor._result.length).to.equal(0);
+              sleep(3000);
+              return cursor.next();
+            })
+            .catch(err => {
+              expect(err.code).to.equal(404);
+              done();
+            });
+        })
+        .catch(done);
+    });
+    it("returns false after last result is consumed (with large amount of results)", done => {
+      const EXPECTED_LENGTH = 100000;
+      const loadMore = function(cursor, totalLength) {
+        cursor
+          .next()
+          .then(() => {
+            totalLength++;
+            expect(cursor.hasNext()).to.equal(totalLength !== EXPECTED_LENGTH);
+            if (cursor.hasNext()) {
+              loadMore(cursor, totalLength);
+            } else {
+              done();
+            }
+          })
+          .catch(done);
+      };
+      db
+        .query(`FOR i In 1..${EXPECTED_LENGTH} RETURN i`)
+        .then(cursor => loadMore(cursor, 0))
+        .catch(done);
+    });
+  });
+  describe("cursor.each", () => {
+    it("invokes the callback for each value", done => {
+      let results = [];
+      cursor
+        .each(value => {
+          results.push(value);
         })
-      })
-      .catch(done)
-    })
-    it('returns false after last result is consumed (with large amount of results)', (done) => {
-      const EXPECTED_LENGTH = 100000
-      const loadMore = function (cursor, totalLength) {
-        cursor.next().then(() => {
-          totalLength++
-          expect(cursor.hasNext()).to.equal(totalLength !== EXPECTED_LENGTH)
-          if (cursor.hasNext()) {
-            loadMore(cursor, totalLength)
-          } else {
-            done()
-          }
-        }).catch(done)
-      }
-      db.query(`FOR i In 1..${EXPECTED_LENGTH} RETURN i`).then((cursor) => loadMore(cursor, 0)).catch(done)
-    })
-  })
-  describe('cursor.each', () => {
-    it('invokes the callback for each value', (done) => {
-      let results = []
-      cursor.each((value) => {
-        results.push(value)
-      })
         .then(() => {
-          expect(results).to.eql(aqlResult)
-          done()
+          expect(results).to.eql(aqlResult);
+          done();
+        })
+        .catch(done);
+    });
+    it("aborts if the callback returns false", done => {
+      let results = [];
+      cursor
+        .each(value => {
+          results.push(value);
+          if (value === 5) return false;
         })
-        .catch(done)
-    })
-    it('aborts if the callback returns false', (done) => {
-      let results = []
-      cursor.each((value) => {
-        results.push(value)
-        if (value === 5) return false
-      })
         .then(() => {
-          expect(results).to.eql([0, 1, 2, 3, 4, 5])
-          done()
+          expect(results).to.eql([0, 1, 2, 3, 4, 5]);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('cursor.every', () => {
-    it('returns true if the callback returns a truthy value for every item', (done) => {
-      let results = []
-      cursor.every((value) => {
-        if (results.indexOf(value) !== -1) return false
-        results.push(value)
-        return true
-      })
-        .then((result) => {
-          expect(results).to.eql(aqlResult)
-          expect(result).to.equal(true)
-          done()
+        .catch(done);
+    });
+  });
+  describe("cursor.every", () => {
+    it("returns true if the callback returns a truthy value for every item", done => {
+      let results = [];
+      cursor
+        .every(value => {
+          if (results.indexOf(value) !== -1) return false;
+          results.push(value);
+          return true;
         })
-        .catch(done)
-    })
-    it('returns false if the callback returns a non-truthy value for any item', (done) => {
-      let results = []
-      cursor.every((value) => {
-        results.push(value)
-        if (value < 5) return true
-      })
-        .then((result) => {
-          expect(results).to.eql([0, 1, 2, 3, 4, 5])
-          expect(result).to.equal(false)
-          done()
+        .then(result => {
+          expect(results).to.eql(aqlResult);
+          expect(result).to.equal(true);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('cursor.some', () => {
-    it('returns false if the callback returns a non-truthy value for every item', (done) => {
-      let results = []
-      cursor.some((value) => {
-        if (results.indexOf(value) !== -1) return true
-        results.push(value)
-        return false
-      })
-        .then((result) => {
-          expect(results).to.eql(aqlResult)
-          expect(result).to.equal(false)
-          done()
+        .catch(done);
+    });
+    it("returns false if the callback returns a non-truthy value for any item", done => {
+      let results = [];
+      cursor
+        .every(value => {
+          results.push(value);
+          if (value < 5) return true;
         })
-        .catch(done)
-    })
-    it('returns true if the callback returns a truthy value for any item', (done) => {
-      let results = []
-      cursor.some((value) => {
-        results.push(value)
-        if (value >= 5) return true
-      })
-        .then((result) => {
-          expect(results).to.eql([0, 1, 2, 3, 4, 5])
-          expect(result).to.equal(true)
-          done()
+        .then(result => {
+          expect(results).to.eql([0, 1, 2, 3, 4, 5]);
+          expect(result).to.equal(false);
+          done();
+        })
+        .catch(done);
+    });
+  });
+  describe("cursor.some", () => {
+    it("returns false if the callback returns a non-truthy value for every item", done => {
+      let results = [];
+      cursor
+        .some(value => {
+          if (results.indexOf(value) !== -1) return true;
+          results.push(value);
+          return false;
+        })
+        .then(result => {
+          expect(results).to.eql(aqlResult);
+          expect(result).to.equal(false);
+          done();
+        })
+        .catch(done);
+    });
+    it("returns true if the callback returns a truthy value for any item", done => {
+      let results = [];
+      cursor
+        .some(value => {
+          results.push(value);
+          if (value >= 5) return true;
+        })
+        .then(result => {
+          expect(results).to.eql([0, 1, 2, 3, 4, 5]);
+          expect(result).to.equal(true);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('cursor.map', () => {
-    it('maps all result values over the callback', (done) => {
-      cursor.map((value) => value * 2)
-        .then((results) => {
-          expect(results).to.eql(aqlResult.map((value) => value * 2))
-          done()
+        .catch(done);
+    });
+  });
+  describe("cursor.map", () => {
+    it("maps all result values over the callback", done => {
+      cursor
+        .map(value => value * 2)
+        .then(results => {
+          expect(results).to.eql(aqlResult.map(value => value * 2));
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('cursor.reduce', () => {
-    it('reduces the result values with the callback', (done) => {
-      cursor.reduce((a, b) => a + b)
-        .then((result) => {
-          expect(result).to.eql(aqlResult.reduce((a, b) => a + b))
-          done()
+        .catch(done);
+    });
+  });
+  describe("cursor.reduce", () => {
+    it("reduces the result values with the callback", done => {
+      cursor
+        .reduce((a, b) => a + b)
+        .then(result => {
+          expect(result).to.eql(aqlResult.reduce((a, b) => a + b));
+          done();
         })
-        .catch(done)
-    })
-  })
-})
+        .catch(done);
+    });
+  });
+});
diff --git a/test/09-collection-metadata.js b/test/09-collection-metadata.js
index acf3013d9..c1da9916f 100644
--- a/test/09-collection-metadata.js
+++ b/test/09-collection-metadata.js
@@ -1,22 +1,22 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('Collection metadata', () => {
-  describe('collection.get', () => {
-    it('is missing tests')
-  })
-  describe('collection.properties', () => {
-    it('is missing tests')
-  })
-  describe('collection.count', () => {
-    it('is missing tests')
-  })
-  describe('collection.figures', () => {
-    it('is missing tests')
-  })
-  describe('collection.revision', () => {
-    it('is missing tests')
-  })
-  describe('collection.checksum', () => {
-    it('is missing tests')
-  })
-})
+describe("Collection metadata", () => {
+  describe("collection.get", () => {
+    it("is missing tests");
+  });
+  describe("collection.properties", () => {
+    it("is missing tests");
+  });
+  describe("collection.count", () => {
+    it("is missing tests");
+  });
+  describe("collection.figures", () => {
+    it("is missing tests");
+  });
+  describe("collection.revision", () => {
+    it("is missing tests");
+  });
+  describe("collection.checksum", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/10-manipulating-collections.js b/test/10-manipulating-collections.js
index 5f4c81564..3678c066f 100644
--- a/test/10-manipulating-collections.js
+++ b/test/10-manipulating-collections.js
@@ -1,28 +1,28 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('Manipulating collections', () => {
-  describe('collection.create', () => {
-    it('is missing tests')
-  })
-  describe('collection.load', () => {
-    it('is missing tests')
-  })
-  describe('collection.unload', () => {
-    it('is missing tests')
-  })
-  describe('collection.setProperties', () => {
-    it('is missing tests')
-  })
-  describe('collection.rename', () => {
-    it('is missing tests')
-  })
-  describe('collection.rotate', () => {
-    it('is missing tests')
-  })
-  describe('collection.truncate', () => {
-    it('is missing tests')
-  })
-  describe('collection.drop', () => {
-    it('is missing tests')
-  })
-})
+describe("Manipulating collections", () => {
+  describe("collection.create", () => {
+    it("is missing tests");
+  });
+  describe("collection.load", () => {
+    it("is missing tests");
+  });
+  describe("collection.unload", () => {
+    it("is missing tests");
+  });
+  describe("collection.setProperties", () => {
+    it("is missing tests");
+  });
+  describe("collection.rename", () => {
+    it("is missing tests");
+  });
+  describe("collection.rotate", () => {
+    it("is missing tests");
+  });
+  describe("collection.truncate", () => {
+    it("is missing tests");
+  });
+  describe("collection.drop", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/11-managing-indexes.js b/test/11-managing-indexes.js
index 4fa8bbcf4..2483ee711 100644
--- a/test/11-managing-indexes.js
+++ b/test/11-managing-indexes.js
@@ -1,34 +1,34 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('Managing indexes', () => {
-  describe('collection.createIndex', () => {
-    it('is missing tests')
-  })
-  describe('collection.createCapConstraint', () => {
-    it('is missing tests')
-  })
-  describe('collection.createHashIndex', () => {
-    it('is missing tests')
-  })
-  describe('collection.createSkipList', () => {
-    it('is missing tests')
-  })
-  describe('collection.createPersistentIndex', () => {
-    it('is missing tests')
-  })
-  describe('collection.createGeoIndex', () => {
-    it('is missing tests')
-  })
-  describe('collection.createFulltextIndex', () => {
-    it('is missing tests')
-  })
-  describe('collection.index', () => {
-    it('is missing tests')
-  })
-  describe('collection.indexes', () => {
-    it('is missing tests')
-  })
-  describe('collection.dropIndex', () => {
-    it('is missing tests')
-  })
-})
+describe("Managing indexes", () => {
+  describe("collection.createIndex", () => {
+    it("is missing tests");
+  });
+  describe("collection.createCapConstraint", () => {
+    it("is missing tests");
+  });
+  describe("collection.createHashIndex", () => {
+    it("is missing tests");
+  });
+  describe("collection.createSkipList", () => {
+    it("is missing tests");
+  });
+  describe("collection.createPersistentIndex", () => {
+    it("is missing tests");
+  });
+  describe("collection.createGeoIndex", () => {
+    it("is missing tests");
+  });
+  describe("collection.createFulltextIndex", () => {
+    it("is missing tests");
+  });
+  describe("collection.index", () => {
+    it("is missing tests");
+  });
+  describe("collection.indexes", () => {
+    it("is missing tests");
+  });
+  describe("collection.dropIndex", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/12-simple-queries.js b/test/12-simple-queries.js
index 87fb45686..721fc155c 100644
--- a/test/12-simple-queries.js
+++ b/test/12-simple-queries.js
@@ -1,178 +1,206 @@
-import {describe, it, before, after, beforeEach, afterEach} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
-import Cursor from '../src/cursor'
+import { after, afterEach, before, beforeEach, describe, it } from "mocha";
 
-const range = (n) => Array.from(Array(n).keys())
-const alpha = (i) => String.fromCharCode('a'.charCodeAt(0) + i)
-const ARANGO_VERSION = Number(process.env.ARANGO_VERSION || 30000)
-const describe2x = ARANGO_VERSION < 30000 ? describe : describe.skip
+import Cursor from "../src/cursor";
+import { Database } from "../src";
+import { expect } from "chai";
 
-describe('Simple queries', () => {
-  let name = `testdb_${Date.now()}`
-  let db
-  let collection
-  before((done) => {
+const range = n => Array.from(Array(n).keys());
+const alpha = i => String.fromCharCode("a".charCodeAt(0) + i);
+const ARANGO_VERSION = Number(process.env.ARANGO_VERSION || 30000);
+const describe2x = ARANGO_VERSION < 30000 ? describe : describe.skip;
+
+describe("Simple queries", () => {
+  let name = `testdb_${Date.now()}`;
+  let db;
+  let collection;
+  before(done => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: ARANGO_VERSION
-    })
-    db.createDatabase(name)
+    });
+    db
+      .createDatabase(name)
       .then(() => {
-        db.useDatabase(name)
-        done()
+        db.useDatabase(name);
+        done();
       })
-      .catch(done)
-  })
-  after((done) => {
-    db.useDatabase('_system')
-    db.dropDatabase(name)
+      .catch(done);
+  });
+  after(done => {
+    db.useDatabase("_system");
+    db
+      .dropDatabase(name)
       .then(() => void done())
-      .catch(done)
-  })
-  beforeEach((done) => {
-    collection = db.collection(`c_${Date.now()}`)
-    collection.create()
-      .then(() => range(10).reduce((p, v) => p.then(() => collection.save({
-        _key: alpha(v),
-        value: v + 1,
-        group: Math.floor(v / 2) + 1
-      })), Promise.resolve()))
+      .catch(done);
+  });
+  beforeEach(done => {
+    collection = db.collection(`c_${Date.now()}`);
+    collection
+      .create()
+      .then(() =>
+        range(10).reduce(
+          (p, v) =>
+            p.then(() =>
+              collection.save({
+                _key: alpha(v),
+                value: v + 1,
+                group: Math.floor(v / 2) + 1
+              })
+            ),
+          Promise.resolve()
+        )
+      )
       .then(() => void done())
-      .catch(done)
-  })
-  afterEach(function (done) {
-    this.timeout(10000)
-    collection.drop()
+      .catch(done);
+  });
+  afterEach(function(done) {
+    this.timeout(10000);
+    collection
+      .drop()
       .then(() => void done())
-      .catch(done)
-  })
-  describe('collection.all', () => {
-    it('returns a cursor for all documents in the collection', (done) => {
-      collection.all()
-        .then((cursor) => {
-          expect(cursor).to.be.an.instanceof(Cursor)
-          expect(cursor.count).to.equal(10)
-          return cursor.all()
+      .catch(done);
+  });
+  describe("collection.all", () => {
+    it("returns a cursor for all documents in the collection", done => {
+      collection
+        .all()
+        .then(cursor => {
+          expect(cursor).to.be.an.instanceof(Cursor);
+          expect(cursor.count).to.equal(10);
+          return cursor.all();
         })
-        .then((arr) => {
-          expect(arr).to.have.length(10)
-          arr.forEach((doc) => {
-            expect(doc).to.have.keys('_key', '_id', '_rev', 'value', 'group')
-            expect(doc._id).to.equal(`${collection.name}/${doc._key}`)
-            expect(doc.group).to.equal(Math.floor((doc.value - 1) / 2) + 1)
-          })
-          expect(arr.map((d) => d.value).sort()).to.eql(range(10).map((i) => i + 1).sort())
-          expect(arr.map((d) => d._key).sort()).to.eql(range(10).map(alpha).sort())
-          done()
+        .then(arr => {
+          expect(arr).to.have.length(10);
+          arr.forEach(doc => {
+            expect(doc).to.have.keys("_key", "_id", "_rev", "value", "group");
+            expect(doc._id).to.equal(`${collection.name}/${doc._key}`);
+            expect(doc.group).to.equal(Math.floor((doc.value - 1) / 2) + 1);
+          });
+          expect(arr.map(d => d.value).sort()).to.eql(
+            range(10)
+              .map(i => i + 1)
+              .sort()
+          );
+          expect(arr.map(d => d._key).sort()).to.eql(
+            range(10)
+              .map(alpha)
+              .sort()
+          );
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('collection.any', () => {
-    it('returns a random document from the collection', (done) => {
-      collection.any()
-        .then((doc) => {
-          expect(doc).to.have.keys('_key', '_id', '_rev', 'value', 'group')
-          expect(doc._key).to.equal(alpha(doc.value - 1))
-          expect(doc._id).to.equal(`${collection.name}/${doc._key}`)
-          expect(doc.value).to.be.within(1, 10)
-          expect(doc.group).to.equal(Math.floor((doc.value - 1) / 2) + 1)
-          done()
+        .catch(done);
+    });
+  });
+  describe("collection.any", () => {
+    it("returns a random document from the collection", done => {
+      collection
+        .any()
+        .then(doc => {
+          expect(doc).to.have.keys("_key", "_id", "_rev", "value", "group");
+          expect(doc._key).to.equal(alpha(doc.value - 1));
+          expect(doc._id).to.equal(`${collection.name}/${doc._key}`);
+          expect(doc.value).to.be.within(1, 10);
+          expect(doc.group).to.equal(Math.floor((doc.value - 1) / 2) + 1);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe2x('collection.first', () => {
-    it('returns the first document in the collection', (done) => {
-      collection.first()
-        .then((doc) => {
-          expect(doc).to.have.keys('_key', '_id', '_rev', 'value', 'group')
-          expect(doc._key).to.equal('a')
-          expect(doc._id).to.equal(`${collection.name}/${doc._key}`)
-          expect(doc.value).to.equal(1)
-          expect(doc.group).to.equal(1)
-          done()
+        .catch(done);
+    });
+  });
+  describe2x("collection.first", () => {
+    it("returns the first document in the collection", done => {
+      collection
+        .first()
+        .then(doc => {
+          expect(doc).to.have.keys("_key", "_id", "_rev", "value", "group");
+          expect(doc._key).to.equal("a");
+          expect(doc._id).to.equal(`${collection.name}/${doc._key}`);
+          expect(doc.value).to.equal(1);
+          expect(doc.group).to.equal(1);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe2x('collection.last', () => {
-    it('returns the last document in the collection', (done) => {
-      collection.last()
-        .then((doc) => {
-          expect(doc).to.have.keys('_key', '_id', '_rev', 'value', 'group')
-          expect(doc._key).to.equal(alpha(9))
-          expect(doc._id).to.equal(`${collection.name}/${doc._key}`)
-          expect(doc.value).to.equal(10)
-          expect(doc.group).to.equal(5)
-          done()
+        .catch(done);
+    });
+  });
+  describe2x("collection.last", () => {
+    it("returns the last document in the collection", done => {
+      collection
+        .last()
+        .then(doc => {
+          expect(doc).to.have.keys("_key", "_id", "_rev", "value", "group");
+          expect(doc._key).to.equal(alpha(9));
+          expect(doc._id).to.equal(`${collection.name}/${doc._key}`);
+          expect(doc.value).to.equal(10);
+          expect(doc.group).to.equal(5);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('collection.byExample', () => {
-    it('returns all documents matching the example', (done) => {
-      collection.byExample({group: 2})
-        .then((cursor) => {
-          expect(cursor).to.be.an.instanceof(Cursor)
-          return cursor.all()
+        .catch(done);
+    });
+  });
+  describe("collection.byExample", () => {
+    it("returns all documents matching the example", done => {
+      collection
+        .byExample({ group: 2 })
+        .then(cursor => {
+          expect(cursor).to.be.an.instanceof(Cursor);
+          return cursor.all();
         })
-        .then((arr) => {
-          expect(arr).to.have.length(2)
-          arr.forEach((doc) => {
-            expect(doc).to.have.keys('_key', '_id', '_rev', 'value', 'group')
-            expect(doc._id).to.equal(`${collection.name}/${doc._key}`)
-            expect(doc.group).to.equal(2)
-          })
-          expect(arr.map((d) => d._key).sort()).to.eql(['c', 'd'])
-          expect(arr.map((d) => d.value).sort()).to.eql([3, 4])
-          done()
+        .then(arr => {
+          expect(arr).to.have.length(2);
+          arr.forEach(doc => {
+            expect(doc).to.have.keys("_key", "_id", "_rev", "value", "group");
+            expect(doc._id).to.equal(`${collection.name}/${doc._key}`);
+            expect(doc.group).to.equal(2);
+          });
+          expect(arr.map(d => d._key).sort()).to.eql(["c", "d"]);
+          expect(arr.map(d => d.value).sort()).to.eql([3, 4]);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('collection.firstExample', () => {
-    it('returns the first document matching the example', (done) => {
-      collection.firstExample({group: 2})
-        .then((doc) => {
-          expect(doc).to.have.keys('_key', '_id', '_rev', 'value', 'group')
-          expect(doc._key).to.match(/^[cd]$/)
-          expect(doc._id).to.equal(`${collection.name}/${doc._key}`)
-          expect(doc.group).to.equal(2)
-          done()
+        .catch(done);
+    });
+  });
+  describe("collection.firstExample", () => {
+    it("returns the first document matching the example", done => {
+      collection
+        .firstExample({ group: 2 })
+        .then(doc => {
+          expect(doc).to.have.keys("_key", "_id", "_rev", "value", "group");
+          expect(doc._key).to.match(/^[cd]$/);
+          expect(doc._id).to.equal(`${collection.name}/${doc._key}`);
+          expect(doc.group).to.equal(2);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('collection.removeByExample', () => {
-    it('is missing tests')
-  })
-  describe('collection.replaceByExample', () => {
-    it('is missing tests')
-  })
-  describe('collection.updateByExample', () => {
-    it('is missing tests')
-  })
+        .catch(done);
+    });
+  });
+  describe("collection.removeByExample", () => {
+    it("is missing tests");
+  });
+  describe("collection.replaceByExample", () => {
+    it("is missing tests");
+  });
+  describe("collection.updateByExample", () => {
+    it("is missing tests");
+  });
   if (ARANGO_VERSION >= 20600) {
-    describe2x('collection.lookupByKeys', () => {
-      it('returns the documents with the given keys', (done) => {
-        collection.lookupByKeys(['b', 'c', 'd'])
-          .then((arr) => {
-            expect(arr).to.have.length(3)
-            arr.forEach((doc) => {
-              expect(doc).to.have.keys('_key', '_id', '_rev', 'value', 'group')
-              expect(doc._id).to.equal(`${collection.name}/${doc._key}`)
-              expect(doc.group).to.equal(Math.floor((doc.value - 1) / 2) + 1)
-            })
-            expect(arr.map((d) => d._key)).to.eql(['b', 'c', 'd'])
-            done()
+    describe2x("collection.lookupByKeys", () => {
+      it("returns the documents with the given keys", done => {
+        collection
+          .lookupByKeys(["b", "c", "d"])
+          .then(arr => {
+            expect(arr).to.have.length(3);
+            arr.forEach(doc => {
+              expect(doc).to.have.keys("_key", "_id", "_rev", "value", "group");
+              expect(doc._id).to.equal(`${collection.name}/${doc._key}`);
+              expect(doc.group).to.equal(Math.floor((doc.value - 1) / 2) + 1);
+            });
+            expect(arr.map(d => d._key)).to.eql(["b", "c", "d"]);
+            done();
           })
-          .catch(done)
-      })
-    })
+          .catch(done);
+      });
+    });
   }
-  describe('collection.removeByKeys', () => {
-    it('is missing tests')
-  })
-})
+  describe("collection.removeByKeys", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/13-bulk-imports.js b/test/13-bulk-imports.js
index c83220062..706ed8cd9 100644
--- a/test/13-bulk-imports.js
+++ b/test/13-bulk-imports.js
@@ -1,7 +1,7 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('Bulk imports', () => {
-  describe('collection.import', () => {
-    it('is missing tests')
-  })
-})
+describe("Bulk imports", () => {
+  describe("collection.import", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/14-document-collections.js b/test/14-document-collections.js
index b58785fe3..4873abe59 100644
--- a/test/14-document-collections.js
+++ b/test/14-document-collections.js
@@ -1,196 +1,260 @@
-import {describe, it, before, after, beforeEach, afterEach} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
+import { after, afterEach, before, beforeEach, describe, it } from "mocha";
 
-const ARANGO_VERSION = Number(process.env.ARANGO_VERSION || 30000)
-const it3x = ARANGO_VERSION >= 30000 ? it : it.skip
+import { Database } from "../src";
+import { expect } from "chai";
 
-describe('DocumentCollection API', () => {
-  let name = `testdb_${Date.now()}`
-  let db
-  let collection
-  before((done) => {
+const ARANGO_VERSION = Number(process.env.ARANGO_VERSION || 30000);
+const it3x = ARANGO_VERSION >= 30000 ? it : it.skip;
+
+describe("DocumentCollection API", () => {
+  let name = `testdb_${Date.now()}`;
+  let db;
+  let collection;
+  before(done => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: ARANGO_VERSION
-    })
-    db.createDatabase(name)
+    });
+    db
+      .createDatabase(name)
       .then(() => {
-        db.useDatabase(name)
-        done()
+        db.useDatabase(name);
+        done();
       })
-      .catch(done)
-  })
-  after((done) => {
-    db.useDatabase('_system')
-    db.dropDatabase(name)
+      .catch(done);
+  });
+  after(done => {
+    db.useDatabase("_system");
+    db
+      .dropDatabase(name)
       .then(() => void done())
-      .catch(done)
-  })
-  beforeEach((done) => {
-    collection = db.collection(`c_${Date.now()}`)
-    collection.create()
+      .catch(done);
+  });
+  beforeEach(done => {
+    collection = db.collection(`c_${Date.now()}`);
+    collection
+      .create()
       .then(() => void done())
-      .catch(done)
-  })
-  afterEach((done) => {
-    collection.drop()
+      .catch(done);
+  });
+  afterEach(done => {
+    collection
+      .drop()
       .then(() => void done())
-      .catch(done)
-  })
-  describe('documentCollection.document', () => {
-    it('is missing tests')
-  })
-  describe('documentCollection.save', () => {
-    it('creates a document in the collection', (done) => {
-      let data = {foo: 'bar'}
-      collection.save(data)
-        .then((meta) => {
-          expect(meta).to.be.an('object')
-          expect(meta).to.have.a.property('_id').that.is.a('string')
-          expect(meta).to.have.a.property('_rev').that.is.a('string')
-          expect(meta).to.have.a.property('_key').that.is.a('string')
-          return collection.document(meta._id)
-            .then((doc) => {
-              expect(doc).to.have.keys('_key', '_id', '_rev', 'foo')
-              expect(doc._id).to.equal(meta._id)
-              expect(doc._key).to.equal(meta._key)
-              expect(doc._rev).to.equal(meta._rev)
-              expect(doc.foo).to.equal(data.foo)
-            })
+      .catch(done);
+  });
+  describe("documentCollection.document", () => {
+    it("is missing tests");
+  });
+  describe("documentCollection.save", () => {
+    it("creates a document in the collection", done => {
+      let data = { foo: "bar" };
+      collection
+        .save(data)
+        .then(meta => {
+          expect(meta).to.be.an("object");
+          expect(meta)
+            .to.have.a.property("_id")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_rev")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_key")
+            .that.is.a("string");
+          return collection.document(meta._id).then(doc => {
+            expect(doc).to.have.keys("_key", "_id", "_rev", "foo");
+            expect(doc._id).to.equal(meta._id);
+            expect(doc._key).to.equal(meta._key);
+            expect(doc._rev).to.equal(meta._rev);
+            expect(doc.foo).to.equal(data.foo);
+          });
         })
         .then(() => void done())
-        .catch(done)
-    })
-    it('uses the given _key if provided', (done) => {
-      let data = {potato: 'tomato', _key: 'banana'}
-      collection.save(data)
-        .then((meta) => {
-          expect(meta).to.be.an('object')
-          expect(meta).to.have.a.property('_id').that.is.a('string')
-          expect(meta).to.have.a.property('_rev').that.is.a('string')
-          expect(meta).to.have.a.property('_key').that.equals(data._key)
-          return collection.document(meta._id)
-            .then((doc) => {
-              expect(doc).to.have.keys('_key', '_id', '_rev', 'potato')
-              expect(doc._id).to.equal(meta._id)
-              expect(doc._rev).to.equal(meta._rev)
-              expect(doc._key).to.equal(data._key)
-              expect(doc.potato).to.equal(data.potato)
-            })
+        .catch(done);
+    });
+    it("uses the given _key if provided", done => {
+      let data = { potato: "tomato", _key: "banana" };
+      collection
+        .save(data)
+        .then(meta => {
+          expect(meta).to.be.an("object");
+          expect(meta)
+            .to.have.a.property("_id")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_rev")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_key")
+            .that.equals(data._key);
+          return collection.document(meta._id).then(doc => {
+            expect(doc).to.have.keys("_key", "_id", "_rev", "potato");
+            expect(doc._id).to.equal(meta._id);
+            expect(doc._rev).to.equal(meta._rev);
+            expect(doc._key).to.equal(data._key);
+            expect(doc.potato).to.equal(data.potato);
+          });
         })
         .then(() => void done())
-        .catch(done)
-    })
-    it3x('returns the document if opts.returnNew is set', (done) => {
-      let data = {potato: 'tomato'}
-      let opts = {returnNew: true}
-      collection.save(data, opts)
-        .then((meta) => {
-          expect(meta).to.be.an('object')
-          expect(meta).to.have.a.property('_id').that.is.a('string')
-          expect(meta).to.have.a.property('_rev').that.is.a('string')
-          expect(meta).to.have.a.property('_key').that.is.a('string')
-          expect(meta.new).to.be.an('object')
-          expect(meta.new).to.have.a.property('_id').that.is.a('string')
-          expect(meta.new).to.have.a.property('_rev').that.is.a('string')
-          expect(meta.new).to.have.a.property('_key').that.is.a('string')
-          expect(meta.new.potato).to.equal(data.potato)
+        .catch(done);
+    });
+    it3x("returns the document if opts.returnNew is set", done => {
+      let data = { potato: "tomato" };
+      let opts = { returnNew: true };
+      collection
+        .save(data, opts)
+        .then(meta => {
+          expect(meta).to.be.an("object");
+          expect(meta)
+            .to.have.a.property("_id")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_rev")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_key")
+            .that.is.a("string");
+          expect(meta.new).to.be.an("object");
+          expect(meta.new)
+            .to.have.a.property("_id")
+            .that.is.a("string");
+          expect(meta.new)
+            .to.have.a.property("_rev")
+            .that.is.a("string");
+          expect(meta.new)
+            .to.have.a.property("_key")
+            .that.is.a("string");
+          expect(meta.new.potato).to.equal(data.potato);
         })
         .then(() => void done())
-        .catch(done)
-    })
-    it3x('interprets opts as returnNew if it is a boolean', (done) => {
-      let data = {potato: 'tomato'}
-      let opts = true
-      collection.save(data, opts)
-        .then((meta) => {
-          expect(meta).to.be.an('object')
-          expect(meta).to.have.a.property('_id').that.is.a('string')
-          expect(meta).to.have.a.property('_rev').that.is.a('string')
-          expect(meta).to.have.a.property('_key').that.is.a('string')
-          expect(meta.new).to.be.an('object')
-          expect(meta.new).to.have.a.property('_id').that.is.a('string')
-          expect(meta.new).to.have.a.property('_rev').that.is.a('string')
-          expect(meta.new).to.have.a.property('_key').that.is.a('string')
-          expect(meta.new.potato).to.equal(data.potato)
+        .catch(done);
+    });
+    it3x("interprets opts as returnNew if it is a boolean", done => {
+      let data = { potato: "tomato" };
+      let opts = true;
+      collection
+        .save(data, opts)
+        .then(meta => {
+          expect(meta).to.be.an("object");
+          expect(meta)
+            .to.have.a.property("_id")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_rev")
+            .that.is.a("string");
+          expect(meta)
+            .to.have.a.property("_key")
+            .that.is.a("string");
+          expect(meta.new).to.be.an("object");
+          expect(meta.new)
+            .to.have.a.property("_id")
+            .that.is.a("string");
+          expect(meta.new)
+            .to.have.a.property("_rev")
+            .that.is.a("string");
+          expect(meta.new)
+            .to.have.a.property("_key")
+            .that.is.a("string");
+          expect(meta.new.potato).to.equal(data.potato);
         })
         .then(() => void done())
-        .catch(done)
-    })
-  })
-  describe('documentCollection.replace', () => {
-    it('replaces the given document', (done) => {
-      let doc = {potato: 'tomato'}
-      collection.save(doc)
-        .then((meta) => {
-          delete meta.error
-          Object.assign(doc, meta)
-          return collection.replace(doc, {sup: 'dawg'})
+        .catch(done);
+    });
+  });
+  describe("documentCollection.replace", () => {
+    it("replaces the given document", done => {
+      let doc = { potato: "tomato" };
+      collection
+        .save(doc)
+        .then(meta => {
+          delete meta.error;
+          Object.assign(doc, meta);
+          return collection.replace(doc, { sup: "dawg" });
         })
         .then(() => collection.document(doc._key))
-        .then((data) => {
-          expect(data).not.to.have.a.property('potato')
-          expect(data).to.have.a.property('sup').that.equals('dawg')
-          done()
+        .then(data => {
+          expect(data).not.to.have.a.property("potato");
+          expect(data)
+            .to.have.a.property("sup")
+            .that.equals("dawg");
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('documentCollection.update', () => {
-    it('updates the given document', (done) => {
-      let doc = {potato: 'tomato', empty: false}
-      collection.save(doc)
-        .then((meta) => {
-          delete meta.error
-          Object.assign(doc, meta)
-          return collection.update(doc, {sup: 'dawg', empty: null})
+        .catch(done);
+    });
+  });
+  describe("documentCollection.update", () => {
+    it("updates the given document", done => {
+      let doc = { potato: "tomato", empty: false };
+      collection
+        .save(doc)
+        .then(meta => {
+          delete meta.error;
+          Object.assign(doc, meta);
+          return collection.update(doc, { sup: "dawg", empty: null });
         })
         .then(() => collection.document(doc._key))
-        .then((data) => {
-          expect(data).to.have.a.property('potato').that.equals(doc.potato)
-          expect(data).to.have.a.property('sup').that.equals('dawg')
-          expect(data).to.have.a.property('empty').that.equals(null)
-          done()
+        .then(data => {
+          expect(data)
+            .to.have.a.property("potato")
+            .that.equals(doc.potato);
+          expect(data)
+            .to.have.a.property("sup")
+            .that.equals("dawg");
+          expect(data)
+            .to.have.a.property("empty")
+            .that.equals(null);
+          done();
         })
-        .catch(done)
-    })
-    it('removes null values if keepNull is explicitly set to false', (done) => {
-      let doc = {potato: 'tomato', empty: false}
-      collection.save(doc)
-        .then((meta) => {
-          delete meta.error
-          Object.assign(doc, meta)
-          return collection.update(doc, {sup: 'dawg', empty: null}, {keepNull: false})
+        .catch(done);
+    });
+    it("removes null values if keepNull is explicitly set to false", done => {
+      let doc = { potato: "tomato", empty: false };
+      collection
+        .save(doc)
+        .then(meta => {
+          delete meta.error;
+          Object.assign(doc, meta);
+          return collection.update(
+            doc,
+            { sup: "dawg", empty: null },
+            { keepNull: false }
+          );
         })
         .then(() => collection.document(doc._key))
-        .then((data) => {
-          expect(data).to.have.a.property('potato').that.equals(doc.potato)
-          expect(data).to.have.a.property('sup').that.equals('dawg')
-          expect(data).not.to.have.a.property('empty')
-          done()
+        .then(data => {
+          expect(data)
+            .to.have.a.property("potato")
+            .that.equals(doc.potato);
+          expect(data)
+            .to.have.a.property("sup")
+            .that.equals("dawg");
+          expect(data).not.to.have.a.property("empty");
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('documentCollection.remove', () => {
-    let key = `d_${Date.now()}`
-    beforeEach((done) => {
-      collection.save({_key: key})
+        .catch(done);
+    });
+  });
+  describe("documentCollection.remove", () => {
+    let key = `d_${Date.now()}`;
+    beforeEach(done => {
+      collection
+        .save({ _key: key })
         .then(() => void done())
-        .catch(done)
-    })
-    it('deletes the given document', (done) => {
-      collection.remove(key)
+        .catch(done);
+    });
+    it("deletes the given document", done => {
+      collection
+        .remove(key)
         .then(() => collection.document(key))
         .then(
-          () => Promise.reject(new Error('Should not succeed')),
+          () => Promise.reject(new Error("Should not succeed")),
           () => void done()
-      )
-        .catch(done)
-    })
-  })
-  describe('documentCollection.list', () => {
-    it('is missing tests')
-  })
-})
+        )
+        .catch(done);
+    });
+  });
+  describe("documentCollection.list", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/15-edge-collections.js b/test/15-edge-collections.js
index 0e1415d1d..a8c3eb74d 100644
--- a/test/15-edge-collections.js
+++ b/test/15-edge-collections.js
@@ -1,34 +1,34 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('EdgeCollection API', () => {
-  describe('edgeCollection.edge', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.save', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.edges', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.inEdges', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.outEdges', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.traversal', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.replace', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.update', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.remove', () => {
-    it('is missing tests')
-  })
-  describe('edgeCollection.list', () => {
-    it('is missing tests')
-  })
-})
+describe("EdgeCollection API", () => {
+  describe("edgeCollection.edge", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.save", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.edges", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.inEdges", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.outEdges", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.traversal", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.replace", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.update", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.remove", () => {
+    it("is missing tests");
+  });
+  describe("edgeCollection.list", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/16-graphs.js b/test/16-graphs.js
index f865017f1..1d499de50 100644
--- a/test/16-graphs.js
+++ b/test/16-graphs.js
@@ -1,176 +1,189 @@
-import {describe, it, before, after, beforeEach, afterEach} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
+import { after, afterEach, before, beforeEach, describe, it } from "mocha";
 
-const range = (n) => Array.from(Array(n).keys())
+import { Database } from "../src";
+import { expect } from "chai";
 
-function createCollections (db) {
-  let vertexCollectionNames = range(2).map((i) => `vc_${Date.now()}_${i}`)
-  let edgeCollectionNames = range(2).map((i) => `ec_${Date.now()}_${i}`)
+const range = n => Array.from(Array(n).keys());
+
+function createCollections(db) {
+  let vertexCollectionNames = range(2).map(i => `vc_${Date.now()}_${i}`);
+  let edgeCollectionNames = range(2).map(i => `ec_${Date.now()}_${i}`);
   return Promise.all([
-    ...vertexCollectionNames.map((name) => db.collection(name).create()),
-    ...edgeCollectionNames.map((name) => db.edgeCollection(name).create())
-  ])
-    .then(() => [
-      vertexCollectionNames,
-      edgeCollectionNames
-    ])
+    ...vertexCollectionNames.map(name => db.collection(name).create()),
+    ...edgeCollectionNames.map(name => db.edgeCollection(name).create())
+  ]).then(() => [vertexCollectionNames, edgeCollectionNames]);
 }
 
-function createGraph (graph, vertexCollectionNames, edgeCollectionNames) {
+function createGraph(graph, vertexCollectionNames, edgeCollectionNames) {
   return graph.create({
-    edgeDefinitions: edgeCollectionNames.map((name) => ({
+    edgeDefinitions: edgeCollectionNames.map(name => ({
       collection: name,
       from: vertexCollectionNames,
       to: vertexCollectionNames
     }))
-  })
+  });
 }
 
-describe('Graph API', () => {
-  let db
-  let name = `testdb_${Date.now()}`
-  before((done) => {
+describe("Graph API", () => {
+  let db;
+  let name = `testdb_${Date.now()}`;
+  before(done => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-    })
-    db.createDatabase(name)
+    });
+    db
+      .createDatabase(name)
       .then(() => {
-        db.useDatabase(name)
-        done()
+        db.useDatabase(name);
+        done();
       })
-      .catch(done)
-  })
-  after((done) => {
-    db.useDatabase('_system')
-    db.dropDatabase(name)
+      .catch(done);
+  });
+  after(done => {
+    db.useDatabase("_system");
+    db
+      .dropDatabase(name)
       .then(() => void done())
-      .catch(done)
-  })
-  describe('graph.get', () => {
-    let graph
-    let collectionNames
-    before((done) => {
-      graph = db.graph(`g_${Date.now()}`)
+      .catch(done);
+  });
+  describe("graph.get", () => {
+    let graph;
+    let collectionNames;
+    before(done => {
+      graph = db.graph(`g_${Date.now()}`);
       createCollections(db)
-        .then((names) => {
-          collectionNames = names.reduce((a, b) => a.concat(b))
-          return createGraph(graph, ...names)
+        .then(names => {
+          collectionNames = names.reduce((a, b) => a.concat(b));
+          return createGraph(graph, ...names);
         })
         .then(() => void done())
-        .catch(done)
-    })
-    after((done) => {
-      graph.drop()
-        .then(() => Promise.all(
-          collectionNames.map((name) => db.collection(name).drop())
-        ))
+        .catch(done);
+    });
+    after(done => {
+      graph
+        .drop()
+        .then(() =>
+          Promise.all(collectionNames.map(name => db.collection(name).drop()))
+        )
         .then(() => void done())
-        .catch(done)
-    })
-    it('fetches information about the graph', (done) => {
-      graph.get()
-        .then((data) => {
-          expect(data).to.have.a.property('name', graph.name)
-          done()
+        .catch(done);
+    });
+    it("fetches information about the graph", done => {
+      graph
+        .get()
+        .then(data => {
+          expect(data).to.have.a.property("name", graph.name);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('graph.create', () => {
-    let edgeCollectionNames
-    let vertexCollectionNames
-    before((done) => {
+        .catch(done);
+    });
+  });
+  describe("graph.create", () => {
+    let edgeCollectionNames;
+    let vertexCollectionNames;
+    before(done => {
       createCollections(db)
-        .then((names) => {
-          [vertexCollectionNames, edgeCollectionNames] = names
-          done()
+        .then(names => {
+          [vertexCollectionNames, edgeCollectionNames] = names;
+          done();
         })
-        .catch(done)
-    })
-    after((done) => {
+        .catch(done);
+    });
+    after(done => {
       Promise.all(
-        [...edgeCollectionNames, ...vertexCollectionNames]
-          .map((name) => db.collection(name).drop())
+        [...edgeCollectionNames, ...vertexCollectionNames].map(name =>
+          db.collection(name).drop()
+        )
       )
         .then(() => void done())
-        .catch(done)
-    })
-    it('creates the graph', (done) => {
-      let graph = db.graph(`g_${Date.now()}`)
-      graph.create({
-        edgeDefinitions: edgeCollectionNames.map((name) => ({
-          collection: name,
-          from: vertexCollectionNames,
-          to: vertexCollectionNames
-        }))
-      })
+        .catch(done);
+    });
+    it("creates the graph", done => {
+      let graph = db.graph(`g_${Date.now()}`);
+      graph
+        .create({
+          edgeDefinitions: edgeCollectionNames.map(name => ({
+            collection: name,
+            from: vertexCollectionNames,
+            to: vertexCollectionNames
+          }))
+        })
         .then(() => graph.get())
-        .then((data) => {
-          expect(data).to.have.a.property('name', graph.name)
-          done()
+        .then(data => {
+          expect(data).to.have.a.property("name", graph.name);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('graph.drop', () => {
-    let graph
-    let edgeCollectionNames
-    let vertexCollectionNames
-    beforeEach((done) => {
-      graph = db.graph(`g_${Date.now()}`)
+        .catch(done);
+    });
+  });
+  describe("graph.drop", () => {
+    let graph;
+    let edgeCollectionNames;
+    let vertexCollectionNames;
+    beforeEach(done => {
+      graph = db.graph(`g_${Date.now()}`);
       createCollections(db)
-        .then((names) => {
-          [vertexCollectionNames, edgeCollectionNames] = names
-          return createGraph(graph, ...names)
+        .then(names => {
+          [vertexCollectionNames, edgeCollectionNames] = names;
+          return createGraph(graph, ...names);
         })
         .then(() => void done())
-        .catch(done)
-    })
-    afterEach((done) => {
+        .catch(done);
+    });
+    afterEach(done => {
       Promise.all(
-        [...edgeCollectionNames, ...vertexCollectionNames]
-          .map((name) => db.collection(name).drop().catch(() => null))
+        [...edgeCollectionNames, ...vertexCollectionNames].map(name =>
+          db
+            .collection(name)
+            .drop()
+            .catch(() => null)
+        )
       )
         .then(() => void done())
-        .catch(done)
-    })
-    it('destroys the graph if not passed true', (done) => {
-      graph.drop()
-        .then(() => graph.get()
-          .then(
-            () => Promise.reject(new Error('Should not succeed')),
-            () => undefined
+        .catch(done);
+    });
+    it("destroys the graph if not passed true", done => {
+      graph
+        .drop()
+        .then(() =>
+          graph
+            .get()
+            .then(
+              () => Promise.reject(new Error("Should not succeed")),
+              () => undefined
+            )
         )
-      )
         .then(() => db.listCollections())
-        .then((collections) => {
-          expect(collections.map((c) => c.name)).to.include.members([
+        .then(collections => {
+          expect(collections.map(c => c.name)).to.include.members([
             ...edgeCollectionNames,
             ...vertexCollectionNames
-          ])
-          done()
+          ]);
+          done();
         })
-        .catch(done)
-    })
-    it('additionally drops all of its collections if passed true', (done) => {
-      graph.drop(true)
-        .then(() => graph.get()
-          .then(
-            () => Promise.reject(new Error('Should not succeed')),
-            () => undefined
+        .catch(done);
+    });
+    it("additionally drops all of its collections if passed true", done => {
+      graph
+        .drop(true)
+        .then(() =>
+          graph
+            .get()
+            .then(
+              () => Promise.reject(new Error("Should not succeed")),
+              () => undefined
+            )
         )
-      )
         .then(() => db.listCollections())
-        .then((collections) => {
-          expect(collections.map((c) => c.name)).not.to.include.members([
+        .then(collections => {
+          expect(collections.map(c => c.name)).not.to.include.members([
             ...edgeCollectionNames,
             ...vertexCollectionNames
-          ])
-          done()
+          ]);
+          done();
         })
-        .catch(done)
-    })
-  })
-})
+        .catch(done);
+    });
+  });
+});
diff --git a/test/17-graph-vertices.js b/test/17-graph-vertices.js
index 380f41ce7..65a05db39 100644
--- a/test/17-graph-vertices.js
+++ b/test/17-graph-vertices.js
@@ -1,137 +1,145 @@
-import {describe, it, before, after, beforeEach, afterEach} from 'mocha'
-import {expect} from 'chai'
-import {Database} from '../src'
-import {VertexCollection} from '../src/graph'
-import ArangoError from '../src/error'
+import { after, afterEach, before, beforeEach, describe, it } from "mocha";
 
-const range = (n) => Array.from(Array(n).keys())
+import ArangoError from "../src/error";
+import { Database } from "../src";
+import { VertexCollection } from "../src/graph";
+import { expect } from "chai";
 
-function createCollections (db) {
-  let vertexCollectionNames = range(2).map((i) => `vc_${Date.now()}_${i}`)
-  let edgeCollectionNames = range(2).map((i) => `ec_${Date.now()}_${i}`)
+const range = n => Array.from(Array(n).keys());
+
+function createCollections(db) {
+  let vertexCollectionNames = range(2).map(i => `vc_${Date.now()}_${i}`);
+  let edgeCollectionNames = range(2).map(i => `ec_${Date.now()}_${i}`);
   return Promise.all([
-    ...vertexCollectionNames.map((name) => db.collection(name).create()),
-    ...edgeCollectionNames.map((name) => db.edgeCollection(name).create())
-  ])
-    .then(() => [
-      vertexCollectionNames,
-      edgeCollectionNames
-    ])
+    ...vertexCollectionNames.map(name => db.collection(name).create()),
+    ...edgeCollectionNames.map(name => db.edgeCollection(name).create())
+  ]).then(() => [vertexCollectionNames, edgeCollectionNames]);
 }
 
-function createGraph (graph, vertexCollectionNames, edgeCollectionNames) {
+function createGraph(graph, vertexCollectionNames, edgeCollectionNames) {
   return graph.create({
-    edgeDefinitions: edgeCollectionNames.map((name) => ({
+    edgeDefinitions: edgeCollectionNames.map(name => ({
       collection: name,
       from: vertexCollectionNames,
       to: vertexCollectionNames
     }))
-  })
+  });
 }
 
-describe('Manipulating graph vertices', () => {
-  let db
-  let name = `testdb_${Date.now()}`
-  let graph
-  let collectionNames
-  before((done) => {
+describe("Manipulating graph vertices", () => {
+  let db;
+  let name = `testdb_${Date.now()}`;
+  let graph;
+  let collectionNames;
+  before(done => {
     db = new Database({
-      url: (process.env.TEST_ARANGODB_URL || 'http://root:@localhost:8529'),
+      url: process.env.TEST_ARANGODB_URL || "http://root:@localhost:8529",
       arangoVersion: Number(process.env.ARANGO_VERSION || 30000)
-    })
-    db.createDatabase(name)
+    });
+    db
+      .createDatabase(name)
       .then(() => {
-        db.useDatabase(name)
-        done()
+        db.useDatabase(name);
+        done();
       })
-      .catch(done)
-  })
-  after((done) => {
-    db.useDatabase('_system')
-    db.dropDatabase(name)
+      .catch(done);
+  });
+  after(done => {
+    db.useDatabase("_system");
+    db
+      .dropDatabase(name)
       .then(() => void done())
-      .catch(done)
-  })
-  beforeEach((done) => {
-    graph = db.graph(`g_${Date.now()}`)
+      .catch(done);
+  });
+  beforeEach(done => {
+    graph = db.graph(`g_${Date.now()}`);
     createCollections(db)
-      .then((names) => {
-        collectionNames = names.reduce((a, b) => a.concat(b))
-        return createGraph(graph, ...names)
+      .then(names => {
+        collectionNames = names.reduce((a, b) => a.concat(b));
+        return createGraph(graph, ...names);
       })
       .then(() => void done())
-      .catch(done)
-  })
-  afterEach((done) => {
-    graph.drop()
-      .then(() => Promise.all(
-        collectionNames.map((name) => db.collection(name).drop())
-      ))
+      .catch(done);
+  });
+  afterEach(done => {
+    graph
+      .drop()
+      .then(() =>
+        Promise.all(collectionNames.map(name => db.collection(name).drop()))
+      )
       .then(() => void done())
-      .catch(done)
-  })
-  describe('graph.vertexCollection', () => {
-    it('returns a VertexCollection instance for the collection', () => {
-      let name = 'potato'
-      let collection = graph.vertexCollection(name)
-      expect(collection).to.be.an.instanceof(VertexCollection)
-      expect(collection).to.have.a.property('name').that.equals(name)
-    })
-  })
-  describe('graph.addVertexCollection', () => {
-    let vertexCollection
-    beforeEach((done) => {
-      vertexCollection = db.collection(`xc_${Date.now()}`)
-      vertexCollection.create()
+      .catch(done);
+  });
+  describe("graph.vertexCollection", () => {
+    it("returns a VertexCollection instance for the collection", () => {
+      let name = "potato";
+      let collection = graph.vertexCollection(name);
+      expect(collection).to.be.an.instanceof(VertexCollection);
+      expect(collection)
+        .to.have.a.property("name")
+        .that.equals(name);
+    });
+  });
+  describe("graph.addVertexCollection", () => {
+    let vertexCollection;
+    beforeEach(done => {
+      vertexCollection = db.collection(`xc_${Date.now()}`);
+      vertexCollection
+        .create()
         .then(() => void done())
-        .catch(done)
-    })
-    afterEach((done) => {
-      vertexCollection.drop()
+        .catch(done);
+    });
+    afterEach(done => {
+      vertexCollection
+        .drop()
         .then(() => void done())
-        .catch(done)
-    })
-    it('adds the given vertex collection to the graph', (done) => {
-      graph.addVertexCollection(vertexCollection.name)
-        .then((data) => {
-          expect(data.orphanCollections).to.contain(vertexCollection.name)
-          done()
+        .catch(done);
+    });
+    it("adds the given vertex collection to the graph", done => {
+      graph
+        .addVertexCollection(vertexCollection.name)
+        .then(data => {
+          expect(data.orphanCollections).to.contain(vertexCollection.name);
+          done();
         })
-        .catch(done)
-    })
-  })
-  describe('graph.removeVertexCollection', () => {
-    let vertexCollection
-    beforeEach((done) => {
-      vertexCollection = db.collection(`xc_${Date.now()}`)
-      vertexCollection.create()
+        .catch(done);
+    });
+  });
+  describe("graph.removeVertexCollection", () => {
+    let vertexCollection;
+    beforeEach(done => {
+      vertexCollection = db.collection(`xc_${Date.now()}`);
+      vertexCollection
+        .create()
         .then(() => graph.addVertexCollection(vertexCollection.name))
         .then(() => void done())
-        .catch(done)
-    })
-    it('removes the given vertex collection from the graph', (done) => {
-      graph.removeVertexCollection(vertexCollection.name)
-        .then((data) => {
-          expect(data.orphanCollections).not.to.contain(vertexCollection.name)
-          return vertexCollection.get()
+        .catch(done);
+    });
+    it("removes the given vertex collection from the graph", done => {
+      graph
+        .removeVertexCollection(vertexCollection.name)
+        .then(data => {
+          expect(data.orphanCollections).not.to.contain(vertexCollection.name);
+          return vertexCollection.get();
         })
         .then(() => done())
-        .catch(done)
-    })
-    it('destroys the collection if explicitly passed true', (done) => {
-      graph.removeVertexCollection(vertexCollection.name, true)
-        .then((data) => {
-          expect(data.orphanCollections).not.to.contain(vertexCollection.name)
-          return vertexCollection.get()
+        .catch(done);
+    });
+    it("destroys the collection if explicitly passed true", done => {
+      graph
+        .removeVertexCollection(vertexCollection.name, true)
+        .then(data => {
+          expect(data.orphanCollections).not.to.contain(vertexCollection.name);
+          return vertexCollection.get();
         })
         .then(
-          () => Promise.reject(new Error('Should not succeed')),
-          (err) => {
-            expect(err).to.be.an.instanceof(ArangoError)
-            done()
+          () => Promise.reject(new Error("Should not succeed")),
+          err => {
+            expect(err).to.be.an.instanceof(ArangoError);
+            done();
           }
-      )
-        .catch(done)
-    })
-  })
-})
+        )
+        .catch(done);
+    });
+  });
+});
diff --git a/test/18-graph-edges.js b/test/18-graph-edges.js
index 013ebdb41..3a864664f 100644
--- a/test/18-graph-edges.js
+++ b/test/18-graph-edges.js
@@ -1,19 +1,19 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('Manipulating graph edges', () => {
-  describe('graph.edgeCollection', () => {
-    it('is missing tests')
-  })
-  describe('graph.addEdgeDefinition', () => {
-    it('is missing tests')
-  })
-  describe('graph.replaceEdgeDefinition', () => {
-    it('is missing tests')
-  })
-  describe('graph.removeEdgeDefinition', () => {
-    it('is missing tests')
-  })
-  describe('graph.traversal', () => {
-    it('is missing tests')
-  })
-})
+describe("Manipulating graph edges", () => {
+  describe("graph.edgeCollection", () => {
+    it("is missing tests");
+  });
+  describe("graph.addEdgeDefinition", () => {
+    it("is missing tests");
+  });
+  describe("graph.replaceEdgeDefinition", () => {
+    it("is missing tests");
+  });
+  describe("graph.removeEdgeDefinition", () => {
+    it("is missing tests");
+  });
+  describe("graph.traversal", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/19-graph-vertex-collections.js b/test/19-graph-vertex-collections.js
index c42feea48..027150641 100644
--- a/test/19-graph-vertex-collections.js
+++ b/test/19-graph-vertex-collections.js
@@ -1,13 +1,13 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('GraphVertexCollection API', () => {
-  describe('graphVertexCollection.remove', () => {
-    it('is missing tests')
-  })
-  describe('graphVertexCollection.vertex', () => {
-    it('is missing tests')
-  })
-  describe('graphVertexCollection.save', () => {
-    it('is missing tests')
-  })
-})
+describe("GraphVertexCollection API", () => {
+  describe("graphVertexCollection.remove", () => {
+    it("is missing tests");
+  });
+  describe("graphVertexCollection.vertex", () => {
+    it("is missing tests");
+  });
+  describe("graphVertexCollection.save", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/20-graph-edge-collections.js b/test/20-graph-edge-collections.js
index 820700d05..8d2bf345b 100644
--- a/test/20-graph-edge-collections.js
+++ b/test/20-graph-edge-collections.js
@@ -1,37 +1,37 @@
-import {describe, it} from 'mocha'
+import { describe, it } from "mocha";
 
-describe('GraphEdgeCollection API', () => {
-  describe('graphEdgeCollection.remove', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.edge', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.save', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.edges', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.inEdges', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.outEdges', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.traversal', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.replace', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.update', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.remove', () => {
-    it('is missing tests')
-  })
-  describe('graphEdgeCollection.list', () => {
-    it('is missing tests')
-  })
-})
+describe("GraphEdgeCollection API", () => {
+  describe("graphEdgeCollection.remove", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.edge", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.save", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.edges", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.inEdges", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.outEdges", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.traversal", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.replace", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.update", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.remove", () => {
+    it("is missing tests");
+  });
+  describe("graphEdgeCollection.list", () => {
+    it("is missing tests");
+  });
+});
diff --git a/test/21-util-joinpath.js b/test/21-util-joinpath.js
index 24d14dff3..fa7158642 100644
--- a/test/21-util-joinpath.js
+++ b/test/21-util-joinpath.js
@@ -1,21 +1,24 @@
-import {describe, it} from 'mocha'
-import {expect} from 'chai'
-import joinPath from '../src/util/joinPath'
+import { describe, it } from "mocha";
 
-describe('Join Path', () => {
-  it('joinPath 1', () => {
-    var baseUrl = '../../u1/u2'
-    var path = '/security/authenticate'
-    expect(joinPath(baseUrl, path)).to.equal('../../u1/u2/security/authenticate')
-  })
-  it('joinPath 2', () => {
-    var baseUrl = '/u1/u2'
-    var path = '../security/authenticate'
-    expect(joinPath(baseUrl, path)).to.equal('/u1/security/authenticate')
-  })
-  it('joinPath 3', () => {
-    var baseUrl = '/u1/u2'
-    var path = '../../security/authenticate'
-    expect(joinPath(baseUrl, path)).to.equal('/security/authenticate')
-  })
-})
+import { expect } from "chai";
+import joinPath from "../src/util/joinPath";
+
+describe("Join Path", () => {
+  it("joinPath 1", () => {
+    var baseUrl = "../../u1/u2";
+    var path = "/security/authenticate";
+    expect(joinPath(baseUrl, path)).to.equal(
+      "../../u1/u2/security/authenticate"
+    );
+  });
+  it("joinPath 2", () => {
+    var baseUrl = "/u1/u2";
+    var path = "../security/authenticate";
+    expect(joinPath(baseUrl, path)).to.equal("/u1/security/authenticate");
+  });
+  it("joinPath 3", () => {
+    var baseUrl = "/u1/u2";
+    var path = "../../security/authenticate";
+    expect(joinPath(baseUrl, path)).to.equal("/security/authenticate");
+  });
+});
diff --git a/yarn.lock b/yarn.lock
index 70b53facf..d15cde982 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,59 @@
 # yarn lockfile v1
 
 
+"@babel/code-frame@7.0.0-beta.31":
+  version "7.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-beta.31.tgz#473d021ecc573a2cce1c07d5b509d5215f46ba35"
+  dependencies:
+    chalk "^2.0.0"
+    esutils "^2.0.2"
+    js-tokens "^3.0.0"
+
+"@babel/helper-function-name@7.0.0-beta.31":
+  version "7.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.31.tgz#afe63ad799209989348b1109b44feb66aa245f57"
+  dependencies:
+    "@babel/helper-get-function-arity" "7.0.0-beta.31"
+    "@babel/template" "7.0.0-beta.31"
+    "@babel/traverse" "7.0.0-beta.31"
+    "@babel/types" "7.0.0-beta.31"
+
+"@babel/helper-get-function-arity@7.0.0-beta.31":
+  version "7.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.31.tgz#1176d79252741218e0aec872ada07efb2b37a493"
+  dependencies:
+    "@babel/types" "7.0.0-beta.31"
+
+"@babel/template@7.0.0-beta.31":
+  version "7.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.0.0-beta.31.tgz#577bb29389f6c497c3e7d014617e7d6713f68bda"
+  dependencies:
+    "@babel/code-frame" "7.0.0-beta.31"
+    "@babel/types" "7.0.0-beta.31"
+    babylon "7.0.0-beta.31"
+    lodash "^4.2.0"
+
+"@babel/traverse@7.0.0-beta.31":
+  version "7.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.0.0-beta.31.tgz#db399499ad74aefda014f0c10321ab255134b1df"
+  dependencies:
+    "@babel/code-frame" "7.0.0-beta.31"
+    "@babel/helper-function-name" "7.0.0-beta.31"
+    "@babel/types" "7.0.0-beta.31"
+    babylon "7.0.0-beta.31"
+    debug "^3.0.1"
+    globals "^10.0.0"
+    invariant "^2.2.0"
+    lodash "^4.2.0"
+
+"@babel/types@7.0.0-beta.31":
+  version "7.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.0.0-beta.31.tgz#42c9c86784f674c173fb21882ca9643334029de4"
+  dependencies:
+    esutils "^2.0.2"
+    lodash "^4.2.0"
+    to-fast-properties "^2.0.0"
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
@@ -12,7 +65,7 @@ acorn-dynamic-import@^2.0.0:
   dependencies:
     acorn "^4.0.3"
 
-acorn-jsx@^3.0.0, acorn-jsx@^3.0.1:
+acorn-jsx@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
   dependencies:
@@ -26,29 +79,14 @@ acorn@^4.0.3:
   version "4.0.13"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
 
-acorn@^5.0.0:
+acorn@^5.0.0, acorn@^5.2.1:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.2.1.tgz#317ac7821826c22c702d66189ab8359675f135d7"
 
-acorn@^5.0.1:
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.0.3.tgz#c460df08491463f028ccb82eab3730bf01087b3d"
-
-ajv-keywords@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-1.1.1.tgz#02550bc605a3e576041565628af972e06c549d50"
-
-ajv-keywords@^2.0.0:
+ajv-keywords@^2.0.0, ajv-keywords@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
 
-ajv@^4.7.0:
-  version "4.9.0"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.9.0.tgz#5a358085747b134eb567d6d15e015f1d7802f45c"
-  dependencies:
-    co "^4.6.0"
-    json-stable-stringify "^1.0.1"
-
 ajv@^4.9.1:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
@@ -65,6 +103,15 @@ ajv@^5.1.5:
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
 
+ajv@^5.2.3, ajv@^5.3.0:
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.1.tgz#b38bb8876d9e86bee994956a04e721e88b248eb2"
+  dependencies:
+    co "^4.6.0"
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+
 align-text@^0.1.1, align-text@^0.1.3:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
@@ -73,18 +120,28 @@ align-text@^0.1.1, align-text@^0.1.3:
     longest "^1.0.1"
     repeat-string "^1.5.2"
 
-ansi-escapes@^1.1.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
+ansi-escapes@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.0.0.tgz#ec3e8b4e9f8064fc02c3ac9b65f1c275bda8ef92"
 
 ansi-regex@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
 
+ansi-regex@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
+
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
+ansi-styles@^3.1.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.0.tgz#c159b8d5be0f9e5a6f346dab94f16ce022161b88"
+  dependencies:
+    color-convert "^1.9.0"
+
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
@@ -137,13 +194,6 @@ array-unique@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.2.1.tgz#a1d97ccafcbc2625cc70fadceb36a50c58b01a53"
 
-array.prototype.find@^2.0.1:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/array.prototype.find/-/array.prototype.find-2.0.4.tgz#556a5c5362c08648323ddaeb9de9d14bc1864c90"
-  dependencies:
-    define-properties "^1.1.2"
-    es-abstract "^1.7.0"
-
 arrify@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
@@ -242,14 +292,6 @@ babel-cli@^6.24.1:
   optionalDependencies:
     chokidar "^1.6.1"
 
-babel-code-frame@^6.16.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.22.0.tgz#027620bee567a88c32561574e7fd0801d33118e4"
-  dependencies:
-    chalk "^1.1.0"
-    esutils "^2.0.2"
-    js-tokens "^3.0.0"
-
 babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
@@ -321,6 +363,15 @@ babel-env@^2.4.1:
     babel-preset-react "^6.23.0"
     babel-preset-stage-0 "^6.22.0"
 
+babel-eslint@^8.0.3:
+  version "8.0.3"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.0.3.tgz#f29ecf02336be438195325cd47c468da81ee4e98"
+  dependencies:
+    "@babel/code-frame" "7.0.0-beta.31"
+    "@babel/traverse" "7.0.0-beta.31"
+    "@babel/types" "7.0.0-beta.31"
+    babylon "7.0.0-beta.31"
+
 babel-generator@^6.25.0, babel-generator@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.0.tgz#ac1ae20070b79f6e3ca1d3269613053774f20dc5"
@@ -1032,6 +1083,10 @@ babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.25.0, babel-types@^6.26
     lodash "^4.17.4"
     to-fast-properties "^1.0.3"
 
+babylon@7.0.0-beta.31:
+  version "7.0.0-beta.31"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.31.tgz#7ec10f81e0e456fd0f855ad60fa30c2ac454283f"
+
 babylon@^6.17.2, babylon@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
@@ -1074,7 +1129,7 @@ boom@2.x.x:
   dependencies:
     hoek "2.x.x"
 
-brace-expansion@^1.0.0, brace-expansion@^1.1.7:
+brace-expansion@^1.1.7:
   version "1.1.8"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.8.tgz#c07b211c7c952ec1f8efd51a77ef0d1d3990a292"
   dependencies:
@@ -1172,7 +1227,7 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
-builtin-modules@^1.0.0, builtin-modules@^1.1.1:
+builtin-modules@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
 
@@ -1235,7 +1290,7 @@ chai@^4.0.2:
     pathval "^1.0.0"
     type-detect "^4.0.0"
 
-chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
+chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -1245,6 +1300,18 @@ chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
+chalk@^2.0.0, chalk@^2.1.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.0.tgz#b5ea48efc9c1793dccc9b4767c93914d3f2d52ba"
+  dependencies:
+    ansi-styles "^3.1.0"
+    escape-string-regexp "^1.0.5"
+    supports-color "^4.0.0"
+
+chardet@^0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
+
 check-error@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
@@ -1271,19 +1338,19 @@ cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-circular-json@^0.3.0:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.1.tgz#be8b36aefccde8b3ca7aa2d6afc07a37242c0d2d"
+circular-json@^0.3.1:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
 
-cli-cursor@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
+cli-cursor@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
   dependencies:
-    restore-cursor "^1.0.1"
+    restore-cursor "^2.0.0"
 
 cli-width@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.1.0.tgz#b234ca209b29ef66fc518d9b98d5847b00edf00a"
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
 
 cliui@^2.1.0:
   version "2.1.0"
@@ -1309,6 +1376,16 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
+color-convert@^1.9.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.1.tgz#c1261107aeb2f294ebffec9ed9ecad529a6097ed"
+  dependencies:
+    color-name "^1.1.1"
+
+color-name@^1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+
 combined-stream@^1.0.5, combined-stream@~1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.5.tgz#938370a57b4a51dea2c77c15d5c5fdf895164009"
@@ -1333,13 +1410,13 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-concat-stream@^1.5.0, concat-stream@^1.5.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.5.2.tgz#708978624d856af41a5a741defdd261da752c266"
+concat-stream@^1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
   dependencies:
-    inherits "~2.0.1"
-    readable-stream "~2.0.0"
-    typedarray "~0.0.5"
+    inherits "^2.0.3"
+    readable-stream "^2.2.2"
+    typedarray "^0.0.6"
 
 console-browserify@^1.1.0:
   version "1.1.0"
@@ -1355,10 +1432,6 @@ constants-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
 
-contains-path@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/contains-path/-/contains-path-0.1.0.tgz#fe8cf184ff6670b6baef01a9d4861a5cbec4120a"
-
 convert-source-map@^1.1.0, convert-source-map@^1.5.0:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
@@ -1398,7 +1471,7 @@ create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
-cross-spawn@^5.0.1:
+cross-spawn@^5.0.1, cross-spawn@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
   dependencies:
@@ -1457,16 +1530,6 @@ dateformat@^1.0.12:
     get-stdin "^4.0.1"
     meow "^3.3.0"
 
-debug-log@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/debug-log/-/debug-log-1.0.1.tgz#2307632d4c04382b8df8a32f70b895046d52745f"
-
-debug@2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
-  dependencies:
-    ms "0.7.1"
-
 debug@2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.0.tgz#bc596bcabe7617f11d9fa15361eded5608b8499b"
@@ -1479,6 +1542,12 @@ debug@^2.1.1, debug@^2.2.0, debug@^2.6.8:
   dependencies:
     ms "2.0.0"
 
+debug@^3.0.1:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  dependencies:
+    ms "2.0.0"
+
 decamelize@^1.0.0, decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
@@ -1497,24 +1566,6 @@ deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
-define-properties@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.2.tgz#83a73f2fea569898fb737193c8f873caf6d45c94"
-  dependencies:
-    foreach "^2.0.5"
-    object-keys "^1.0.8"
-
-deglob@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/deglob/-/deglob-2.1.0.tgz#4d44abe16ef32c779b4972bd141a80325029a14a"
-  dependencies:
-    find-root "^1.0.0"
-    glob "^7.0.5"
-    ignore "^3.0.9"
-    pkg-config "^1.1.0"
-    run-parallel "^1.1.2"
-    uniq "^1.0.1"
-
 del@^2.0.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
@@ -1568,19 +1619,11 @@ diffie-hellman@^5.0.0:
     miller-rabin "^4.0.0"
     randombytes "^2.0.0"
 
-doctrine@1.5.0, doctrine@^1.2.2:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-1.5.0.tgz#379dce730f6166f76cefa4e6707a159b02c5a6fa"
-  dependencies:
-    esutils "^2.0.2"
-    isarray "^1.0.0"
-
-doctrine@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.0.0.tgz#c73d8d2909d22291e1a007a395804da8b665fe63"
+doctrine@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.0.2.tgz#68f96ce8efc56cc42651f1faadb4f175273b0075"
   dependencies:
     esutils "^2.0.2"
-    isarray "^1.0.0"
 
 dom-walk@^0.1.0:
   version "0.1.1"
@@ -1637,23 +1680,6 @@ error-ex@^1.2.0:
   dependencies:
     is-arrayish "^0.2.1"
 
-es-abstract@^1.7.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.7.0.tgz#dfade774e01bfcd97f96180298c449c8623fb94c"
-  dependencies:
-    es-to-primitive "^1.1.1"
-    function-bind "^1.1.0"
-    is-callable "^1.1.3"
-    is-regex "^1.0.3"
-
-es-to-primitive@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/es-to-primitive/-/es-to-primitive-1.1.1.tgz#45355248a88979034b6792e19bb81f2b7975dd0d"
-  dependencies:
-    is-callable "^1.1.1"
-    is-date-object "^1.0.1"
-    is-symbol "^1.0.1"
-
 es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
   version "0.10.37"
   resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.37.tgz#0ee741d148b80069ba27d020393756af257defc3"
@@ -1723,122 +1749,78 @@ escope@^3.6.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
-eslint-config-standard-jsx@4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/eslint-config-standard-jsx/-/eslint-config-standard-jsx-4.0.1.tgz#cd4e463d0268e2d9e707f61f42f73f5b3333c642"
-
-eslint-config-standard@10.2.1:
-  version "10.2.1"
-  resolved "https://registry.yarnpkg.com/eslint-config-standard/-/eslint-config-standard-10.2.1.tgz#c061e4d066f379dc17cd562c64e819b4dd454591"
-
-eslint-import-resolver-node@^0.2.0:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/eslint-import-resolver-node/-/eslint-import-resolver-node-0.2.3.tgz#5add8106e8c928db2cba232bcd9efa846e3da16c"
+eslint-config-prettier@^2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/eslint-config-prettier/-/eslint-config-prettier-2.9.0.tgz#5ecd65174d486c22dff389fe036febf502d468a3"
   dependencies:
-    debug "^2.2.0"
-    object-assign "^4.0.1"
-    resolve "^1.1.6"
+    get-stdin "^5.0.1"
 
-eslint-module-utils@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/eslint-module-utils/-/eslint-module-utils-2.0.0.tgz#a6f8c21d901358759cdc35dbac1982ae1ee58bce"
+eslint-plugin-prettier@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-2.3.1.tgz#e7a746c67e716f335274b88295a9ead9f544e44d"
   dependencies:
-    debug "2.2.0"
-    pkg-dir "^1.0.0"
+    fast-diff "^1.1.1"
+    jest-docblock "^21.0.0"
 
-eslint-plugin-import@~2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-import/-/eslint-plugin-import-2.2.0.tgz#72ba306fad305d67c4816348a4699a4229ac8b4e"
+eslint-scope@^3.7.1:
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
   dependencies:
-    builtin-modules "^1.1.1"
-    contains-path "^0.1.0"
-    debug "^2.2.0"
-    doctrine "1.5.0"
-    eslint-import-resolver-node "^0.2.0"
-    eslint-module-utils "^2.0.0"
-    has "^1.0.1"
-    lodash.cond "^4.3.0"
-    minimatch "^3.0.3"
-    pkg-up "^1.0.0"
-
-eslint-plugin-node@~4.2.2:
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-node/-/eslint-plugin-node-4.2.2.tgz#82959ca9aed79fcbd28bb1b188d05cac04fb3363"
-  dependencies:
-    ignore "^3.0.11"
-    minimatch "^3.0.2"
-    object-assign "^4.0.1"
-    resolve "^1.1.7"
-    semver "5.3.0"
-
-eslint-plugin-promise@~3.5.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-promise/-/eslint-plugin-promise-3.5.0.tgz#78fbb6ffe047201627569e85a6c5373af2a68fca"
-
-eslint-plugin-react@~6.10.0:
-  version "6.10.3"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-react/-/eslint-plugin-react-6.10.3.tgz#c5435beb06774e12c7db2f6abaddcbf900cd3f78"
-  dependencies:
-    array.prototype.find "^2.0.1"
-    doctrine "^1.2.2"
-    has "^1.0.1"
-    jsx-ast-utils "^1.3.4"
-    object.assign "^4.0.4"
-
-eslint-plugin-standard@~3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-standard/-/eslint-plugin-standard-3.0.1.tgz#34d0c915b45edc6f010393c7eef3823b08565cf2"
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
 
-eslint@~3.19.0:
-  version "3.19.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-3.19.0.tgz#c8fc6201c7f40dd08941b87c085767386a679acc"
+eslint@^4.13.0:
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.13.0.tgz#1991aa359586af83877bde59de9d41f53e20826d"
   dependencies:
-    babel-code-frame "^6.16.0"
-    chalk "^1.1.3"
-    concat-stream "^1.5.2"
-    debug "^2.1.1"
-    doctrine "^2.0.0"
-    escope "^3.6.0"
-    espree "^3.4.0"
+    ajv "^5.3.0"
+    babel-code-frame "^6.22.0"
+    chalk "^2.1.0"
+    concat-stream "^1.6.0"
+    cross-spawn "^5.1.0"
+    debug "^3.0.1"
+    doctrine "^2.0.2"
+    eslint-scope "^3.7.1"
+    espree "^3.5.2"
     esquery "^1.0.0"
     estraverse "^4.2.0"
     esutils "^2.0.2"
     file-entry-cache "^2.0.0"
-    glob "^7.0.3"
-    globals "^9.14.0"
-    ignore "^3.2.0"
+    functional-red-black-tree "^1.0.1"
+    glob "^7.1.2"
+    globals "^11.0.1"
+    ignore "^3.3.3"
     imurmurhash "^0.1.4"
-    inquirer "^0.12.0"
-    is-my-json-valid "^2.10.0"
+    inquirer "^3.0.6"
     is-resolvable "^1.0.0"
-    js-yaml "^3.5.1"
-    json-stable-stringify "^1.0.0"
+    js-yaml "^3.9.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
     levn "^0.3.0"
-    lodash "^4.0.0"
-    mkdirp "^0.5.0"
+    lodash "^4.17.4"
+    minimatch "^3.0.2"
+    mkdirp "^0.5.1"
     natural-compare "^1.4.0"
     optionator "^0.8.2"
-    path-is-inside "^1.0.1"
-    pluralize "^1.2.1"
-    progress "^1.1.8"
-    require-uncached "^1.0.2"
-    shelljs "^0.7.5"
-    strip-bom "^3.0.0"
+    path-is-inside "^1.0.2"
+    pluralize "^7.0.0"
+    progress "^2.0.0"
+    require-uncached "^1.0.3"
+    semver "^5.3.0"
+    strip-ansi "^4.0.0"
     strip-json-comments "~2.0.1"
-    table "^3.7.8"
+    table "^4.0.1"
     text-table "~0.2.0"
-    user-home "^2.0.0"
 
-espree@^3.4.0:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/espree/-/espree-3.4.1.tgz#28a83ab4aaed71ed8fe0f5efe61b76a05c13c4d2"
+espree@^3.5.2:
+  version "3.5.2"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.2.tgz#756ada8b979e9dcfcdb30aad8d1a9304a905e1ca"
   dependencies:
-    acorn "^5.0.1"
+    acorn "^5.2.1"
     acorn-jsx "^3.0.0"
 
-esprima@^2.6.0:
-  version "2.7.3"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+esprima@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
 
 esquery@^1.0.0:
   version "1.0.0"
@@ -1891,10 +1873,6 @@ execa@^0.7.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
-exit-hook@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
-
 expand-brackets@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
@@ -1911,6 +1889,14 @@ extend@~3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
 
+external-editor@^2.0.4:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.1.0.tgz#3d026a21b7f95b5726387d4200ac160d372c3b48"
+  dependencies:
+    chardet "^0.4.0"
+    iconv-lite "^0.4.17"
+    tmp "^0.0.33"
+
 extglob@^0.3.1:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
@@ -1925,20 +1911,23 @@ fast-deep-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
 
+fast-diff@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.1.2.tgz#4b62c42b8e03de3f848460b639079920695d0154"
+
 fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
 
 fast-levenshtein@~2.0.4:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.5.tgz#bd33145744519ab1c36c3ee9f31f08e9079b67f2"
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
 
-figures@^1.3.5:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+figures@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
   dependencies:
     escape-string-regexp "^1.0.5"
-    object-assign "^4.1.0"
 
 file-entry-cache@^2.0.0:
   version "2.0.0"
@@ -1973,10 +1962,6 @@ find-cache-dir@^1.0.0:
     make-dir "^1.0.0"
     pkg-dir "^2.0.0"
 
-find-root@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.0.0.tgz#962ff211aab25c6520feeeb8d6287f8f6e95807a"
-
 find-up@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
@@ -1991,10 +1976,10 @@ find-up@^2.0.0, find-up@^2.1.0:
     locate-path "^2.0.0"
 
 flat-cache@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.2.1.tgz#6c837d6225a7de5659323740b36d5361f71691ff"
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
   dependencies:
-    circular-json "^0.3.0"
+    circular-json "^0.3.1"
     del "^2.0.2"
     graceful-fs "^4.1.2"
     write "^0.2.1"
@@ -2015,10 +2000,6 @@ for-own@^0.1.4:
   dependencies:
     for-in "^1.0.1"
 
-foreach@^2.0.5:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
-
 forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
@@ -2063,9 +2044,9 @@ fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
     mkdirp ">=0.5 0"
     rimraf "2"
 
-function-bind@^1.0.2, function-bind@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.0.tgz#16176714c801798e4e8f2cf7f7529467bb4a5771"
+functional-red-black-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
 
 gauge@~2.7.3:
   version "2.7.4"
@@ -2080,16 +2061,6 @@ gauge@~2.7.3:
     strip-ansi "^3.0.1"
     wide-align "^1.1.0"
 
-generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
-
-generate-object-property@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
-  dependencies:
-    is-property "^1.0.0"
-
 get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
@@ -2129,7 +2100,7 @@ glob-parent@^2.0.0:
   dependencies:
     is-glob "^2.0.0"
 
-glob@7.1.1, glob@^7.0.3:
+glob@7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
   dependencies:
@@ -2140,7 +2111,7 @@ glob@7.1.1, glob@^7.0.3:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.0, glob@^7.0.5, glob@^7.1.2:
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
   dependencies:
@@ -2158,9 +2129,13 @@ global@~4.3.0:
     min-document "^2.19.0"
     process "~0.5.1"
 
-globals@^9.14.0:
-  version "9.14.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-9.14.0.tgz#8859936af0038741263053b39d0e76ca241e4034"
+globals@^10.0.0:
+  version "10.4.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-10.4.0.tgz#5c477388b128a9e4c5c5d01c7a2aca68c68b2da7"
+
+globals@^11.0.1:
+  version "11.1.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.1.0.tgz#632644457f5f0e3ae711807183700ebf2e4633e4"
 
 globals@^9.18.0:
   version "9.18.0"
@@ -2218,12 +2193,6 @@ has-unicode@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
 
-has@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
-  dependencies:
-    function-bind "^1.0.2"
-
 hash-base@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-2.0.2.tgz#66ea1d856db4e8a5470cadf6fce23ae5244ef2e1"
@@ -2297,13 +2266,17 @@ https-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
 
+iconv-lite@^0.4.17:
+  version "0.4.19"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
+
 ieee754@^1.1.4:
   version "1.1.8"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.8.tgz#be33d40ac10ef1926701f6f08a2d86fbfd1ad3e4"
 
-ignore@^3.0.11, ignore@^3.0.9, ignore@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.2.0.tgz#8d88f03c3002a0ac52114db25d2c673b0bf1e435"
+ignore@^3.3.3:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
 
 imurmurhash@^0.1.4:
   version "0.1.4"
@@ -2338,29 +2311,30 @@ ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
 
-inquirer@^0.12.0:
-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-0.12.0.tgz#1ef2bfd63504df0bc75785fff8c2c41df12f077e"
+inquirer@^3.0.6:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
   dependencies:
-    ansi-escapes "^1.1.0"
-    ansi-regex "^2.0.0"
-    chalk "^1.0.0"
-    cli-cursor "^1.0.1"
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.0"
+    cli-cursor "^2.1.0"
     cli-width "^2.0.0"
-    figures "^1.3.5"
+    external-editor "^2.0.4"
+    figures "^2.0.0"
     lodash "^4.3.0"
-    readline2 "^1.0.1"
-    run-async "^0.1.0"
-    rx-lite "^3.1.2"
-    string-width "^1.0.1"
-    strip-ansi "^3.0.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx-lite "^4.0.8"
+    rx-lite-aggregates "^4.0.8"
+    string-width "^2.1.0"
+    strip-ansi "^4.0.0"
     through "^2.3.6"
 
 interpret@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
 
-invariant@^2.2.2:
+invariant@^2.2.0, invariant@^2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.2.tgz#9e1f56ac0acdb6bf303306f338be3b204ae60360"
   dependencies:
@@ -2390,14 +2364,6 @@ is-builtin-module@^1.0.0:
   dependencies:
     builtin-modules "^1.0.0"
 
-is-callable@^1.1.1, is-callable@^1.1.3:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.3.tgz#86eb75392805ddc33af71c92a0eedf74ee7604b2"
-
-is-date-object@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/is-date-object/-/is-date-object-1.0.1.tgz#9aa20eb6aeebbff77fbd33e74ca01b33581d3a16"
-
 is-dotfile@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.3.tgz#a6a2f32ffd2dfb04f5ca25ecd0f6b83cf798a1e1"
@@ -2442,15 +2408,6 @@ is-glob@^2.0.0, is-glob@^2.0.1:
   dependencies:
     is-extglob "^1.0.0"
 
-is-my-json-valid@^2.10.0:
-  version "2.15.0"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.15.0.tgz#936edda3ca3c211fd98f3b2d3e08da43f7b2915b"
-  dependencies:
-    generate-function "^2.0.0"
-    generate-object-property "^1.1.0"
-    jsonpointer "^4.0.0"
-    xtend "^4.0.0"
-
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
@@ -2474,8 +2431,8 @@ is-path-in-cwd@^1.0.0:
     is-path-inside "^1.0.0"
 
 is-path-inside@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-1.0.0.tgz#fc06e5a1683fbda13de667aff717bbc10a48f37f"
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-1.0.1.tgz#8ef5b7de50437a3fdca6b4e865ef7aa55cb48036"
   dependencies:
     path-is-inside "^1.0.1"
 
@@ -2487,13 +2444,9 @@ is-primitive@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
 
-is-property@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
-
-is-regex@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.3.tgz#0d55182bddf9f2fde278220aec3a75642c908637"
+is-promise@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
 
 is-resolvable@^1.0.0:
   version "1.0.0"
@@ -2505,10 +2458,6 @@ is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 
-is-symbol@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.1.tgz#3cc59f00025194b6ab2e38dbae6689256b660572"
-
 is-typedarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
@@ -2535,16 +2484,20 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
+jest-docblock@^21.0.0:
+  version "21.2.0"
+  resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-21.2.0.tgz#51529c3b30d5fd159da60c27ceedc195faf8d414"
+
 js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@^3.5.1:
-  version "3.6.1"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.6.1.tgz#6e5fe67d8b205ce4d22fad05b7781e8dadcc4b30"
+js-yaml@^3.9.1:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.10.0.tgz#2e78441646bd4682e963f22b6e92823c309c62dc"
   dependencies:
     argparse "^1.0.7"
-    esprima "^2.6.0"
+    esprima "^4.0.0"
 
 jsbn@~0.1.0:
   version "0.1.1"
@@ -2570,7 +2523,11 @@ json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
 
-json-stable-stringify@^1.0.0, json-stable-stringify@^1.0.1:
+json-stable-stringify-without-jsonify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
+
+json-stable-stringify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
   dependencies:
@@ -2592,10 +2549,6 @@ jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
 
-jsonpointer@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
-
 jsprim@^1.2.2:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
@@ -2605,13 +2558,6 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
-jsx-ast-utils@^1.3.4:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/jsx-ast-utils/-/jsx-ast-utils-1.3.4.tgz#0257ed1cc4b1e65b39d7d9940f9fb4f20f7ba0a9"
-  dependencies:
-    acorn-jsx "^3.0.1"
-    object-assign "^4.1.0"
-
 kind-of@^3.0.2:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
@@ -2706,10 +2652,6 @@ lodash._isiterateecall@^3.0.0:
   version "3.0.9"
   resolved "https://registry.yarnpkg.com/lodash._isiterateecall/-/lodash._isiterateecall-3.0.9.tgz#5203ad7ba425fae842460e696db9cf3e6aac057c"
 
-lodash.cond@^4.3.0:
-  version "4.5.2"
-  resolved "https://registry.yarnpkg.com/lodash.cond/-/lodash.cond-4.5.2.tgz#f471a1da486be60f6ab955d17115523dd1d255d5"
-
 lodash.create@3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/lodash.create/-/lodash.create-3.1.1.tgz#d7f2849f0dbda7e04682bb8cd72ab022461debe7"
@@ -2734,11 +2676,7 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash@^4.0.0, lodash@^4.3.0:
-  version "4.17.2"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.2.tgz#34a3055babe04ce42467b607d700072c7ff6bf42"
-
-lodash@^4.14.0, lodash@^4.17.4, lodash@^4.2.0:
+lodash@^4.14.0, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.3.0:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
@@ -2877,21 +2815,15 @@ minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
-minimatch@^3.0.3:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
-  dependencies:
-    brace-expansion "^1.0.0"
-
 minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
-minimist@^1.1.0, minimist@^1.1.1, minimist@^1.1.3, minimist@^1.2.0:
+minimist@^1.1.3, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
-mkdirp@0.5.1, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
+mkdirp@0.5.1, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
@@ -2913,10 +2845,6 @@ mocha@3.4.2:
     mkdirp "0.5.1"
     supports-color "3.1.2"
 
-ms@0.7.1:
-  version "0.7.1"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
-
 ms@0.7.2:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
@@ -2931,9 +2859,9 @@ multi-part@^2.0.0:
   dependencies:
     mime-kind "^2.0.1"
 
-mute-stream@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.5.tgz#8fbfabb0a98a253d3184331f9e8deb7372fac6c0"
+mute-stream@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
 nan@^2.3.0:
   version "2.8.0"
@@ -3045,18 +2973,6 @@ object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
-object-keys@^1.0.10, object-keys@^1.0.8:
-  version "1.0.11"
-  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.11.tgz#c54601778ad560f1142ce0e01bcca8b56d13426d"
-
-object.assign@^4.0.4:
-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.0.4.tgz#b1c9cc044ef1b9fe63606fc141abbb32e14730cc"
-  dependencies:
-    define-properties "^1.1.2"
-    function-bind "^1.1.0"
-    object-keys "^1.0.10"
-
 object.omit@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
@@ -3070,9 +2986,11 @@ once@^1.3.0, once@^1.3.3:
   dependencies:
     wrappy "1"
 
-onetime@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+onetime@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  dependencies:
+    mimic-fn "^1.0.0"
 
 optionator@^0.8.2:
   version "0.8.2"
@@ -3101,7 +3019,7 @@ os-locale@^2.0.0:
     lcid "^1.0.0"
     mem "^1.1.0"
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1:
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
@@ -3188,7 +3106,7 @@ path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
-path-is-inside@^1.0.1:
+path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
 
@@ -3246,42 +3164,15 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
-pkg-conf@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-conf/-/pkg-conf-2.0.0.tgz#071c87650403bccfb9c627f58751bfe47c067279"
-  dependencies:
-    find-up "^2.0.0"
-    load-json-file "^2.0.0"
-
-pkg-config@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/pkg-config/-/pkg-config-1.1.1.tgz#557ef22d73da3c8837107766c52eadabde298fe4"
-  dependencies:
-    debug-log "^1.0.0"
-    find-root "^1.0.0"
-    xtend "^4.0.1"
-
-pkg-dir@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-1.0.0.tgz#7a4b508a8d5bb2d629d447056ff4e9c9314cf3d4"
-  dependencies:
-    find-up "^1.0.0"
-
 pkg-dir@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-2.0.0.tgz#f6d5d1109e19d63edf428e0bd57e12777615334b"
   dependencies:
     find-up "^2.1.0"
 
-pkg-up@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-1.0.0.tgz#3e08fb461525c4421624a33b9f7e6d0af5b05a26"
-  dependencies:
-    find-up "^1.0.0"
-
-pluralize@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-1.2.1.tgz#d1a21483fd22bb41e58a12fa3421823140897c45"
+pluralize@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
 
 prelude-ls@~1.1.2:
   version "1.1.2"
@@ -3291,6 +3182,10 @@ preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
+prettier@^1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.9.1.tgz#41638a0d47c1efbd1b7d5a742aaa5548eab86d70"
+
 private@^0.1.6, private@^0.1.7:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
@@ -3307,9 +3202,9 @@ process@~0.5.1:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/process/-/process-0.5.2.tgz#1638d8a8e34c2f440a91db95ab9aeb677fc185cf"
 
-progress@^1.1.8:
-  version "1.1.8"
-  resolved "https://registry.yarnpkg.com/progress/-/progress-1.1.8.tgz#e260c78f6161cdd9b0e56cc3e0a85de17c7a57be"
+progress@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
 
 prr@~0.0.0:
   version "0.0.0"
@@ -3408,7 +3303,7 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
-readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.1.4, readable-stream@^2.2.6, readable-stream@^2.3.3:
+readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.1.4, readable-stream@^2.2.2, readable-stream@^2.2.6, readable-stream@^2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
   dependencies:
@@ -3432,17 +3327,6 @@ readable-stream@^2.0.6:
     string_decoder "~1.0.0"
     util-deprecate "~1.0.1"
 
-readable-stream@~2.0.0:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    string_decoder "~0.10.x"
-    util-deprecate "~1.0.1"
-
 readdirp@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
@@ -3452,20 +3336,6 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
-readline2@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/readline2/-/readline2-1.0.1.tgz#41059608ffc154757b715d9989d199ffbf372e35"
-  dependencies:
-    code-point-at "^1.0.0"
-    is-fullwidth-code-point "^1.0.0"
-    mute-stream "0.0.5"
-
-rechoir@^0.6.2:
-  version "0.6.2"
-  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
-  dependencies:
-    resolve "^1.1.6"
-
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
@@ -3570,7 +3440,7 @@ require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
 
-require-uncached@^1.0.2:
+require-uncached@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
   dependencies:
@@ -3581,16 +3451,12 @@ resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
 
-resolve@^1.1.6, resolve@^1.1.7:
-  version "1.1.7"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
-
-restore-cursor@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
+restore-cursor@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
   dependencies:
-    exit-hook "^1.0.0"
-    onetime "^1.0.0"
+    onetime "^2.0.0"
+    signal-exit "^3.0.2"
 
 retry@^0.10.0:
   version "0.10.1"
@@ -3602,18 +3468,12 @@ right-align@^0.1.1:
   dependencies:
     align-text "^0.1.1"
 
-rimraf@2, rimraf@^2.5.1, rimraf@^2.6.1:
+rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.6.1:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   dependencies:
     glob "^7.0.5"
 
-rimraf@^2.2.8:
-  version "2.5.4"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.5.4.tgz#96800093cbf1a0c86bd95b4625467535c29dfa04"
-  dependencies:
-    glob "^7.0.5"
-
 ripemd160@^2.0.0, ripemd160@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.1.tgz#0f4584295c53a3628af7e6d79aca21ce57d1c6e7"
@@ -3621,19 +3481,21 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^2.0.0"
     inherits "^2.0.1"
 
-run-async@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/run-async/-/run-async-0.1.0.tgz#c8ad4a5e110661e402a7d21b530e009f25f8e389"
+run-async@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
   dependencies:
-    once "^1.3.0"
+    is-promise "^2.1.0"
 
-run-parallel@^1.1.2:
-  version "1.1.6"
-  resolved "https://registry.yarnpkg.com/run-parallel/-/run-parallel-1.1.6.tgz#29003c9a2163e01e2d2dfc90575f2c6c1d61a039"
+rx-lite-aggregates@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
+  dependencies:
+    rx-lite "*"
 
-rx-lite@^3.1.2:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-3.1.2.tgz#19ce502ca572665f3b647b10939f97fd1615f102"
+rx-lite@*, rx-lite@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
 
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
@@ -3643,10 +3505,6 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0,
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
 
-semver@5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
-
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -3680,15 +3538,7 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
-shelljs@^0.7.5:
-  version "0.7.7"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.7.tgz#b2f5c77ef97148f4b4f6e22682e10bba8667cff1"
-  dependencies:
-    glob "^7.0.0"
-    interpret "^1.0.0"
-    rechoir "^0.6.2"
-
-signal-exit@^3.0.0:
+signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
@@ -3696,20 +3546,11 @@ slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
 
-slice-ansi@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
-
-snazzy@7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/snazzy/-/snazzy-7.0.0.tgz#95edaccc4a8d6f80f4ac5cc7b520e8f8f9ac2325"
+slice-ansi@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
   dependencies:
-    chalk "^1.1.0"
-    inherits "^2.0.1"
-    minimist "^1.1.1"
-    readable-stream "^2.0.6"
-    standard-json "^1.0.0"
-    text-table "^0.2.0"
+    is-fullwidth-code-point "^2.0.0"
 
 sntp@1.x.x:
   version "1.0.9"
@@ -3767,35 +3608,6 @@ sshpk@^1.7.0:
     jsbn "~0.1.0"
     tweetnacl "~0.14.0"
 
-standard-engine@~7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/standard-engine/-/standard-engine-7.0.0.tgz#ebb77b9c8fc2c8165ffa353bd91ba0dff41af690"
-  dependencies:
-    deglob "^2.1.0"
-    get-stdin "^5.0.1"
-    minimist "^1.1.0"
-    pkg-conf "^2.0.0"
-
-standard-json@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/standard-json/-/standard-json-1.0.1.tgz#75dd5952c59bb6cb358b136af0633ae3d7f35b6b"
-  dependencies:
-    concat-stream "^1.5.0"
-
-standard@10.0.2:
-  version "10.0.2"
-  resolved "https://registry.yarnpkg.com/standard/-/standard-10.0.2.tgz#974c1c53cc865b075a4b576e78441e1695daaf7b"
-  dependencies:
-    eslint "~3.19.0"
-    eslint-config-standard "10.2.1"
-    eslint-config-standard-jsx "4.0.1"
-    eslint-plugin-import "~2.2.0"
-    eslint-plugin-node "~4.2.2"
-    eslint-plugin-promise "~3.5.0"
-    eslint-plugin-react "~6.10.0"
-    eslint-plugin-standard "~3.0.1"
-    standard-engine "~7.0.0"
-
 "statuses@>= 1.3.1 < 2":
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
@@ -3832,16 +3644,19 @@ string-width@^2.0.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^3.0.0"
 
+string-width@^2.1.0, string-width@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^4.0.0"
+
 string_decoder@^1.0.0, string_decoder@~1.0.0, string_decoder@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.3.tgz#0fc67d7c141825de94282dd536bec6b9bce860ab"
   dependencies:
     safe-buffer "~5.1.0"
 
-string_decoder@~0.10.x:
-  version "0.10.31"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
-
 stringstream@~0.0.4:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
@@ -3852,6 +3667,12 @@ strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   dependencies:
     ansi-regex "^2.0.0"
 
+strip-ansi@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
+  dependencies:
+    ansi-regex "^3.0.0"
+
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -3886,22 +3707,22 @@ supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
 
-supports-color@^4.2.1:
+supports-color@^4.0.0, supports-color@^4.2.1:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
   dependencies:
     has-flag "^2.0.0"
 
-table@^3.7.8:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/table/-/table-3.8.3.tgz#2bbc542f0fda9861a755d3947fefd8b3f513855f"
+table@^4.0.1:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
   dependencies:
-    ajv "^4.7.0"
-    ajv-keywords "^1.0.0"
-    chalk "^1.1.1"
-    lodash "^4.0.0"
-    slice-ansi "0.0.4"
-    string-width "^2.0.0"
+    ajv "^5.2.3"
+    ajv-keywords "^2.1.0"
+    chalk "^2.1.0"
+    lodash "^4.17.4"
+    slice-ansi "1.0.0"
+    string-width "^2.1.1"
 
 tapable@^0.2.7:
   version "0.2.8"
@@ -3928,7 +3749,7 @@ tar@^2.2.1:
     fstream "^1.0.2"
     inherits "2"
 
-text-table@^0.2.0, text-table@~0.2.0:
+text-table@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
 
@@ -3942,6 +3763,12 @@ timers-browserify@^2.0.4:
   dependencies:
     setimmediate "^1.0.4"
 
+tmp@^0.0.33:
+  version "0.0.33"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
+  dependencies:
+    os-tmpdir "~1.0.2"
+
 to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
@@ -3950,6 +3777,10 @@ to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
 
+to-fast-properties@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
+
 tough-cookie@~2.3.0:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.3.tgz#0b618a5565b6dea90bf3425d04d55edc475a7561"
@@ -3996,7 +3827,7 @@ type-detect@^4.0.0:
   version "4.0.5"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.5.tgz#d70e5bc81db6de2a381bcaca0c6e0cbdc7635de2"
 
-typedarray@~0.0.5:
+typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
@@ -4025,10 +3856,6 @@ uid-number@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
 
-uniq@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/uniq/-/uniq-1.0.1.tgz#b31c5ae8254844a3a8281541ce2b04b865a734ff"
-
 url@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
@@ -4040,12 +3867,6 @@ user-home@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
 
-user-home@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/user-home/-/user-home-2.0.0.tgz#9c70bfd8169bc1dcbf48604e0f04b8b49cde9e9f"
-  dependencies:
-    os-homedir "^1.0.0"
-
 utf8-length@^0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/utf8-length/-/utf8-length-0.0.1.tgz#d315c4bed529c977f18dd35c73d72628327d9ada"
@@ -4187,7 +4008,7 @@ xhr@^2.3.1:
     parse-headers "^2.0.0"
     xtend "^4.0.0"
 
-xtend@^4.0.0, xtend@^4.0.1:
+xtend@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"