Return thenables from Firebase directly

package.json

@@ -1,7 +1,7 @@
 {
   "name": "firebase-unchained",
   "version": "1.5.0",
-  "description": "Promise version of Firebase API without chaining",
+  "description": "Firebase API without chaining",
   "main": "lib/index.js",
   "repository": {
     "type": "git",
@@ -17,6 +17,9 @@
   },
   "author": "Seggy Umboh <sumboh@eta.ai>",
   "license": "ISC",
+  "peerDependencies": {
+    "firebase": ">= 2.4.0 < 3"
+  },
   "devDependencies": {
     "babel-cli": "^6.3.17",
     "babel-eslint": "^4.1.6",

src/api.js

@@ -13,9 +13,7 @@ export function pauthWithCustomToken (db) {
 export function pget (db) {
   return (path) => {
     const ref = path.once ? path : db.child(path)
-    return new Promise((resolve, reject) => {
-      ref.once('value', resolve, reject)
-    })
+    return ref.once('value')
   }
 }
 
@@ -58,32 +56,21 @@ export function parray (db) {
 export function ppush (db) {
   return function ppush (path, value) {
     const ref = path.push ? path : db.child(path)
-    if (arguments.length < 2) {
-      return Promise.resolve(ref.push())
-    }
-    return new Promise((resolve, reject) => {
-      ref.push(value, (err) => err ? reject(err) : resolve())
-    })
+    return ref.push(value)
   }
 }
 
 export function pset (db) {
   return (path, value) => {
     const ref = path.set ? path : db.child(path)
-    return new Promise((resolve, reject) => {
-      ref.set(value, (err) => err ? reject(err) : resolve())
-    })
+    return ref.set(value)
   }
 }
 
 export function psetWithPriority (db) {
   return function (path, value, priority) {
     const ref = path.setWithPriority ? path : db.child(path)
-    return new Promise(function (resolve, reject) {
-      ref.setWithPriority(value, priority, function (err) {
-        return err ? reject(err) : resolve()
-      })
-    })
+    return ref.setWithPriority(value, priority)
   }
 }
 
@@ -97,18 +84,14 @@ export function psetPriority (db) {
 export function pupdate (db) {
   return (path, value) => {
     const ref = path.update ? path : db.child(path)
-    return new Promise((resolve, reject) => {
-      ref.update(value, (err) => err ? reject(err) : resolve())
-    })
+    return ref.update(value)
   }
 }
 
 export function premove (db) {
   return (path) => {
     const ref = path.remove ? path : db.child(path)
-    return new Promise((resolve, reject) => {
-      ref.remove((err) => err ? reject(err) : resolve())
-    })
+    return ref.remove()
   }
 }