Add cookie storage support

package.json

@@ -60,7 +60,8 @@
   "jsnext:main": "es/index.js",
   "types": "./index.d.ts",
   "dependencies": {
-    "aws-sdk": "^2.6.0"
+    "aws-sdk": "^2.6.0",
+    "js-cookie": "^2.1.4"
   },
   "devDependencies": {
     "babel-cli": "^6.23.0",
@@ -80,6 +81,6 @@
     "react": "^16.0.0-alpha.6",
     "react-native": "^0.44.0",
     "rimraf": "^2.5.4",
-    "webpack": "^1.13.1"
+    "webpack": "^1.15.0"
   }
 }

src/CookieStorage.js

@@ -0,0 +1,70 @@
+
+import * as Cookies from "js-cookie";
+
+/** @class */
+export default class CookieStorage {
+
+  /**
+   * Constructs a new CookieStorage object
+   * @param {object} data Creation options.
+   * @param {string} data.domain Cookies domain (mandatory).
+   * @param {string} data.path Cookies path (default: '/')
+   * @param {integer} data.expires Cookie expiration (in days, default: 365)
+   */
+  constructor(data) {
+    this.domain = data.domain;
+    if (data.path) {
+      this.path = data.path;
+    } else {
+      this.path = '/';
+    }
+    if (data.expire){
+      this.expires = data.expires;
+    } else {
+      this.expires = 365;
+    }
+  }
+
+  /**
+   * This is used to set a specific item in storage
+   * @param {string} key - the key for the item
+   * @param {object} value - the value
+   * @returns {string} value that was set
+   */
+  setItem(key, value) {
+    Cookies.set(key, value, {path: this.path, expires: this.expires, domain: this.domain});
+    return Cookies.get(key);
+  }
+
+  /**
+   * This is used to get a specific key from storage
+   * @param {string} key - the key for the item
+   * This is used to clear the storage
+   * @returns {string} the data item
+   */
+  getItem(key) {
+    return Cookies.get(key)
+  }
+
+  /**
+   * This is used to remove an item from storage
+   * @param {string} key - the key being set
+   * @returns {string} value - value that was deleted
+   */
+  removeItem(key) {
+    return Cookies.remove(key, { path: this.path, domain: this.domain, secure: true});
+  }
+
+  /**
+   * This is used to clear the storage
+   * @returns {string} nothing
+   */
+  clear() {
+    var cookies = Cookies.get();
+    var index;
+    for (index = 0; index < cookies.length; ++index) {
+      Cookies.remove(cookies[index]);
+    }
+    return {};
+  }
+}

src/index.js

@@ -24,6 +24,7 @@ export { default as CognitoUser } from './CognitoUser';
 export { default as CognitoUserAttribute } from './CognitoUserAttribute';
 export { default as CognitoUserPool } from './CognitoUserPool';
 export { default as CognitoUserSession } from './CognitoUserSession';
+export { default as CookieStorage } from './CookieStorage';
 export { default as DateHelper } from './DateHelper';
 
 // The version of crypto-browserify included by aws-sdk only