Angular AuthSession model

gistfile1.js

/**
 * Authentication session handling token and user id
 */
angular.module('fn.services.authentication', [])
.service('srvAuthenticationSession', ['$window', function ($window) {

  this.save = function() {
    var data = {'userId':this.userId, 'token':this.token};
    $window.localStorage['com.fansnation.authorisationSession'] = JSON.stringify(data);
  }

  this.load = function() {
    var session = JSON.parse($window.localStorage['com.fansnation.authorisationSession']) || {};
    this.userId = session['userId'] || null;
    this.token = session['token'] || null;
  }

  this.create = function (userId, token) {
    this.userId = userId;
    this.token = token;

    this.save();
  };

  this.destroy = function () {
    this.userId = null;
    this.token = null;

    this.save();
  };

  this.isValid = function() {
    return !!this.token && !!this.userId;
  };

  return this;
}])