acha-framework/src/frontend/core/scripts/services/identity-service.js

is a modular framework on both client (angular.js) and server (node.js) side, it provides security, orm, ioc, obfuscation and ...

(function ($, angular, underscore, window, document, undefined) {
  'use strict';
  angular.module('frontend.services').factory('identityService', [
    'ipCookie',
    function ($cookie) {
      return {
        accountPath: '/{0}/account',
        setToken: function (userId, token) {
          $cookie('userId', userId, { path: '/' });
          $cookie('token', token, { path: '/' });
        },
        clearToken: function () {
          $cookie.remove('userId', { path: '/' });
          $cookie.remove('token', { path: '/' });
        },
        getToken: function () {
          return $cookie('token');
        }
      };
    }
  ]);
}(jQuery, angular, _, window, document));