service deferred

	var myService = function($http, $q, $timeout) {
        this.doItAsync = function() {
            var deferred = $q.defer();
            ...
            return deferred.promise;
        };
	};
 
	angular.module('global.services', []);
 	myService.$inject = ['$http', '$q', '$timeout'];
	angular.module('global.services').service('myService', myService);