You have syntax errors in how you're injecting the `$http` dependency into your factory that most likely are breaking the factory code. You are not currently including the factory method within the array where your dependencies are injected. There are also no quotation marks around `$http` and it's not being injected into the factory correctly (there is no `$` symbol when it is passed as a param to the function). It should be:

    angular
    .module('dataLayerModule', [])
    .factory('datalayer', ['$http', function ($http) {

        //some method in here that uses http request
        return factory;
    }]);