Simple $http wrapper in AngularJS

httpWrapper.js

angular.module('app')
  .factory('AppSvc', function ($http, $q) {
      return {
        ajaxRq: function (req, cb) {
          var deferred = $q.defer();
          $http(req)
            .success(function (data, status, headers, cfg) {
              if (cb) {
                deferred.resolve(cb({
                  status: status,
                  data: data
                }));
              }
              else {
                deferred.resolve(data);
              }
            })
            .error(function (data, status, headers, cfg) {
              deferred.reject({
                status: status,
                data: data
              });
            });
          return deferred.promise;
        }  
      }
    });
    
// sample service that uses the wrapper
angular.modlue('app')
  .factory('DataSvc', function (AppSvc) {
    return {
      getEvents: function (params) {
        return AppSvc.ajaxRq({
          url: '',
          mehtod: 'POST',
          headers: '',
          data: JSON.stringify(params)
        });
      }
    }
  });
  
// using it in a controller
angular.module('app')
  .controller('AppCtrl', function ($scope, DataSvc) {
    var getDataProm = DataSvc.getEvents({});
    getDataProm.then(function (res) {
      var status = res.status,
          $scope.data = res.data
    });
  });