AngularJS Services Pattern

services.js

var services = angular.module('services', []);

services.factory('catalog' ['$http', function($http) {
  var catalog = {};
  
  catalog.init = function() {
    return $http.get('/api/catalog').then(function (response) {
      angular.extend(catalog, response.data);
    });
  };
  
  return catalog;
}]);