resource.js

(function (angular) {

  function Data ($resource, config) {
    return (resource) => {
      const server = [config.server, resource].join("/");
      return $resource(server,
        { '_id': '@_id' }, {
          get: {
            url: server.concat("/:_id"),
            method: 'GET'
          },
          delete: {
            url: server.concat("/:_id"),
            method: 'DELETE',
          },
          update: {
            url: server.concat("/:_id"),
            method: 'PUT'
          }
        });
    };
  }

  function Resource ($q, Data) {
    const scope = this;

    scope.get = (resource, params) => {
      var defered = $q.defer();

      Data(resource).get(params).$promise.then((response) => {
        defered.resolve(response);
      });

      return defered.promise;
    };

    scope.save = (resource, params) => {
      var defered = $q.defer();

      Data(resource).save(params).$promise.then((response) => {
        defered.resolve(response);
      });

      return defered.promise;
    };

    scope.update = (resource, params) => {
      var defered = $q.defer();

      Data(resource).update(params).$promise.then((response) => {
        defered.resolve(response);
      });

      return defered.promise;
    };

    scope.delete = (resource, params) => {
      var defered = $q.defer();

      Data(resource).delete(params).$promise.then((response) => {
        defered.resolve(response);
      });

      return defered.promise;
    };

    return this;
  }

  angular.module('app.service.resource', [])
    .factory('Data', Data)
    .service('Resource', Resource);

})(angular);