How can I extend $q promise in Angularjs with a .success and .error

Question

I wrote this little code in a custom service in AngularJS.

In my service:

        var deferred = $q.defer();
        var promise = deferred.promise;         


        

Answer 1

Here's a full solution picking up where @jessegavin left off.

var myApp = angular.module("myApp", []);

myApp.config(function ($provide) {

  $provide.decorator('$q', function ($delegate) {
    var defer = $delegate.defer;
    $delegate.defer = function () {
      var deferred = defer();
      deferred.promise.success = function (fn) {
        deferred.promise.then(function(response) {
          fn(response.data, response.status, response.headers);
        });
      return deferred.promise;
      };
      deferred.promise.error = function (fn) {
        deferred.promise.then(null, function(response) {
          fn(response.data, response.status, response.headers);
        });
        return deferred.promise;
      };
      return deferred;
    };
    return $delegate;
  });

});