public Task <HttpResponseMessage> Post([FromBody] dynamic body) { HttpResponseMessage response = new HttpResponseMessage(); var command = new RegisterUserCommand( fullName: (string)body.fullName, username: (string)body.username, email: (string)body.email, password: (string)body.password, confirmpass: (string)body.confirmPass ); _service.Register(command); _service.Authenticate("andrebaltieri", "123456"); if (_notification.HasNotifications()) { foreach (var item in _notification.Notify()) { ModelState.AddModelError("", item.Value); } response = Request.CreateResponse(HttpStatusCode.BadRequest, _notification.Notify()); } else { response = Request.CreateResponse(HttpStatusCode.OK, command); } var tsc = new TaskCompletionSource <HttpResponseMessage>(); tsc.SetResult(response); return(tsc.Task); }