public IActionResult Post(string slide) { var status = false; string message = ResultState.Add_FALSE; var data = JsonConvert.DeserializeObject <Slide>(slide); if (User.Identity.IsAuthenticated) { var userId = this.User.FindFirst(ClaimTypes.NameIdentifier).Value; data.UserId = userId; _slideRepository.AddSlide(data); _slideRepository.SaveChange(); status = true; message = ResultState.Add_SUCCESS; } return(Json(new { message = message, status = status })); }