public IActionResult AddMarkTeacher(MarkTeacherViewModel markTeacher) { if (!ModelState.IsValid) { return(NoContent()); } markTeacher.UserId = Convert.ToInt32(_signInManager.UserManager.GetUserId(User)); _markService.AddMarkTeacher(_mapper.Map <MarkTeacherViewModel, MarkTeacherDto>(markTeacher)); return(Content(JsonConvert.SerializeObject($"Success add mark {markTeacher.Mark}"), "application/json")); }