public IActionResult AddMarkCourseTeacher(MarkCourseTeacherViewModel markCourseTeacher)
        {
            if (!ModelState.IsValid)
            {
                return(NoContent());
            }
            markCourseTeacher.UserId = Convert.ToInt32(_signInManager.UserManager.GetUserId(User));
            _markService.AddMarkCourseTeacher(_mapper.Map <MarkCourseTeacherViewModel, MarkCourseTeacherDto>(markCourseTeacher));

            return(Content(JsonConvert.SerializeObject($"Success add mark {markCourseTeacher.Mark}"), "application/json"));
        }