public IActionResult CreateQuestions([FromBody] IEnumerable <QuestionCreateDto> questions) { if (questions == null || !questions.Any()) { return(BadRequest()); } var questionEnties = Mapper.Map <IEnumerable <Questions> >(questions); _questionRepository.AddManyQuestion(questionEnties); if (!_questionRepository.Save()) { return(StatusCode(500, "Đăng ký câu hỏi không thành công !")); } //return Ok(); var questionCollectionToReturn = Mapper.Map <IEnumerable <QuestionDto> >(questionEnties); var idAsString = string.Join(",", questionEnties.Select(x => x.Id)); return(CreatedAtRoute("GetQuestionCollection", new { ids = idAsString }, questionCollectionToReturn)); }