public async Task <IActionResult> GetQuestions([FromQuery] QuestionParams questionParams)
{
int pageSize = questionParams.PageSize;
int pageIndex = questionParams.PageIndex;
var questionsFromRepo = await _repo.GetQuestionsAsync(questionParams);
var questions = _mapper.Map <IEnumerable <QuestionToReturnDto> >(questionsFromRepo);
return(Ok(new { questions, questionParams.Length }));
}