public async Task <IActionResult> GetAnswers(int id, [FromQuery] AnswerParams answerParams)
{
int pageSize = answerParams.PageSize;
int pageIndex = answerParams.PageIndex;
var answersFromRepo = await _repo.GetAnswersAsync(id, answerParams);
var answers = _mapper.Map <IEnumerable <Answer> >(answersFromRepo);
return(Ok(new { answers, answerParams.Length }));
}