public async Task <ActionResult <VacancyDto> > GetVacancyById(int vacancyId)
        {
            try
            {
                var vacancy = await _vacancyService.GetVacancyByIdAsync(vacancyId);

                var vacancyDto = _mapper.Map <VacancyDto>(vacancy);
                return(Ok(vacancyDto));
            }
            catch (VacancyValidationException vacancyValidationException)
                when(vacancyValidationException.InnerException is NotFoundVacancyException)
                {
                    var innerMessage = GetInnerMessage(vacancyValidationException);

                    return(NotFound(innerMessage));
                }
            catch (VacancyValidationException vacancyValidationException)
            {
                var innerMessage = GetInnerMessage(vacancyValidationException);
                return(BadRequest(innerMessage));
            }
            catch (VacancyServiceException vacancyServiceException)
            {
                return(Problem(vacancyServiceException.Message));
            }
        }