public async Task <IActionResult> GetPartsByNumber(int userId, string part)
        {
            if (userId != int.Parse(User.FindFirst(ClaimTypes.NameIdentifier).Value))
            {
                return(Unauthorized());
            }

            var partFromRepo = await _repo.GetPartsByNumber(userId, part);

            PartForReturnDto partForReturn = _mapper.Map <PartForReturnDto>(partFromRepo);

            return(Ok(partForReturn));
        }