public async Task <IActionResult> AddItemAmount(string id, int amountToAdd)
        {
            try
            {
                await _repository.AddItemAmountAsync(id, amountToAdd);

                return(NoContent());
            }
            catch (NotFoundException e)
            {
                return(NotFound(e.Message));
            }
            catch (FullStorageException e)
            {
                return(BadRequest(e.Message));
            }
        }