public async Task <UrunResponse> GetAsync(long id)
        {
            var urunResponse = new UrunResponse();
            var urun         = await _urunRepository.GetAsync(id);

            if (urun == null)
            {
                urunResponse.Message = "Ürün Bulunamadı.";
                urunResponse.Urunler = null;
            }
            else
            {
                urunResponse.Urunler.Add(urun);
            }
            return(urunResponse);
        }