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); }