protected async Task <Stone> AdiquirenteAsync(Configuracao loja_config, string bandeira) { Stone stn = new Stone(); stn.MerchantKey = loja_config.Stonekey; stn.RequestKey = "857a5a07-ff3c-46e3-946e-452e25f149eb"; CreditCardTransactionResultCollection[] cctri; cctri = new CreditCardTransactionResultCollection[1]; cctri[0] = new CreditCardTransactionResultCollection(); CreditCard card = new CreditCard(); card.CreditCardBrand = bandeira; card.InstantBuyKey = "3b3b5b62 - 6660 - 428d - 905e-96f49d46ae28"; card.IsExpiredCreditCard = false; card.MaskedCreditCardNumber = "411111****1111"; cctri[0].CreditCard = card; stn.CreditCardTransactionResultCollection = cctri; Stone obj = await _transacao.AddTransacaoStone(stn); return(obj); }