带有信用卡支付方式的 Paypal Rest API

Question

这就是我创建 PayPal 付款的方式。

 var apiContext = GetApiContext(clientId, clientSecret);

 CreditCard creditCard = new CreditCard();
 creditCard.number = "4877274905927862";
 creditCard.type = "visa";
 creditCard.expire_month = 11;
 creditCard.expire_year = 2018;
 creditCard.cvv2 = "874";
 creditCard.first_name = firstName;
 creditCard.last_name = lastName;

 Amount amount = new Amount();
 amount.total = "7.47";
 amount.currency = "USD";

 Transaction transaction = new Transaction();
 transaction.amount = amount;
 transaction.description = "This is the payment transaction description.";

 List<Transaction> transactions = new List<Transaction>();
 transactions.Add(transaction);

 FundingInstrument fundingInstrument = new FundingInstrument();
 fundingInstrument.credit_card = creditCard;

 List<FundingInstrument> fundingInstruments = new List<FundingInstrument>();
 fundingInstruments.Add(fundingInstrument);

 Payer payer = new Payer();
 payer.funding_instruments = fundingInstruments;
 payer.payment_method = "credit_card";

 Payment payment = new Payment();
 payment.intent = "sale";
 payment.payer = payer;
 payment.transactions = transactions;

 Payment createdPayment = payment.Create(apiContext);

对于 payment.execute，我需要付款 ID 和付款人 ID。但付款人 ID 为空 你能告诉我，我怎样才能得到付款人ID？我错过了什么吗？

Answer 1

请参考 Paypal pro API。我认为这对您有好处，并为您提供更好的知识。

Answer 2

信用卡支付时无需payment.Execute(...)。

创建付款后...

Payment createdPayment = payment.Create(apiContext);

...，只需拨打createdPayment.id 获取付款ID。

如果你想通过paypal方式付款 需要payment.Create(...)，然后是payment.Execute(...)（在买家通过重定向到 PayPal 批准付款之后）。

关于付款人 ID

当您通过 paypal 方式付款时，您执行payment.Create(...)，然后将买家重定向到 PayPal。买家批准付款后，PayPal 会重定向到您的网址，并在查询字符串中为您提供PayerID。然后，您将像这样执行付款：

var execution = new PaymentExecution { payer_id = Request.Params["PayerID"] };
payment.Execute(apiContext, execution);