我正在使用 C# 和 PayPal Rest API 来获取批准的付款并执行它。但是,我需要更新与已批准付款相关的交易。PayPal 文档内容如下:
使用此调用执行(完成)已由付款人批准的 PayPal 付款。在执行付款时,您可以选择通过传入一笔或多笔交易来更新交易信息。
这是我的代码
//Update the payment details in case totals changed because of a new address/zipcode
Details amountDetails = new Details();
amountDetails.subtotal = ValidationHelper.GetString(prices[Order.CartPricesEnum.Subtotal], "0");
amountDetails.tax = ValidationHelper.GetString(prices[Order.CartPricesEnum.Tax], "0");
amountDetails.shipping = ValidationHelper.GetString(prices[Order.CartPricesEnum.Shipping], "0");
Amount amount = new Amount();
amount.total = ValidationHelper.GetString(prices[Order.CartPricesEnum.Total], "0");
amount.currency = "USD";
amount.details = amountDetails;
//update the transaction to make sure we have accounted for any updated prices
Transactions trn = new Transactions();
trn.amount = amount;
List<Transactions> trns = new List<Transactions>();
trns.Add(trn);
//Create a payment execution object
PaymentExecution paymentExecution = new PaymentExecution();
paymentExecution.payer_id = payPalPayerID;
paymentExecution.transactions = trns;
//Execute (complete) the payment
Payment newPayment = payment.Execute(accessToken, paymentExecution);
问题是,当它运行时,我收到以下错误:
{"name":"VALIDATION_ERROR","details":[{"field":"transactions[0].total","issue":"Required field missing"},{"field":"transactions[0].currency","issue":"Required field missing"},{"field":"transactions[0].amount","issue":"This field name is not defined for this resource type"}],"message":"Invalid request - see details","information_link":"https://developer.paypal.com/webapps/developer/docs/api/#VALIDATION_ERROR","debug_id":"bcba38f3c56d7"}
这告诉我我缺少 .total 和 .currency,并且 .amount 字段未定义。但是,您可以清楚地看到我正在设置总计和货币,并且金额字段是您可以根据 PayPal API 文档在交易对象上设置的唯一字段:
transactions
array of transaction objects
Transactional details if updating a payment. Note that this instance of the transactions object accepts only the amount object.
所以,我的问题是:我怎样才能获得批准的付款,更新付款交易的价格,然后执行该付款?