asp.net - 贝宝无效的交易ID

Question

我正在 asp.net 项目中实现 Paypal Express Checkout 功能，该功能需要授权，然后取消或获取授权金额。我正在使用他们的版本 = 104.0 的 API。

据我了解整个过程，我做的一切都是正确的：

• 我在付款详细信息中调用 SetExpressCheckout 方法，并将 ActionType 设置为“授权”

  SetExpressCheckoutRequestDetailsType reqDetails = new SetExpressCheckoutRequestDetailsType();
  reqDetails.ReturnURL = "http://some.url";
  reqDetails.CancelURL = "http://some.url";
  reqDetails.NoShipping = "1";
  reqDetails.OrderDescription = "You're about to buy items for " + payment.Amount.ToString("F");
  reqDetails.cpplogoimage = "http://some.ulr/image.jpb";
  reqDetails.PaymentDetails = new PaymentDetailsType[1];
  reqDetails.PaymentDetails[0] = new PaymentDetailsType();
  reqDetails.PaymentDetails[0].PaymentDetailsItem = new PaymentDetailsItemType[cart.LineItems.Count];
  int i = 0;
  foreach (LineItemModel li in cart.LineItems)
  {
      PaymentDetailsItemType item = new PaymentDetailsItemType();
      item.Amount = new BasicAmountType();
      item.Amount.Value = li.TotalIncludingShipping.ToString("F");
      item.Amount.currencyID = CurrencyCodeType.AUD;
      item.Name = li.ProductItem.DisplayName;
      item.Number = li.ProductItem.SKU;
      item.Quantity = li.Quantity.ToString();
      item.Description = "";
      reqDetails.PaymentDetails[0].PaymentDetailsItem.SetValue(item, i);
      i++;
  }
  reqDetails.OrderTotal = new BasicAmountType()
  {
      currencyID = CurrencyCodeType.AUD,
      Value = payment.Amount.ToString("F")
  };
  reqDetails.PaymentDetails[0].PaymentAction = PaymentActionCodeType.Authorization;
  reqDetails.PaymentDetails[0].PaymentActionSpecified = true;
  SetExpressCheckoutReq req = new SetExpressCheckoutReq()
  {
      SetExpressCheckoutRequest = new SetExpressCheckoutRequestType()
      {
          Version = "104.0",
          SetExpressCheckoutRequestDetails = reqDetails
      }
  };
  

• 一切正常，并且在我的测试个人帐户的通知中的 Paypal 后端我可以看到金额已自动完成的消息

• 然后我打电话给 DoExpressCheckout。这是请求的代码

  DoExpressCheckoutPaymentReq payReq = new DoExpressCheckoutPaymentReq()
  {
      DoExpressCheckoutPaymentRequest = new DoExpressCheckoutPaymentRequestType()
      {
          Version = ConfigurationManager.AppSettings["PaypalAPIVersion"],
          DoExpressCheckoutPaymentRequestDetails = new DoExpressCheckoutPaymentRequestDetailsType()
          {
               Token = token,
               PayerID = payerID,
               PaymentDetails = new PaymentDetailsType[1]
          }
      }
  };           
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentAction = PaymentActionCodeType.Authorization;
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentActionSpecified = true;
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentDetails[0] = new PaymentDetailsType();
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentDetails[0].PaymentAction = PaymentActionCodeType.Authorization;
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentDetails[0].PaymentActionSpecified = true;
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentDetails[0].OrderTotal = new BasicAmountType();
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentDetails[0].OrderTotal.currencyID = CurrencyCodeType.AUD;
  payReq.DoExpressCheckoutPaymentRequest.DoExpressCheckoutPaymentRequestDetails.PaymentDetails[0].OrderTotal.Value = total.ToString("F");
  

• 此请求也返回“成功”。我保存响应的 DoExpressCheckoutPaymentResponseDetails.PaymentInfo[0].TransactionID 以备将来使用

• 但是，当我使用上一个响应中的事务 ID 运行 DoAuthorize 时，我得到“失败”。这是请求代码：

  DoAuthorizationReq authReq = new DoAuthorizationReq()
  {
      DoAuthorizationRequest = new DoAuthorizationRequestType() 
      {
          Version = "104.0",
          TransactionID = doCheckoutTransactionId
      }
  };
  authReq.DoAuthorizationRequest.Amount = new BasicAmountType();
  authReq.DoAuthorizationRequest.Amount.currencyID = CurrencyCodeType.AUD;
  authReq.DoAuthorizationRequest.Amount.Value = total.ToString("F");
  

响应显示“失败”并且错误数组包含 1 个错误代码 = 10609 和消息​​“无效事务 ID”的项目

你有什么想法为什么会发生这种情况？

非常感谢！

Answer 1

要在授权后获取资金，您需要运行 DoCapture，而不是 DoAuthorization。