如何使用Stripe API确认Apple Pay付款

Question

所以几天后，我终于能够在今天早上创建代币、支付方法和支付意向设置。现在我对如何使用Apple Pay实际确认付款感到困惑，在非Apple Pay结账流程中，我有这个功能：

func paymentContext(_ paymentContext: STPPaymentContext, didCreatePaymentResult paymentResult: STPPaymentResult, completion: @escaping STPPaymentStatusBlock) {
guard let paymentIntentClientSecret = paymentIntentClientSecret else {
return;
}
// Collect card details


let paymentIntentParams = STPPaymentIntentParams(clientSecret: paymentIntentClientSecret)
paymentIntentParams.configure(with: paymentResult)


// Submit the payment
let paymentHandler = STPPaymentHandler.shared()
paymentHandler.confirmPayment(paymentIntentParams, with: self) { (status, paymentIntent, error) in
switch (status) {
case .failed:
self.displayFailureAlert(title: "Payment Failed", message: "There was an error trying to complete the payment, please try again later.")
self.paymentInProgress = false
break
case .canceled:
self.displayCancelledAlert(title: "Payment Canceled", message: "The payment has been cancelled.")
self.paymentInProgress = false
break
case .succeeded:
self.displaySuccessAlert(title: "Payment Succeeded", message: "The payment was successful!")
self.paymentInProgress = false
break
@unknown default:
fatalError()
break
}
}
}

这很管用。STPApplePayContext中的参数与STPPaymentContext有点不同，我不能为它使用完全相同的功能

func applePayContext(_ context: STPApplePayContext, didCreatePaymentMethod paymentMethod: STPPaymentMethod, paymentInformation: PKPayment, completion: @escaping STPIntentClientSecretCompletionBlock) {
guard let paymentIntentClientSecret = paymentIntentClientSecret else {
return;
}
let paymentIntentParams = STPPaymentIntentParams(clientSecret: paymentIntentClientSecret)


let error = NSError()
completion(paymentIntentClientSecret, error)

}

到目前为止，这就是我所拥有的，我尝试过做STPAPIClient.shared.confirmPaymentIntent(with:)，但没有任何改变，有什么建议吗？

Answer 1

您将在成功处理程序中获得带有retrievePaymentIntent的付款响应，并在调用此函数后获得所有与付款相关的信息，还可以使用Strip API获取带有交易id的数据。

func applePayContext(_ context: STPApplePayContext, didCompleteWith status: STPPaymentStatus, error: Error?) {
switch status {
case .success:
// Payment succeeded, show a receipt view
context.apiClient.retrievePaymentIntent(withClientSecret: clientSecret) { (paymentIntent, error) in

print(paymentIntent?.allResponseFields ?? "")
}
break
case .error:
// Payment failed, show the error
break
case .userCancellation:
// User cancelled the payment
break
@unknown default:
fatalError()
}
}

Answer 2

基本上，您需要按照Stripe文档第7步开始的说明进行操作。

具体来说，你需要在服务器上创建一个支付意向，将其客户端机密传递给你的应用程序，然后实现如下委托方法：

extension CheckoutViewController {
func applePayContext(_ context: STPApplePayContext, didCreatePaymentMethod paymentMethod: STPPaymentMethod, paymentInformation: PKPayment, completion: @escaping STPIntentClientSecretCompletionBlock) {
let clientSecret = ... // Retrieve the PaymentIntent client secret from your backend (see Server-side step above)
// Call the completion block with the client secret or an error
completion(clientSecret, error);
}
func applePayContext(_ context: STPApplePayContext, didCompleteWith status: STPPaymentStatus, error: Error?) {
switch status {
case .success:
// Payment succeeded, show a receipt view
break
case .error:
// Payment failed, show the error
break
case .userCancellation:
// User cancelled the payment
break
@unknown default:
fatalError()
}
}
}

另请参阅STPApplePayContext的文档，它提供了简化的高级指令：

1. 使用描述付款请求(金额、行项目、所需运输信息等(的PKPaymentRequest初始化此类
2. 调用presentalApplePayOnViewController:complete:以呈现Apple Pay表单并开始支付过程3(可选(：如果您需要响应用户更改其发货信息/发货方式，请实现可选的委托方法
3. 当用户点击"购买"时，此类使用您在applyPayContext:didCreatePaymentMethod:complete:delegate方法中提供的PaymentIntent来完成支付
4. 付款完成/出现错误并且表单被驳回后，此类会在applyPayContext:didCompleteWithStatus:delegate方法中通知您