条纹上的“无此类付款意图：（空）”

Question

我最近将Stripe iOS SDK和API从2019-05-16版本更新为最新版本。以前，我的代码在Charges API上运行良好，但现在PaymentIntent出现了问题。

我使用Stripe Connect和自定义帐户，同时创建单独的费用和转账。

问题是，当我尝试进行初始付款时，我没有收到这样的付款意图：（null）错误。但实际上，正在创建付款意图。付款“不完整”和“PaymentIntent status：requires_payment_method”。

另一方面，如果我手动替换从MyAPIClient.swift/createCustomerKey方法传递到CheckoutViewController.swift/paymentContext（didCreatePaymentResult）方法的（clientSecret），用另一个来自先前不完整收费的clientSecret密钥，它都可以正常工作并且付款成功。

我可以确认clientSecret密钥是否正确地从我的服务器（Firebase Cloud函数）传递到客户端，然后从MyAPIClient传递到CheckoutViewController——请参阅下面代码中的print（）。我还仔细检查了前端和后端的API键。

以下是我的后端代码：

const stripe = require('stripe')(functions.config().stripe.token);

exports.createPaymentIntentForStripeAccount = functions.https.onRequest((req, res) => {

    const uid = req.body.uid;
    const amount = req.body.amount;
    const currency = req.body.currency;
    const customer_id = req.body.customer_id;
    const transfer_group = req.body.transfer_group;

    return stripe.paymentIntents.create({
        amount: amount,
        currency: currency,
        customer: customer_id,
        transfer_group: transfer_group,
        capture_method: "manual",
    }).then(function(paymentIntent) {
        const clientSecret = paymentIntent.client_secret;
        res.status(200).json(clientSecret);
    });

});

客户端：

// MyAPIClient

    func createPaymentIntent(amount: Int, bookingID: String, completion: @escaping ((Result<String>) -> Void)) {

        let url = self.baseURL.appendingPathComponent("createPaymentIntentForStripeAccount")
        let transfer_group = bookingID.components(separatedBy: "/").last!
        let params: [String: Any] = [
            "uid": UserService.currentUserProfile!.uid,
            "customer_id": UserService.currentUserProfile!.stripe_customer_id!,
            "amount": amount,
            "transfer_group": transfer_group,
            "currency": "USD"
            ]

        Alamofire.request(url, method: .post, parameters: params)
            .validate(statusCode: 200..<300)
            .responseString { responseString in
                switch responseString.result {
                case .success(let clientSecret):
                    print(clientSecret)
                    completion(.success(clientSecret))
                case .failure(let error):
                    completion(.failure(error))
                }
        }
    }


// CheckoutViewController

    func paymentContext(_ paymentContext: STPPaymentContext, didCreatePaymentResult paymentResult: STPPaymentResult, completion: @escaping STPPaymentStatusBlock) {

        MyAPIClient.sharedClient.createPaymentIntent(amount: self.paymentContext.paymentAmount, bookingID: self.bookingRef.url) { result in
            switch result {
            case .success(let clientSecret):
                let paymentIntentParams = STPPaymentIntentParams(clientSecret: clientSecret)
                paymentIntentParams.configure(with: paymentResult)
                print(clientSecret)
                STPPaymentHandler.shared().confirmPayment(withParams: paymentIntentParams, authenticationContext: paymentContext) { status, paymentIntent, error in
                    switch status {
                    case .succeeded:
                        completion(.success, nil)
                    case .failed:
                        completion(.error, error)
                    case .canceled:
                        completion(.userCancellation, nil)
                    @unknown default:
                        completion(.error, nil)
                    }
                }
            case .failure(let error):
                print("Failed to create a Payment Intent: \(error)")
                completion(.error, error)
                break
            }
        }
    }

任何建议或反馈都将受到欢迎和不胜感激。

非常感谢。

Answer 1

上面的代码在双引号中产生clientSecret，导致一个看起来像“pi_xxx_secret_xxx”的键，这当然不起作用。

我应该在服务器端解析JSON后转义额外的引号，或者在客户端删除它们。例如：

completion(.success(clientSecret.replacingOccurrences(of: "\"", with: ""))