Apple Pay 令牌的交易金额不正确

Question

Apple Pay 令牌包含错误的交易金额信息。例如，如果交易金额为 1.10 美元，在 iOS 设备上，Apple Pay 屏幕静止显示正确的金额，但 paymentToken returns 110 解密时

我使用这个库使用我自己的 public-私钥对解密 Apple Pay 令牌

https://github.com/sidimansourjs/applepay-token

我的示例代码

class ViewController: UIViewController {
...
 @IBAction func payBtn(_ sender: UIButton) {
        do {
            let paymentItem = PKPaymentSummaryItem.init(label: "Test item", amount: NSDecimalNumber(value: 1.10))
            let paymentNetworks = [PKPaymentNetwork.amex, .discover, .masterCard, .visa]

            if PKPaymentAuthorizationViewController.canMakePayments(usingNetworks: paymentNetworks) {

                let request = PKPaymentRequest()
                request.currencyCode = "SGD" // 1
                request.countryCode = "SG" // 2
                request.merchantIdentifier = "merchant.com.xxxxx" // 3
                request.merchantCapabilities = PKMerchantCapability.capability3DS // 4
                request.supportedNetworks = paymentNetworks // 5
                request.paymentSummaryItems = [paymentItem] // 6

                guard let paymentVC = PKPaymentAuthorizationViewController(paymentRequest: request) else {
                    displayDefaultAlert(title: "Error", message: "Unable to present Apple Pay authorization.")
                    return
                }

                paymentVC.delegate = self
                self.present(paymentVC, animated: true, completion: nil)

            } else {
                displayDefaultAlert(title: "Error", message: "Unable to make Apple Pay transaction.")
            }
        } catch {
            print(error.localizedDescription)
        }

    }
}

extension ViewController: PKPaymentAuthorizationViewControllerDelegate {
    func paymentAuthorizationViewControllerDidFinish(_ controller: PKPaymentAuthorizationViewController) {
        dismiss(animated: true, completion: nil)
    }
    func paymentAuthorizationViewController(_ controller: PKPaymentAuthorizationViewController, didAuthorizePayment payment: PKPayment, handler completion: @escaping (PKPaymentAuthorizationResult) -> Void) {

        let token = String(data: payment.token.paymentData, encoding: .utf8)
        let utf8str = token!.data(using: .utf8)

        if let base64Encoded = utf8str?.base64EncodedString()
        {
            print("Encoded:  \(base64Encoded)")

            //Send token to backend server to decrypt
        }
    }
}

我在尝试向 Adyen（支付网关）发出支付请求时发现了这一点。请求必须同时包含 amount 字段和 paymentToken 字段，但从未成功，因为 amount 和 paymentToken 中的金额不匹配。然后我尝试 amount 110 而不是 1.10 然后请求成功，但具有讽刺意味的是，在 Adyen 仪表板中它仍然理解交易金额为 $1.10

我预计 Apple Pay 令牌中的 transactionAmount 为 1.10

请帮助解释为什么设备上和令牌中显示的 Apple Pay 金额存在差异

Answer 1

找到@Don 建议的答案新加坡元 SGD 的最小单位是分，即一美元的 1/100。因此，我需要通过乘以 100 将美元金额转换为美分整数。然后，在发送给 Adyen

时使用此值

Apple Pay 令牌的交易金额不正确

Apple Pay token's transaction amount is incorrect

payment-gateway

ios

swift

applepay