此付款请求必须由发件人 - PayPal 授权

Question

好的，这是我所做的：

1. 已创建付款请求

2. 设置付款选项 - https://developer.paypal.com/webapps/developer/docs/classic/api/adaptive-payments/SetPaymentOptions_API_Operation/

3. 执行付款 - "此付款请求必须由发件人授权"。我已经不知道为什么我无法执行付款。据我了解，一旦我成功执行付款，我将获得一个 payKey，我将使用它将用户重定向到PayPal。https://developer.paypal.com/webapps/developer/docs/classic/api/adaptive-payments/ExecutePayment_API_Operation/

附上我使用的源代码。这些值都是硬编码的。我已经尽力研究类似的问题，这对我来说毫无意义，因为它与我的理解相矛盾。一些答案指出，在您执行付款之前，买方需要先批准付款。

我只想在到达PayPal登录页面时查看所有项目的详细信息。

//1. Obtain endpoint. For live, no need sandbox?
$endPoint = "https://svcs.sandbox.paypal.com/AdaptivePayments/Pay";
//2. Format the HTTP headers needed to make the call.
$appID = "xxx"; //Sandbox test AppID:
$username = "xxx;
$password = "xxx";
$signature = "xxx";
$paypalHeaders = array(
    "X-PAYPAL-SECURITY-USERID :" . $username,
    "X-PAYPAL-SECURITY-PASSWORD :" . $password,
    "X-PAYPAL-SECURITY-SIGNATURE :" . $signature,
    "X-PAYPAL-APPLICATION-ID :" . $appID,
    "X-PAYPAL-REQUEST-DATA-FORMAT : JSON",
    "X-PAYPAL-RESPONSE-DATA-FORMAT : JSON"
);

$data = array();
$data['actionType'] = "CREATE"; //PAY
$data['currencyCode'] = "SGD";
$receiver['amount'] = $orderTotal;
$receiver['email'] = $receiverEmail;
$data['receiverList'] = array();
$data['receiverList']['receiver'][] = $receiver;
$data['returnUrl'] = $returnURL;
$data['cancelUrl'] = $cancleURL;
$requestEnvelope = array();
$requestEnvelope['errorLanguage'] = "en_US";
$data['requestEnvelope'] = $requestEnvelope;
//I omitted the POST call
//print_r($returnedData);
$payKey = $returnedData->payKey;  
$paymentStatus = $returnedData->paymentExecStatus;

/* *设置付款方式 */

$endPoint = "https://svcs.sandbox.paypal.com/AdaptivePayments/SetPaymentOptions";
//paymentDetailsData
$paymentDetailsData = array();
//set payKey
echo "payKey: " . $payKey;
$paymentDetailsData['payKey'] = $payKey;
//displayOptions
$displayOptions['businessName'] = "My Business";
$paymentDetailsData['displayOptions'] = $displayOptions;
//senderOptions
$senderOptions = array();
$senderOptions['requireShippingAddressSelection'] =  true; //set to true if courier is chosen
$senderOptions['shippingAddress']['addresseeName'] = "Ny Name";
$senderOptions['shippingAddress']['street1'] = "Address 1Avenue 3";
$senderOptions['shippingAddress']['street2'] = "#xx-112";
$senderOptions['shippingAddress']['city'] = "Singapore";
$senderOptions['shippingAddress']['state'] = "Singapore";
$senderOptions['shippingAddress']['zip'] = "123456";
$senderOptions['shippingAddress']['country'] = "Singapore";
$paymentDetailsData['senderOptions'] = $senderOptions;
//item
$item = array();
$item['name'] = "Korea";
$item['itemPrice'] = 11;
//there is still price, and itemcount
//invoiceData
$invoiceData = array();
$invoiceData['item'] = $item;
//receiverOptions
$receiverOptions = array();
$receiverOptions['description'] = "Product description.";
$receiverOptions['invoiceData'] = $invoiceData;
$paypalEmail = "[e-mail]"; //I may need to change this
$receiver['email'] = $paypalEmail;
$receiverOptions['receiver'] = $receiver;
$paymentDetailsData['receiverOptions'] = $receiverOptions;
//requestEnvelope. I have set the request envelope above. It is the same. Can still be used.
$paymentDetailsData['requestEnvelope'] = $requestEnvelope;
makePaypalCall($endPoint, $paypalHeaders, $paymentDetailsData);
/*
 * Get payment options. I can see the result of get payment options correctly,
 */
echo "GETTING PAYMENT OPTIONS";
$endPoint = "https://svcs.sandbox.paypal.com/AdaptivePayments/GetPaymentOptions";
$getPaymentData['payKey'] = $payKey;
$getPaymentData['requestEnvelope'] = $requestEnvelope;
makePaypalCall($endPoint, $paypalHeaders, $getPaymentData);
$endPoint = "https://svcs.sandbox.paypal.com/AdaptivePayments/ExecutePayment";

/*
 * ExecutePayment. Ok, I get the error here. This payment request must be authorized by the sender
 */
$executePaymentData = array();
echo "paykey: " . $payKey;
$executePaymentData['payKey'] = $payKey;
//$executePaymentData['actionType'] = "PAY";
$executePaymentData['requestEnvelope'] = $requestEnvelope;

Answer 1

我希望我理解正确。

对我来说，您似乎跳过了用户需要授权付款的步骤。执行付费（创建）操作时，应会看到PayPal响应中获取重定向URL。您需要将用户重定向到此 URL，以便他们授权PayPal付款。

一旦他们批准了付款，您就可以执行付款了。

您的步骤需要更改为：

1. 创建付款请求
2. 设置付款选项
3. 重定向至PayPal（来自PayRequest响应的重定向URL）进行用户授权
4. 如果获得授权，执行付款

PayPal Pay API 操作页面上对此的提示

URL to redirect the sender's browser to after the sender has logged into PayPal and approved a payment; it is always required but only used if a payment requires explicit approval

在步骤 3 之后，用户将返回到您在 $data['returnUrl'] = $returnURL; 中提供的 URL

Answer 2

我正在使用延迟链式付款，并且经常出现此错误"此付款请求必须由发件人授权"。实际上，这是由于逻辑上的一个小错误。

错误的程序（@步骤3）

1. 成功生成支付密钥
2. 将其保存到数据库

3. 由于某种原因刷新页面，导致生成新的 payKey（这个新的 payKey 不会更新到数据库）

   payRequest = pay();
   .....
   if(empty(db_record)) {
     .....
     db_record->payKey = payRequest->payKey;
     db_record->save();
   }
   

4. 使用新的支付密钥付款（即发件人批准的付款）

5. 尝试使用数据库中的 payKey 执行付款（这确实是旧的。该支付密钥未用于付款）

溶液

使用上次付款密钥更新数据库，该数据库用于通过获得发件人的批准进行付款

第 3 步应该像

    if(empty(db_record) || is_expired(db_record->payKey)) {
      payRequest = pay();
      .....
      .....
      db_record->payKey = payRequest->payKey;
      db_record->save();
    }