執行付款 - 貝寶REST API

Question

PayPal REST ExpressCheckout API包含兩部分： 驗證和執行。 一切正常，但執行失敗。

我下面這個示例代碼：http://paypal.github.io/PayPal-PHP-SDK/sample/doc/payments/ExecutePayment.html

我真的不理解的過程。它試圖獲取一些不存在於我的URL中的參數。何時使用返回網址？

這裏是我的HTML：

{% extends 'layout/master.twig' %} 

{% block title %} {{ parent() }}PayPal {% endblock title %} 

{% block head %} 
    <script src="https://www.paypalobjects.com/api/checkout.js"></script> 
{% endblock %} 

{% block header %} Testing PayPal {% endblock header %} 


{% block content %} 

    <div id="paypal-button"></div> 

{% endblock content %} 


{% block scripts %} 
    <script> 
     paypal.Button.render({ 

      env: 'sandbox', // Optional: specify 'production' environment 

      payment: function (resolve, reject) { 

       var CREATE_PAYMENT_URL = 'http://patch-request.app/paypal/payment/create'; 

       paypal.request.post(CREATE_PAYMENT_URL) 
        .then(function (data) { 
         resolve(data.id); 
        }) 
        .catch(function (err) { 
         reject(err); 
        }); 
      }, 

      onAuthorize: function (data) { 
       console.log(data); 
       // Note: you can display a confirmation page before executing 

       var EXECUTE_PAYMENT_URL = 'http://patch-request.app/paypal/payment/execute'; 

       paypal.request.post 
        (
        EXECUTE_PAYMENT_URL, 
         { 
          paymentID: data.paymentID, 
          payerID: data.payerID 
         } 
        ) 
        .then(function (data) { 
         /* Go to a success page */ 
         console.log('SUCCESS!!!!!!!!!'); 
         console.log(data); 
        }) 
        .catch(function (err) { 
         /* Go to an error page */ 
         console.log('ERROR!!!!!!!!!'); 
         console.log(data); 
        }); 
      } 

     }, '#paypal-button'); 
    </script> 
{% endblock scripts %} 

這裏是PHP的認證部分：

/** 
    * Initialize a payment that needs to be verified 
    * 
    * @return JSON paymentID 
    */ 
    public function authorize_payment() 
    { 
     $payer = new Payer(); 
     $payer->setPaymentMethod("paypal"); 

     $item1 = new Item(); 
     $item1->setName('Ground Coffee 40 oz') 
      ->setCurrency('USD') 
      ->setQuantity(1) 
      ->setSku("123123")// Similar to `item_number` in Classic API 
      ->setPrice(7.5); 
     $item2 = new Item(); 
     $item2->setName('Granola bars') 
      ->setCurrency('USD') 
      ->setQuantity(5) 
      ->setSku("321321")// Similar to `item_number` in Classic API 
      ->setPrice(2); 

     $itemList = new ItemList(); 
     $itemList->setItems([$item1, $item2]); 

     $details = new Details(); 
     $details->setShipping(1.2) 
      ->setTax(1.3) 
      ->setSubtotal(17.50); 

     $amount = new Amount(); 
     $amount->setCurrency("USD") 
      ->setTotal(20) 
      ->setDetails($details); 

     $transaction = new Transaction(); 
     $transaction->setAmount($amount) 
      ->setItemList($itemList) 
      ->setDescription("Payment description") 
      ->setInvoiceNumber(uniqid()); 

//  $baseUrl = getBaseUrl(); 
     $baseUrl = "http://patch-request.app"; 
     $redirectUrls = new RedirectUrls(); 
     $redirectUrls->setReturnUrl("$baseUrl/blog") 
      ->setCancelUrl("$baseUrl/blog/cleardb"); 

     $payment = new Payment(); 
     $payment->setIntent("sale") 
      ->setPayer($payer) 
      ->setRedirectUrls($redirectUrls) 
      ->setTransactions([$transaction]); 

     $request = clone $payment; 

     try 
     { 
      $payment->create($this->apiContext); //$payment is a JSON 
     } 
     catch (Exception $ex) 
     { 
      echo 'Sth went wrong'; 
     } 

     $approvalUrl = $payment->getApprovalLink(); 
//  d($approvalUrl); 

//  ResultPrinter::printResult("Created Payment Using PayPal. Please visit the URL to Approve.", "Payment", 
//   "<a href='$approvalUrl' >$approvalUrl</a>", $request, $payment); 

//  return json_encode(['paymentID' => $payment->id]); 
     return $payment; 
    } 

這裏是PHP的執行部分失敗：

/** 
    * Execute the authorized payment 
    */ 
    public function execute_payment() 
    { 
     ChromePhp::log('outside'); 
     ChromePhp::log($_GET); 

//  if (isset($_GET['success']) && $_GET['success'] == 'true') 
//  { 
      ChromePhp::log('inside'); 
      $paymentId = $_GET['paymentId']; 
      $payment = Payment::get($paymentId, $this->apiContext); 

      $execution = new PaymentExecution(); 
      $execution->setPayerId($_GET['PayerID']); 

      $transaction = new Transaction(); 
      $amount = new Amount(); 
      $details = new Details(); 

      $details->setShipping(2.2) 
       ->setTax(1.3) 
       ->setSubtotal(17.50); 

      $amount->setCurrency('USD'); 
      $amount->setTotal(21); 
      $amount->setDetails($details); 
      $transaction->setAmount($amount); 

      $execution->addTransaction($transaction); 

      try 
      { 
       $result = $payment->execute($execution, $this->apiContext); 
       ChromePhp::log($result); 

       try 
       { 
        // Could not get payment 
        $payment = Payment::get($paymentId, $this->apiContext); 
        ChromePhp::log($payment); 
       } 
       catch (Exception $ex) 
       { 
        exit(1); 
       } 
      } 
      catch (Exception $ex) 
      { 
       // Could not execute payment 
       exit(1); 
      } 

      return $payment; 
//  } 
//  else 
//  { 
      //User cancelled the approval 
//   exit; 
//  } 
    } 

Answer 1

他們網站上的文檔非常可怕。他們給出的示例Javascript將發送POST請求中的這兩個變量，並且PHP-SDK示例查找GET請求。他們只是要求人們遇到問題。

您可以看到下面的代碼段在POST請求中發送了paymentID和payerID。

onAuthorize: function (data) { 
console.log(data); 
// Note: you can display a confirmation page before executing 

var EXECUTE_PAYMENT_URL = 'http://patch-request.app/paypal/payment/execute'; 

paypal.request.post 
    (
    EXECUTE_PAYMENT_URL, 
     { 
      paymentID: data.paymentID, // this object is sent with the above URL 
      payerID: data.payerID .  // as a payload with the POST request 
     } 
    ) 
    .then(function (data) { 
     /* Go to a success page */ 
     console.log('SUCCESS!!!!!!!!!'); 
     console.log(data); 
    }) 
    .catch(function (err) { 
     /* Go to an error page */ 
     console.log('ERROR!!!!!!!!!'); 
     console.log(data); 
    }); 

}

嘗試調整在PHP的例子來此的任何引用$_POST如下：

$paymentId = $_GET['paymentId']; 

到：

$paymentId = $_POST['paymentId'];