PHP PayPal REST APIを使用して払い戻しを行いますか？

Question

私はPayPalのREST APIに統合されたPHPアプリケーションを開発中です。私はトランザクションを正しく処理し、トランザクションIDをMySQLデータベースに保存しています。私は現在販売を払い戻ししようとしていますが、「着信JSON要求がAPIリクエストにマップされていません」というエラーを返すことを止めることはできません。誰かがこれを得る方法についてのアドバイスを持っていますか？

私はコードの中に、その結​​果に関するコメントを残しました。私はこの作業をする方向で少し失われている気がします。どんな助けもありがとう。

私はここにあるドキュメントを、次のしてきた： https://developer.paypal.com/docs/integration/direct/payments/refund-payment/

私はPHPにその要求を適応に苦労することができます。

私はこのコードのビットが見つかりました：

https://github.com/paypal/PayPal-PHP-SDK/blob/master/sample/payments/RefundCapture.php

しかし、それは簡単な返金要求のためにビット過剰に思われるファイルのツリーを「必要」されます。

<?php 

require_once(dirname(__FILE__) . '/paypalSDK/autoload.php'); // require paypal files 
require_once(dirname(__FILE__) . '/paypalSDK/paypal/rest-api-sdk-php/sample/common.php'); // require paypal files 
// call required stuff 
use PayPal\Api\Address; 
use PayPal\Api\Amount; 
use PayPal\Api\Details; 
use PayPal\Api\ExecutePayment; 
use PayPal\Api\FundingInstrument; 
use PayPal\Api\Item; 
use PayPal\Api\ItemList; 
use PayPal\Api\Payer; 
use PayPal\Api\Payment; 
use PayPal\Api\PaymentCard; 
use PayPal\Api\PaymentExecution; 
use PayPal\Api\Transaction; 
use PayPal\Api\Capture; 
use PayPal\Api\Refund; 
use PayPal\Api\RefundRequest; 
use PayPal\Api\Sale; 

$orderID = $_GET['order_id']; // order ID we wish to refund 
// pull the details from the database so we have the transaction refund ID 
$refQ = mysql_query("SELECT * FROM orders WHERE orders_ID = $orderID", $db); 
$refC = mysql_num_rows($refQ); 
if(!empty($refC)){ 

    $refR = mysql_fetch_assoc($refQ); 
    $refNumber = $refR['orders_transaction_ref']; // paypal transaction ID 
    $FinalTotal = $refR['orders_order_total']; // order total 
    // paypal credentials 
    $apiContext = new \PayPal\Rest\ApiContext(
     new \PayPal\Auth\OAuthTokenCredential(
      'abc',  
      'xyz' 
     ) 
    ); 
    $apiContext->setConfig(array('mode' => 'live',)); // live use, not sandbox 

    //$amount = new Amount(); // commenting these out seemingly has no effect 
    //$amount->setCurrency("USD") // commenting these out seemingly has no effect 
    // ->setTotal($FinalTotal); // commenting these out seemingly has no effect 

    $refund = new Refund(); // if I comment these 2 lines out, I get "refund cannot be null" 
    $refund->setAmount($FinalTotal); // if I comment these 2 lines out, I get "refund cannot be null" 

    $sale = new Capture(); // if I comment these 2 lines out, I get "Call to a member function refund() on a non-object" 
    $sale->setId($refNumber); // if I comment these 2 lines out, I get "Call to a member function refund() on a non-object" 

    $refundRequest = new RefundRequest(); // commenting these out seemingly has no effect 
    $refundRequest->setAmount($FinalTotal); // commenting these out seemingly has no effect 

    //$captureRefund = $sale->refundCapturedPayment($refundRequest, $apiContext); // failure, error 400 

    try { 
     $sale->refund($refund, $apiContext); 
     //$sale->refundCapturedPayment($refund, $apiContext); // failure, error 400 
    } catch (Exception $ex) { 
     echo '<pre style="font-size:16px;">'; 
      var_dump($ex); 
     echo '</pre>'; 
     exit(); 
     die; 
    } 
} 

アップデート2017年3月8日12:23

@私は緩く用語を使用しても、私は、一見、 'いくつかの' 進歩を遂げています。州は「完了」と戻っていますが、払い戻しは実際には起こっていません。また、サンプルのデモのように、親のお支払いIDは返されません。これに関するアイデア？私はまだこれを働かせようとしています。

これは私が現在、ペイパルから取得していた結果である：

以下

object(PayPal\Api\Refund)#3 (1) { 
    ["_propMap":"PayPal\Common\PayPalModel":private]=> 
    array(5) { 
    ["id"]=> 
    string(17) "123456789123456789" 
    ["create_time"]=> 
    string(20) "2017-03-06T20:56:32Z" 
    ["state"]=> 
    string(9) "completed" 
    ["amount"]=> 
    object(PayPal\Api\Amount)#9 (1) { 
     ["_propMap":"PayPal\Common\PayPalModel":private]=> 
     array(3) { 
     ["total"]=> 
     string(4) "0.02" 
     ["currency"]=> 
     string(3) "USD" 
     ["details"]=> 
     object(PayPal\Api\Details)#13 (1) { 
      ["_propMap":"PayPal\Common\PayPalModel":private]=> 
      array(1) { 
      ["subtotal"]=> 
      string(4) "0.02" 
      } 
     } 
     } 
    } 
    ["links"]=> 
    array(1) { 
     [0]=> 
     object(PayPal\Api\Links)#17 (1) { 
     ["_propMap":"PayPal\Common\PayPalModel":private]=> 
     array(3) { 
      ["href"]=> 
      string(59) "https://api.paypal.com/v1/payments/refund/123456789123456789" 
      ["rel"]=> 
      string(4) "self" 
      ["method"]=> 
      string(3) "GET" 
     } 
     } 
    } 
    } 
} 

は現在、上記の応答を返すコードです...

require_once(dirname(__FILE__) . '/paypalSDK/autoload.php'); // require paypal files 
require_once(dirname(__FILE__) . '/paypalSDK/paypal/rest-api-sdk-php/sample/bootstrap.php'); // require paypal files 
require_once(dirname(__FILE__) . '/paypalSDK/paypal/rest-api-sdk-php/sample/common.php'); // require paypal files 
// call required stuff 
use PayPal\Api\Address; 
use PayPal\Api\Amount; 
use PayPal\Api\Details; 
use PayPal\Api\ExecutePayment; 
use PayPal\Api\FundingInstrument; 
use PayPal\Api\Item; 
use PayPal\Api\ItemList; 
use PayPal\Api\Payer; 
use PayPal\Api\Payment; 
use PayPal\Api\PaymentCard; 
use PayPal\Api\PaymentExecution; 
use PayPal\Api\Transaction; 
use PayPal\Api\Capture; 
use PayPal\Api\Refund; 
use PayPal\Api\RefundRequest; 
use PayPal\Api\Sale; 

$orderID = $_GET['order_id']; // internal order ID we wish to refund 

// pull the details from database so we have the PayPal transction ID 
$refQ = mysql_query("SELECT * FROM orders WHERE orders_ID = $orderID", $db); 
$refC = mysql_num_rows($refQ); 
if(!empty($refC)){ 

    $refR = mysql_fetch_assoc($refQ); 
    $refNumber = $refR['orders_transaction_ref']; // PayPal transaction ID 

    // attempted 'PAY-' ID, results in "Requested resource ID was not found." 
    // $refNumber = $refR['orders_payment_ref']; // ex. PAY-123456789

    $FinalTotal = $refR['orders_order_total']; // order total 

    // paypal credentials 
    $apiContext = new \PayPal\Rest\ApiContext(
     new \PayPal\Auth\OAuthTokenCredential(
      'abc',  
      'xyz' 
     ) 
    ); 
    $apiContext->setConfig(array('mode' => 'live',)); // live use, not sandbox 

    //$amount = new Amount(); // commenting these out seemingly has no effect 
    //$amount->setCurrency("USD") // commenting these out seemingly has no effect 
    // ->setTotal($FinalTotal); // commenting these out seemingly has no effect 

    /* 
    // attempted code 
    // ### Refund object 
    $refund = new Refund(); 
    //$refund = new RefundRequest(); 
    $refund->setAmount($FinalTotal); 
    */ 

    $refund = new Refund(); 
    $refund->setId($refNumber); 
    $refund->setSaleId($refNumber); 
    $refund->setAmount($FinalTotal); 
    $refund->setReason("Testing refund code"); 
    //$refund->get($refNumber, $apiContext); 

    // Attempted code, didn't work 
    // https://stackoverflow.com/questions/18927591/paypal-api-how-to-get-sale-id-and-refund-payment-made-via-paypal 
    // Fatal error: Uncaught exception 'InvalidArgumentException' with message 'paymentId cannot be null' in /home/cartridgeworkspl/public_html/cfx_controllers/paypalSDK/paypal/rest-api-sdk-php/lib/PayPal/Validation/ArgumentValidator.php:25 Stack trace: #0 
    // $payments = Payment::get($refNumber, $apiContext); 
    // $payments->getTransactions(); 
    // $obj = $payments->toJSON();//I wanted to look into the object 
    // $paypal_obj = json_decode($obj);//I wanted to look into the object 
    // $transaction_id = $paypal_obj->transactions[0]->related_resources[0]->sale->id; 
    // $this->refund($transaction_id);//Call your custom refund method 

    try { 
     //var_dump($refund); 
     $refundResponse = Refund::get($refNumber, $apiContext); 
     echo '<pre>'; 
      var_dump($refundResponse); 
     echo '</pre>'; 
     echo $refundResponse->getState(); 
     echo $refundResponse->getReasonCode(); 
    } catch (Exception $ex) { 
     // NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY 
     ResultPrinter::printError("Get Payment", "Payment", null, null, $ex); 
     exit(1); 
    } 

} 

すべてのヘルプは最高にいただければ幸いです。

Answer 1

私はそれを通して私の方法を働かせました。以下は、REST APIを使用してPayPal注文をうまく払い戻すコードです。

<?php 
    require_once(dirname(__FILE__) . '/paypalSDK/autoload.php'); // require paypal files 
    require_once(dirname(__FILE__) . '/paypalSDK/paypal/rest-api-sdk-php/sample/bootstrap.php'); // require paypal files 
    require_once(dirname(__FILE__) . '/paypalSDK/paypal/rest-api-sdk-php/sample/common.php'); // require paypal files 

    // call required PayPal functionality 
    use PayPal\Api\Address; 
    use PayPal\Api\Amount; 
    use PayPal\Api\Details; 
    use PayPal\Api\ExecutePayment; 
    use PayPal\Api\FundingInstrument; 
    use PayPal\Api\Item; 
    use PayPal\Api\ItemList; 
    use PayPal\Api\Payer; 
    use PayPal\Api\Payment; 
    use PayPal\Api\PaymentCard; 
    use PayPal\Api\PaymentExecution; 
    use PayPal\Api\Transaction; 
    use PayPal\Api\Capture; 
    use PayPal\Api\Refund; 
    use PayPal\Api\RefundRequest; 
    use PayPal\Api\Sale; 

    $orderID = $_GET['order_id']; // internal order ID we wish to refund 

    // pull the details from database so we have the PayPal transction ID 
    $refQ = mysql_query("SELECT * FROM orders WHERE orders_ID = $orderID", $db); 
    $refC = mysql_num_rows($refQ); 
    if(!empty($refC)){ 

     $refR = mysql_fetch_assoc($refQ); // array of order data 

     $refNumber = $refR['orders_transaction_ref']; // PayPal transaction ID 
     $FinalTotal = $refR['orders_order_total']; // order total 

     // get PayPal access token via cURL 
     $ch = curl_init(); 
     curl_setopt($ch, CURLOPT_URL, "https://api.paypal.com/v1/oauth2/token"); 
     curl_setopt($ch, CURLOPT_HTTPHEADER, array(
      'Accept: application/json', 
      'Accept-Language: en_US' 
     )); 
     curl_setopt($ch, CURLOPT_USERPWD, 'USER:PASS'); 
     curl_setopt($ch, CURLOPT_POSTFIELDS, 'grant_type=client_credentials'); 
     curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 
     curl_setopt($ch, CURLOPT_POST, true); 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
     $output = curl_exec($ch); 
     $json = json_decode($output); 
     $token = $json->access_token; // this is our PayPal access token 

     // refund PayPal sale via cURL 
     $header = Array(
      "Content-Type: application/json", 
      "Authorization: Bearer $token", 
     ); 
     $ch = curl_init("https://api.paypal.com/v1/payments/sale/$refNumber/refund"); 
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
     curl_setopt($ch, CURLOPT_POST, true); 
     curl_setopt($ch, CURLOPT_POSTFIELDS, '{}'); 
     curl_setopt($ch, CURLOPT_HTTPHEADER, $header); 
     $res = json_decode(curl_exec($ch)); 
     $code = curl_getinfo($ch, CURLINFO_HTTP_CODE); 
     curl_close($ch); 

     // if res has a state, retrieve it 
     if(isset($res->state)){ 
      $state = $res->state; 
     }else{ 
      $state = NULL; // otherwise, set to NULL 
     } 

     // if we have a state in the response... 
     if($state == 'completed'){ 
      // the refund was successful 
     }else{ 
      // the refund failed 
      $errorName = $res->name; // ex. 'Transaction Refused.' 
      $errorReason = $res->message; // ex. 'The requested transaction has already been fully refunded.' 
     } 
    } 
?> 

Answer 2

払い戻しを送信する際には、APIコンテキストも設定する必要があると私は考えています。最初のコンテキストはAPIへの接続を確立し、次に販売IDを設定します。その販売IDのAPIコンテキストを設定する必要がありますが、私は100％ではないと思います。