使用laravel的Paypal退款金额

Question

我已经成功地用laravel实现了PayPal。我能够使用PayPal API进行支付。现在我想使用laravel实现从PayPal的退款。我不想从PayPal仪表板退款，但我想从我们的管理面板中完成，在那里管理员用户可以看到付款列表和链接，以退款给客户。成功付款后，我从PayPal获得了交易id作为响应。如果我使用交易id来退款，那么我就不能成功退款，如果我从列出了所有交易paypal仪表板中复制交易id并获得该交易的详细信息，那么我就能够成功退款。谁能告诉我如何获得交易id，我可以使用laravel进行退款。

Answer 1

我必须使用以下代码来获得实际销售id退款使用代码，而不是从paypal仪表板

$apiContext = new ApiContext(new OAuthTokenCredential(
                "<CLIENT_ID>", "<CLIENT_SCRET_KEY>")
        );
$payments = Payment::get($payment_id, $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;
$this->getRefundPayment($transaction_id);

public function getRefundPayment($transaction_id){
    $this->API_UserName  = urlencode($this->API_Username);
    $this->API_Password  = urlencode($this->API_Password);
    $this->API_Signature = urlencode($this->Signature);
    $this->version = urlencode($this->version);
    $transactionid = $transaction_id;
    $DataInArray['currencyCode'] = 'INR';
    $DataInArray['refundType'] = 'Full';
    $DataInArray['transactionID'] = $transactionid;
    $DataInArray['invoiceID'] = '';
    $DataInArray['memo'] = 'This is refund of transaction id ='.$transactionid;
    $DataInArray['amount'] = '';
    if(trim(@$DataInArray['currencyCode'])=="")
        return array("ERROR_MESSAGE"=>"Currency Code is Missing");
    if(trim(@$DataInArray['refundType'])=="")
        return array("ERROR_MESSAGE"=>"Refund Type is Missing");
    if(trim(@$DataInArray['transactionID'])=="")
        return array("ERROR_MESSAGE"=>"Transaction ID is Missing");
    $Api_request = "&TRANSACTIONID={$DataInArray['transactionID']}&REFUNDTYPE={$DataInArray['refundType']}&CURRENCYCODE={$DataInArray['currencyCode']}";
    if(trim(@$DataInArray['invoiceID'])!="")
        $Api_request = "&INVOICEID={$DataInArray['invoiceID']}";
    if(isset($DataInArray['memo']))
        $Api_request .= "&NOTE={$DataInArray['memo']}";
    if(strcasecmp($DataInArray['refundType'], 'Partial') == 0)    {
        if(!isset($DataInArray['amount']))   {
            return array("ERROR_MESSAGE"=>"For Partial Refund - It is essential to mention Amount");
        }    else     {
            $Api_request = $Api_request."&AMT={$DataInArray['amount']}";
        }
        if(!isset($DataInArray['memo']))   {
            return array("ERROR_MESSAGE"=>"For Partial Refund - It is essential to enter text for Memo");
        }
    }                      
    $curl_var = curl_init();
    curl_setopt($curl_var, CURLOPT_URL, $this->API_Endpoint);
    curl_setopt($curl_var, CURLOPT_VERBOSE, 1);
    curl_setopt($curl_var, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($curl_var, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($curl_var, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl_var, CURLOPT_POST, 1);
    $Api_request_final = "METHOD=RefundTransaction&VERSION={$this->version}&PWD={$this->API_Password}&USER={$this->API_UserName}&SIGNATURE={$this->API_Signature}$Api_request";
    curl_setopt($curl_var, CURLOPT_POSTFIELDS, $Api_request_final);
    // Get response from the server.
    $curlResponse = curl_exec($curl_var);
    if(!$curlResponse)
        return array("ERROR_MESSAGE"=>"RefundTransaction failed".curl_error($curl_var)."(".curl_errno($curl_var).")");
    // Extract the response details.
    $httpResponseAr = explode("&", $curlResponse);
    $aryResponse = array();
    foreach ($httpResponseAr as $i => $value)     {
        $tmpAr = explode("=", $value);
        if(sizeof($tmpAr) > 1)   {
            $aryResponse[$tmpAr[0]] = urldecode($tmpAr[1]);
        }
    }
    if((0 == sizeof($aryResponse)) || !array_key_exists('ACK', $aryResponse))
        return array("ERROR_MESSAGE"=>"Invalid HTTP Response for POST request ($reqStr) to {$this->API_Endpoint}");
   // var_dump($aryResponse);
    return $aryResponse;
}