如何從我的頁面獲得Paypal Expresscheckout響應？

Question

我是新來的paypal api集成，我只想知道如何從paypal expresscheckout得到迴應？我現在正在測試沙盒。

可以通過ajax向paypal發送請求嗎？我看到它在表單提交中的示例，我不知道如何以編程方式獲得響應。

請幫助我，非常感謝

伯納德

Answer 1

你只需要閱讀正在發送迴響應。這裏是使用CURL進行連接的PHP代碼示例。

<?php 

/** DoExpressCheckoutPayment NVP example; last modified 08MAY23. 
* 
* Complete an Express Checkout transaction. 
*/ 

$environment = 'sandbox'; // or 'beta-sandbox' or 'live' 

/** 
* Send HTTP POST Request 
* 
* @param string The API method name 
* @param string The POST Message fields in &name=value pair format 
* @return array Parsed HTTP Response body 
*/ 
function PPHttpPost($methodName_, $nvpStr_) { 
    global $environment; 

    // Set up your API credentials, PayPal end point, and API version. 
    $API_UserName = urlencode('my_api_username'); 
    $API_Password = urlencode('my_api_password'); 
    $API_Signature = urlencode('my_api_signature'); 
    $API_Endpoint = "https://api-3t.paypal.com/nvp"; 
    if("sandbox" === $environment || "beta-sandbox" === $environment) { 
     $API_Endpoint = "https://api-3t.$environment.paypal.com/nvp"; 
    } 
    $version = urlencode('51.0'); 

    // setting the curl parameters. 
    $ch = curl_init(); 
    curl_setopt($ch, CURLOPT_URL, $API_Endpoint); 
    curl_setopt($ch, CURLOPT_VERBOSE, 1); 

    // Set the curl parameters. 
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); 

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
    curl_setopt($ch, CURLOPT_POST, 1); 

    // Set the API operation, version, and API signature in the request. 
    $nvpreq = "METHOD=$methodName_&VERSION=$version&PWD=$API_Password&USER=$API_UserName&SIGNATURE=$API_Signature$nvpStr_"; 

    // Set the request as a POST FIELD for curl. 
    curl_setopt($ch, CURLOPT_POSTFIELDS, $nvpreq); 

    // Get response from the server. 
    $httpResponse = curl_exec($ch); 

    if(!$httpResponse) { 
     exit('$methodName_ failed: '.curl_error($ch).'('.curl_errno($ch).')'); 
    } 

    // Extract the response details. 
    $httpResponseAr = explode("&", $httpResponse); 

    $httpParsedResponseAr = array(); 
    foreach ($httpResponseAr as $i => $value) { 
     $tmpAr = explode("=", $value); 
     if(sizeof($tmpAr) > 1) { 
      $httpParsedResponseAr[$tmpAr[0]] = $tmpAr[1]; 
     } 
    } 

    if((0 == sizeof($httpParsedResponseAr)) || !array_key_exists('ACK', $httpParsedResponseAr)) { 
     exit("Invalid HTTP Response for POST request($nvpreq) to $API_Endpoint."); 
    } 

    return $httpParsedResponseAr; 
} 

/** 
* This example assumes that a token was obtained from the SetExpressCheckout API call. 
* This example also assumes that a payerID was obtained from the SetExpressCheckout API call 
* or from the GetExpressCheckoutDetails API call. 
*/ 
// Set request-specific fields. 
$payerID = urlencode("payer_id"); 
$token = urlencode("token"); 

$paymentType = urlencode("Authorization");   // or 'Sale' or 'Order' 
$paymentAmount = urlencode("payment_amount"); 
$currencyID = urlencode("USD");      // or other currency code ('GBP', 'EUR', 'JPY', 'CAD', 'AUD') 

// Add request-specific fields to the request string. 
$nvpStr = "&TOKEN=$token&PAYERID=$payerID&PAYMENTACTION=$paymentType&AMT=$paymentAmount&CURRENCYCODE=$currencyID"; 

// Execute the API operation; see the PPHttpPost function above. 
$httpParsedResponseAr = PPHttpPost('DoExpressCheckoutPayment', $nvpStr); 

if("SUCCESS" == strtoupper($httpParsedResponseAr["ACK"]) || "SUCCESSWITHWARNING" == strtoupper($httpParsedResponseAr["ACK"])) { 
    exit('Express Checkout Payment Completed Successfully: '.print_r($httpParsedResponseAr, true)); 
} else { 
    exit('DoExpressCheckoutPayment failed: ' . print_r($httpParsedResponseAr, true)); 
} 

?>