我正在研究集成到PayPal的REST API中的PHP应用程序。我的交易处理正确，并将事务ID保存到MySQL数据库中。我现在正在尝试退还销售，但不能让它停止给出"传入的JSON请求不映射到API请求"错误。有人对如何工作有任何建议吗？
我在代码中留下了一些有关其结果的评论。我感到有些失去了使这一工作的方向。任何帮助将不胜感激。
我一直在此处关注文档：https://developer.paypal.com/docs/integration/direct/payments/refund-payment/
我可能正在努力适应该要求。
我发现了这一点代码：https://github.com/paypal/paypal-php-sdk/blob/master/master/sample/payments/refundcapture.php
，但它"需要"一棵文件树，对于简单的退款请求来说似乎有些过多。
<?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 PayPalApiAddress;
use PayPalApiAmount;
use PayPalApiDetails;
use PayPalApiExecutePayment;
use PayPalApiFundingInstrument;
use PayPalApiItem;
use PayPalApiItemList;
use PayPalApiPayer;
use PayPalApiPayment;
use PayPalApiPaymentCard;
use PayPalApiPaymentExecution;
use PayPalApiTransaction;
use PayPalApiCapture;
use PayPalApiRefund;
use PayPalApiRefundRequest;
use PayPalApiSale;
$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 PayPalRestApiContext(
new PayPalAuthOAuthTokenCredential(
'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;
}
}
更新3/8/2017 @ 12:23 PM
我似乎已经取得了"一些"进度，尽管我宽松地使用了这个术语。国家正在返回，因为"已完成"，但退款实际上并未发生。它也没有像样品所证明的那样返回父付款ID。对此有什么想法吗？我仍在努力使它工作。
这是我目前从PayPal获得的结果：
object(PayPalApiRefund)#3 (1) {
["_propMap":"PayPalCommonPayPalModel":private]=>
array(5) {
["id"]=>
string(17) "123456789123456789"
["create_time"]=>
string(20) "2017-03-06T20:56:32Z"
["state"]=>
string(9) "completed"
["amount"]=>
object(PayPalApiAmount)#9 (1) {
["_propMap":"PayPalCommonPayPalModel":private]=>
array(3) {
["total"]=>
string(4) "0.02"
["currency"]=>
string(3) "USD"
["details"]=>
object(PayPalApiDetails)#13 (1) {
["_propMap":"PayPalCommonPayPalModel":private]=>
array(1) {
["subtotal"]=>
string(4) "0.02"
}
}
}
}
["links"]=>
array(1) {
[0]=>
object(PayPalApiLinks)#17 (1) {
["_propMap":"PayPalCommonPayPalModel":private]=>
array(3) {
["href"]=>
string(59) "https://api.paypal.com/v1/payments/refund/123456789123456789"
["rel"]=>
string(4) "self"
["method"]=>
string(3) "GET"
}
}
}
}
}
以下是当前返回上面响应的代码...
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 PayPalApiAddress;
use PayPalApiAmount;
use PayPalApiDetails;
use PayPalApiExecutePayment;
use PayPalApiFundingInstrument;
use PayPalApiItem;
use PayPalApiItemList;
use PayPalApiPayer;
use PayPalApiPayment;
use PayPalApiPaymentCard;
use PayPalApiPaymentExecution;
use PayPalApiTransaction;
use PayPalApiCapture;
use PayPalApiRefund;
use PayPalApiRefundRequest;
use PayPalApiSale;
$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-123456789012345678901234
$FinalTotal = $refR['orders_order_total']; // order total
// paypal credentials
$apiContext = new PayPalRestApiContext(
new PayPalAuthOAuthTokenCredential(
'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);
}
}
任何帮助都将不胜感激。
文档：https：//developer.paypal.com/docs/api/quickstart/refund-payment/#set-the-set-the-the-the-the-the-the-refund-object
进行付款和退款使用： PayPal/Rest-Api-SDK-PHP
首先，当您付款时，它必须为" sale "。
[...]
$payment = new Payment();
$payment->setIntent('sale')
->setPayer($payer)
->setRedirectUrls($redirect_urls)
->setTransactions(array($transaction));
[...]
PayPal将以" paymectionId "的额度退货付款，您需要保存它。
退款示例。
//Previosly saved payments ID.
$paymentId = 'PI_Fv54vfd45';
//Create API connection
$apiContext = new ApiContext(new OAuthTokenCredential($paypalConf['client_id'], $paypalConf['secret']));
$apiContext->setConfig($paypalConf['settings']);
//Get sale from payment
$paypalPayment = new Payment();
$paymentInfo = $paypalPayment->get($paymentId, $apiContext);
$transactions = $paymentInfo->getTransactions();
if(empty($transactions[0])){
return false;
}
$relatedResources = $transactions[0]->getRelatedResources();
if(empty($relatedResources[0])){
return false;
}
$sale = $relatedResources[0]->getSale();
$refund = new Refund();
$amt = (new Amount())->setTotal(100)->setCurrency('EUR');
$refund->setAmount($amt);
$refund->setReason('Sale refund');
$refundedSale = $sale->refund($refund, $apiContext);
return ($refundedSale->getState() === 'completed');
我相信问题是，当您提交退款时，还必须设置API上下文。第一个上下文建立了与API的连接，然后您设置了销售ID。我相信您必须为该销售ID设置API上下文，但我不是100％。
我设法通过它来努力。以下是成功退还通过其余API下达的PayPal订单的代码。
<?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 PayPalApiAddress;
use PayPalApiAmount;
use PayPalApiDetails;
use PayPalApiExecutePayment;
use PayPalApiFundingInstrument;
use PayPalApiItem;
use PayPalApiItemList;
use PayPalApiPayer;
use PayPalApiPayment;
use PayPalApiPaymentCard;
use PayPalApiPaymentExecution;
use PayPalApiTransaction;
use PayPalApiCapture;
use PayPalApiRefund;
use PayPalApiRefundRequest;
use PayPalApiSale;
$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 = $res->message; // ex. 'The requested transaction has already been fully refunded.'
}
}
?>
在接受的答案之后，对于那些想知道如何进行部分退款的人，而不是：
curl_setopt($ch, CURLOPT_POSTFIELDS, '{}');
您应添加以下参数：
curl_setopt($ch, CURLOPT_POSTFIELDS, '{
"amount": {
"value": "12.34",
"currency_code": "EUR"
}
}');