实现 Paypal Sandbox 退款时得到 Http 响应代码 400

Question

我正在尝试实现 Sandbox Paypal 支付网关退款功能。我正在使用 Laravel 5.6.12 和 Package: "paypal/rest-api-sdk-php": "^1.13"

我付款没问题。以下是支付成功后收到的回复。

{
    "id": "PAY-94141048LX592642PLLYUVMA",
    "transactions": [
        {
            "related_resources": [
                {
                    "sale": {
                        "id": "0KH341752J2209342",
                        "state": "completed",
                        "links": [
                            {
                                "href": "https://api.sandbox.paypal.com/v1/payments/sale/0KH341752J2209342",
                                "rel": "self",
                                "method": "GET"
                            },
                            {
                                "href": "https://api.sandbox.paypal.com/v1/payments/sale/0KH341752J2209342/refund",
                                "rel": "refund",
                                "method": "POST"
                            },
                            {
                                "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-94141048LX592642PLLYUVMA",
                                "rel": "parent_payment",
                                "method": "GET"
                            }
                        ],
                        "soft_descriptor": "PAYPAL *PANKAJGARGS"
                    }
                }
            ]
        }
    ]
}

从上面JSON，我取Sale_ID = 0KH341752J2209342，写了下面的代码实现退款

$refund = new Refund();
$refund->setAmount(200);
$sale = new Sale();
$sale->setId("0KH341752J2209342");
try {
    $apiContext = $this->_api_context;
    $refundedSale = $sale->refund($refund, $apiContext);
} catch (Exception $ex) {
    \Log::info($ex);
    exit(1);
}

出现以下错误。

访问 https://api.sandbox.paypal.com/v1/payments/sale/0KH341752J2209342/refund 时得到 Http 响应代码 400。

如果有什么不对的地方，请指点一下好吗？如果您需要更多信息，请告诉我。我从上面删除了一些不必要的部分 JSON 以使其简短

错误详情。

状态代码：400 响应：{"name":"MALFORMED_REQUEST","message":"Incoming JSON request does not map to API request","information_link":"developer.paypal.com/webapps/developer/docs/api/…;}PayPal\Exception\PayPalConnectionException: 访问 https://api.sandbox.paypal.com/v1/payments/sale/3FM030155Y9829603/refund

时得到 Http 响应代码 400

Answer 1

您应该添加以下捕获，以便您可以看到真正的错误消息：

} catch (PayPal\Exception\PayPalConnectionException $ex) {
echo $ex->getCode();
echo $ex->getData(); // Prints the detailed error message 
die($ex);
}

Answer 2

我在下面添加了三行

$amt = new Amount();
$amt->setTotal(10)
    ->setCurrency('INR');

在下面的代码中，现在一切正常。

$refund = new Refund();
$refund->setAmount($amt);
$sale = new Sale();
$sale->setId("0KH341752J2209342");
try {
    $apiContext = $this->_api_context;
    $refundedSale = $sale->refund($refund, $apiContext);
} catch (Exception $ex) {
    \Log::info($ex);
    exit(1);
}

实现 Paypal Sandbox 退款时得到 Http 响应代码 400

Got Http response code 400 when implementing Paypal Sandbox refund

paypal-rest-sdk

laravel-5.6