SDK - Refund

Request parameters

Parameter Name	Type	Required(Y or N)	Sign(Y or N)	Parameter Description
pay_memberid	String	Y	Y	Merchant ID
transaction_id	String	Y	Y	Transaction order number
pay_orderid	String	Y	Y	Merchant order number
currency	String	Y	N	Order currency
pay_amount	String	Y	N	The total amount of orders
refund_amount	String	Y	N	Order refund amount(supports partial refund)
refund_reason	String	Y	N	Reason for order refund
pay_md5sign	String	Y	N	Please see MD5 signature field format

Refund return parameters

Parameter Name	Type	Required(Y or N)	Parameter Description
memberid	String	Y	Merchant ID
transaction_id	String	Y	Transaction order number
orderid	String	Y	Merchant order number
currency	String	Y	Order currency
amount	String	Y	The total amount of orders
refund_orderid	String	N	Refund Order ID (When the refund application is successful, a response will be returned.)
refund_amount	String	Y	Order refund amount (supports partial refund)
refund_reason	String	Y	Reason for order refund
returncode	String	Y	"00": success
refund_message	String	Y	`V0000:OK
sign	String	Y	sign

require_once 'vendor/autoload.php';
    use Jpay\PaymentSDK\JpayPaymentSDK;
    $sdk = new JpayPaymentSDK(
        'your_merchant_id',
        'your_secret_key',
        'virtual',     // Write according to the payment method for which you want a refund. It doesn't matter if you make a mistake.
        'true'                     // true or false, define true(dev environment)
    );
//.The request parameters should be passed in according to the above requirements.
// There are mandatory and optional parameters to be passed in,
// depending on the document specifications.
      $paymentData = [
        'pay_orderid' => 'your pay orderid',
        'transaction_id' => 'transaction id',
        'pay_amount' => '100.00',
        'currency' => 'USD',
        'refund_amount' => '100.00',
        'refund_reason' => 'refund',

    ];

    $result = $sdk->refund($paymentData);