lib/vendor/omnipay/paypal/src/Message/RestRefundRequest.php

<?php
namespace Omnipay\PayPal\Message;
 
class RestRefundRequest extends AbstractRestRequest
{
    public function getData()
    {
        $this->validate('transactionReference');
 
        if ($this->getAmount() > 0) {
            return array(
                'amount' => array(
                    'currency' => $this->getCurrency(),
                    'total' => $this->getAmount(),
                ),
                'description' => $this->getDescription(),
            );
        } else {
            return new \stdClass();
        }
    }
 
    public function getEndpoint()
    {
        return parent::getEndpoint() . '/payments/sale/' . $this->getTransactionReference() . '/refund';
    }
}