Markette\Gopay\Service\PreAuthorizedPaymentService::payPreAuthorizedInline PHP Метод

    public function payPreAuthorizedInline(PreAuthorizedPayment $payment, $channel, $callback)
    {
        $paymentSessionId = $this->buildPreAuthorizedPayment($payment, $channel);
        $response = ["url" => GopayConfig::fullNewIntegrationURL() . '/' . $paymentSessionId, "signature" => $this->createSignature($paymentSessionId)];
        call_user_func_array($callback, [$paymentSessionId]);
        return $response;
    }