How to send response to accepted post from another server?

Question

Laravel

All the best! tell me, the point is that I receive data from the bank in the form of xml parsed took what I need, and now I need to send the same xml to the bank with a purchase order, I know how to do it manually)) by pressing a button)) but I need to somehow immediately in the same controller where i receive the xml from the bank send them a response, here is the controller

public function offpaysuccess(Request $request){
      if(isset($request->input('response'))){

        $response = simplexml_load_string($request->input('response'));
        $order_id = $response[0]->bank[0]->customer[0]->merchant[0]->order['order_id'];
        $reference = $response[0]->bank[0]->results[0]->payment['reference'];
        $approval_code = $response[0]->bank[0]->results[0]->payment['approval_code'];
        $amount = $response[0]->bank[0]->results[0]->payment['amount'];
        
        Offmkpays::where('offmkpay_code_tranzaction','=',$order_id)->update(['offmkpay_paysuccess'=>true]);

        $payMkCours = Offmkpays::where()->first();
        $userEmail = $payMkCours->offmkpay_user_email;
        $userName = $payMkCours->offmkpay_user_name;
        Mail::send('rus.mail.paymksuccess', ['payMkCours' => $payMkCours], function($message) use ($userName,$userEmail){
          $message->to($userEmail, $userName)->subject('Успешная запись!');
        });
//ПЫТАЮСЬ ОТПРАВИТЬ ОТВЕТ)) <--------------------------------------------------------------------------------
        $apruve = '<document><merchant id="93745451"> 
            <command type="complete"/>
            <payment reference="'.$reference.'" approval_code="'.$approval_code.'" orderid="'.$order_id.'" amount="'.$amount.'"    currency_code="398"/> 
          </merchant>
          <merchant_sign type="RSA" cert_id="c233e074"></merchant_sign>
        </document>';

        $mainXML = base64_encode($apruve);

        return Redirect::to('https://epay.kkb.kz/jsp/remote/control.jsp?'.$mainXML);
        //return redirect('https://epay.kkb.kz/jsp/remote/control.jsp')->withInput($mainXML);

      }
}

BUT they get an error
here Route::match(['get', 'post'], '/offpaysuccess','Rus\[email protected]');

Answer 1

Redirect is performed by the GET method, but do you need a post? Either curl or via file_get_contents() . In the case of curl, the encode is not needed.
in case of a get request, change

Redirect::to('https://epay.kkb.kz/jsp/remote/control.jsp?'.$mainXML);

on the

$response = file_get_contents('https://epay.kkb.kz/jsp/remote/control.jsp?'.$mainXML);