Symfony 5 – A problem with the form to registrate a credit card with MangoPay

I’m trying to register a credit card with MangoPay.

I’ve installed the mangopay/php-sdk-v2 package.

To register a credit card, it needs three steps.

1. Create a token of the card
2. Post card info (using a url created by the token) that will render a string that start with data=
3. Add the registered card to the MangoPay user

// ProfilController.php 

   /**
     * @Route("/payment/{id}", name="payment")
     * * @param int $id
     */
    public function payment(Request $request, ApiUser $ApiUser, $id): Response
    {           
            $returnUrl = "";

            $user = $this->userRepository->findOneBy(['id' => $id]);
            $userId = $user->getIdMangopay();
            $registration = $ApiUser->Registration($userId);
            
            if($request->request->count() > 0){
                $payment = new PaymentMethod(); 
                $payment->setName($request->request->get('name'));
                $payment->setCardNumber($request->request->get('cardNumber'));
        
                $entityManager = $this->getDoctrine()->getManager();
                $entityManager->persist($payment);
                $entityManager->flush();

                $registrationCard = $ApiUser->RegistrationCard($registration, $request);

                $returnUrl = 'http' . (isset($_SERVER['HTTPS']) ? 's' : '') . '://' . $_SERVER['HTTP_HOST'];
                $returnUrl .= '/profil';
            }
            
            return $this->render('home/payment.html.twig', [
                    'CardRegistrationUrl' => $registration->CardRegistrationURL,
                    'Data' => $registration->PreregistrationData,
                    'AccessKeyRef' => $registration->AccessKey,
                    'returnUrl' => $returnUrl,
            ]);
    }

The Registration and ResitrationCard functions come from the ApiUser file:

// ApiUser.php

    public function Registration($UserId)
    {
        $CardRegistration = new MangoPayCardRegistration();
        $CardRegistration->UserId = $UserId;
        $CardRegistration->Currency = "EUR";
        $CardRegistration->CardType = "CB_VISA_MASTERCARD";
        $Result = $this->mangoPayApi->CardRegistrations->Create($CardRegistration);
      $this->registrationInfo = $Result;
      $this->CardRegistrationUrl = $Result->CardRegistrationURL;

      return $Result;
    }

    public function RegistrationCard($CardInfo)
    {
      $cardRegister = $this->mangoPayApi->CardRegistrations->Get($CardInfo->Id);

      $cardRegister->RegistrationData = $_SERVER['QUERY'];
      
      $updatedCardRegister  = $this->mangoPayApi->CardRegistrations->Update($cardRegister);
    
      return $Result;
    }

I’m able to create the token of the card and get the data= string, but the problem is that I cannot do the last step.

It seems that I cannot enter into the if statement, so it doesn’t register the card on the database and I cannot update the card information (3rd step).

The returnUrl, I can simply put it outside of the if statement to make it works, but I want to change it only if the form is valid.

How can I fix the statement? Why doesn’t it enter into the if?