پرداخت با فرم چند مرحله ای با ajax

سلام دوستان

@ali.bayat @hesammousavi @Alimotreb

من یه فررم برای ثبت نام دارم جند مرحله ای می باشد که به صورت تصویر زیر است

من می خوام بعد از ثبت نام کاربر پرداخت شو انجام بدهد

protected $MerchantID = 'f83cc956-f59f-11e6-889a-005056a205be';

public function payment(Request $request)
{
    $this->validate(request() , [
        'register_id' => 'required'
    ]);

    $user = User::findOrFail($request->register_id);

    $price = 100;

    $Description = 'توضیحات تراکنش تستی'; // Required
    $Email = $user->email; // Optional
    $CallbackURL = 'http://localhost:8000/marketing/payment/checker'; // Required

    $client = new SoapClient('https://www.zarinpal.com/pg/services/WebGate/wsdl', ['encoding' => 'UTF-8']);

    $result = $client->PaymentRequest(
        [
            'MerchantID' => $this->MerchantID,
            'Amount' => $price,
            'Description' => $Description,
            'Email' => $Email,
            'CallbackURL' => $CallbackURL,
        ]
    );

    //Redirect to URL You can do it also by creating a form
    if ($result->Status == 100) {

        $user->payments()->create([
            'resnumber' => $result->Authority,
            'price' => $price,
            'register_id' => Input::get('register_id'),
        ]);

        return redirect('https://www.zarinpal.com/pg/StartPay/'.$result->Authority);
    } else {
        echo 'ERR: ' . $result->Status;
    }
}

public function checker()
{
    $Authority = request('Authority');

    $payment = Payment::whereResnumber($Authority)->firstOrFail();
    $register_id = User::findOrFail($payment->register_id);

    if (request('Status') == 'OK') {
        $client = new SoapClient('https://www.zarinpal.com/pg/services/WebGate/wsdl', ['encoding' => 'UTF-8']);

        $result = $client->PaymentVerification(
            [
                'MerchantID' => $this->MerchantID,
                'Authority' => $Authority,
                'Amount' => $payment->price,
            ]
        );

        if ($result->Status == 100) {
            if($this->AddUserForOrder($payment, $register_id)) {
                alert()->success('عملیات مورد نظر با موفقیت انجام شد','با تشکر');
                return redirect()->route('home');
            }
        } else {
            echo 'Transaction failed. Status:'.$result->Status;
        }
    } else {
        echo 'Transaction canceled by user';
    }

}

protected function AddUserForOrder($payment, $register)
{
    $payment->update([
        'payment' => 1
    ]);

    Order::create([
        'user_id' => auth()->id(),
        'register_id' => $register->id,
    ]);

    return true;
}