Call to undefined function csrf_token() LUMEN

I am using Lumen 8.2.3.

i am trying to submit form with ajax.

i am trying to send token and i have error *Call to undefined function csrf_token()*

i added this in app.php:

$app->routeMiddleware([
    'csrf' => 'Laravel\Lumen\Http\Middleware\VerifyCsrfToken'
]);

$app->middleware([
    Illuminate\Cookie\Middleware\EncryptCookies::class,
    Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
    Illuminate\Session\Middleware\StartSession::class,
    Illuminate\View\Middleware\ShareErrorsFromSession::class,
    Illuminate\Session\Middleware\StartSession::class,
    App\Http\Middleware\VerifyCsrfToken::class
]);

Also i tried with session to get token


 <meta name="csrf-token" content="{{ app('request')->session()->get('_token') }}">

It is working but on the second ajax post request trows CSRF Token Mismatch

MyView with Ajax

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <meta name="csrf-token" content="{{ app('request')->session()->get('_token') }}">
    <title>Document</title>
</head>
<body>
    <form action="/test" method="post">
        <input type="text" class="form_element" id="name" name="test">
        <input type="text" class="form_element" id="email" name="email">
        <input type="text" class="form_element" id="product" name="product">
        <input type="text" class="form_element" id="price" name="price">
        <button type="button" class="kita">Posalji</button>
    </form>

    <script>
    
    $(".form_element").on("focusout", function(){
        let do_query = true;
        
        setTimeout(function(){
            $(".form_element").each(function(){ 
                if($(this).is(":focus")){
                    do_query = false;
                    return false;
                }
            });

            if(do_query){
                let getallyourvalshere = $('#name').val();
                let email = $('#email').val();
                let product = $('#product').val();
                let price = $('#price').val();

                $.ajaxSetup({
                    headers: {
                        'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
                    }
                });

                $.ajax({
                    method: 'post',
                    url: '/testAjax',
                    data: {
                        value: getallyourvalshere,
                        email: email,
                        product: product,
                        price: price
                    },
                    success: function(response) {
                        console.log(response);
                    },
                    error: function(xhr) {
                        console.log(xhr);
                    }
                });
            }
        }, 200);
    });
    </script>
</body>
</html>

Thanks for help