Can’t get data from controller with ajax request - development

Can’t get data from controller with ajax request

Trying to get products from productController with category_id

As seen blow. Codes are basic ajax request codes, there is no complicated things. But my result is allways null.

ROUTE

Route::post('urun-listele', 'ProductController@listele');

CONTROLLER

public function listele(Request $request)
{

    $category_id = $request['category_id'];
    $urunler = Product::where('category_id', $category_id)->get();

    #var_dump($urunler);
    return json_encode([
        'urunler' => $urunler
    ], JSON_UNESCAPED_UNICODE);
}

AJAX

function urunListele(kategori_id) {

    var kapsayici = $('#product-info');

    $.ajax({
        url: 'urun-listele',
        type: "POST",
        data: {category_id: kategori_id},
        dataType: 'json',
        headers: {
            'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
        },
        success: function (data) {
            var urunler = data['urunler'];

            for (var i = 0; i < urunler.length; i++) {
                kapsayici.append('<div class="col-md-3 product-detail-item b-white br-10px"><p>' + urunler[i]['title'] + '</p></div>');
            }
        }
    });
}

As i said, can’t get any data.

var urunler = data['urunler'];

        for (var i = 0; i < urunler.length; i++) {
            kapsayici.append('<div class="col-md-3 product-detail-item b-white br-10px"><p>' + urunler[i]['title'] + '</p></div>');
        }

console.log(urunler); allways return 0 object. Where is the problem? Thanks in advance.

EDIT:

i got Cannot read property 'length' of undefined when try return $urunler;

$category_id = $request['category_id']; can’t get anything i think.
For example if i change $category_id = 5 it return [object Object],[object Object]
i have 2 object with $category_id = 5.
is problem here? $category_id = $request['category_id'];

EDIT2:

$category_id = $request->get('category_id');
    $urunler = Product::whereCategoryId($category_id)->get();

    return response()->json([
        'urunler' => $urunler
    ]);

Controller changed like this and its working right now.

from Laravel Questions and Answers https://laravelquestions.com/php/cant-get-data-from-controller-with-ajax-request/
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