Modal laravel dengan ajax

Button

<label>Request</label>
<button class="btn btn-outline-primary col-md-12" data-toggle="modal"
data-target="#modalRequest" id="addRequest">Request</button>
<div class="invalid-feedback">
Input Request !
</div>
</div>

Modal

<div class="modal-body">
<p>Tambahkan Request disini</p>
<div class="form-group">
<textarea id="notes"></textarea>
</div>
</div>
<div class="modal-footer bg-whitesmoke br">
<button type="button" class="btn btn-outline-danger" data-dismiss="modal">Cancel</button>
<button type="button" onclick="sendRequest()" class="btn btn-outline-primary">Save changes</button>

Ajax

function sendRequest() {
        var requestes = tinyMCE.get('notes').getContent();
        $.ajaxSetup({
                headers: {
                    'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
                }
            }),
            $.ajax({
                url: '{{ route('editRequest', ['id' => request()->route('id')]) }}',
                method: "post",
                dataType: 'JSON',
                data: {
                    request: requestes,
                },
                success: function (respons) {
                    $('#lihatRequest').empty();
                    $('#lihatRequest').append(requestes);
                    if (respons.ping == 200) {
                        iziToast.success({
                            title: 'Berhasil!',
                            message: 'berhasil memasukkan Request',
                            position: 'bottomRight'
                        });
                        $('#modalRequest').modal('hide');
                    } else {
                        iziToast.info({
                            title: 'gagal!',
                            message: 'gagal memasukkan Request',
                            position: 'bottomRight'
                        });
                    }
                }
            })
    }

web.php

Route::post('{id}/edit-request', 'OrderController@editRequest')->name('editRequest');
Route::get('{id}/view-request', 'OrderController@viewRequest')->name('viewRequest');

Controller

public function editRequest(Request $request, $id) {
        $user = $request->user();
        $order = Orders::where('order_id', $id)->first();
        $insertRequest = Orders::where('order_id', $id)->update(['request' => $request->input('request')]);
        if($insertRequest) {
        $users = User::all();
        Notification::send($users, new addedRequest($user, $order));

        $response['ping'] = 200;
        } else {
        $response['ping'] = 500;
        }
        return json_encode($response);
    }
    public function viewRequest($id) {
        $viewRequest = Orders::where('order_id', $id)->get();

        return response()->json($viewRequest);
    }