ldc-crm/app/Http/Controllers/Api/V2/ApiController.php

<?php

namespace App\Http\Controllers\Api\V2;

use App\Http\Controllers\Controller;
use Illuminate\Http\JsonResponse;

class ApiController extends Controller
{
    /**
     * Just returns HTTP 200 response.
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function ping(): JsonResponse
    {
        return response()->json();
    }
}