List with query params in laravel api controller

list_with_query_params.php

<?php
public function index(Request $request)
    {
        UserLog::insertLog('Listed cities', URL::full());

        $cities = AddressCity::query();

        $provinceCode = $request->provinceCode;

        if ($provinceCode) {
            $cities = $cities->where('province_code', $provinceCode);
        }

        return response()->json([
            'cities' => $cities->paginate(10)
        ]);
    }
?>