How to setup another modules with new route files?

for new module 

PHP Code:

<?php namespace Modules\App\Config;

use CodeIgniter\Config\BaseConfig;

class ModuleAppConfig extends BaseConfig
{
    /*
  *---------------------------------------------------------------
  *  x directory
  *---------------------------------------------------------------

  */
    public $xDirectory = __DIR__ . '/../../../public/upload/x';
} 


Code:

<?php namespace Modules\App\Config;


use Config\Services as BaseService;

class Services extends BaseService
{
    //--------------------------------------------------------------------



}

route.php 

Code:

<?php

/*
* modules\App route.file.
*/

$routes->group('api', ['namespace' => 'Modules\App\Controllers'], function ($routes) {

    $routes->resource('overView');
    $routes->resource('graph');

});

Enlightenment  Is  Freedom