I want to create a class to register my custom theme rest routes. After I wrote this piece of code I’ve noticed that the rest api will give a 500 error and axios isn’t able to get the data. I want to make a single page wordpress website by using vue to get the contents of the pages but for now I need to solve this issue. Can anyone help me? Is my code correct?

class Uheme_Rest_Routes {

  public static function init()
  {
    add_action( 'rest_api_init', array( __CLASS__, 'uheme_routes') );
  }

  public function uheme_routes()
  {
    register_rest_route(
      'uheme/v1',
      '/menu',
      array(
        'method' => 'GET',
        'callback' => array($this, '_rest_menu')
      )
    );

  }

  public function _rest_menu()
  {
    return wp_get_nav_menu_items('menu');
  }

}
Uheme_Rest_Routes::init();