..code-block::xml

..code-block::php

In this example, the routes are loaded by calling the ``loadRoutes()`` method

of the service whose ID is ``admin_route_loader``. Your service doesn't have to

extend or implement any special class, but the called method must return a

:class:`Symfony\\Component\\Routing\\RouteCollection` object.

If you're using:ref:`autoconfigure<services-autoconfigure>`, your service should

implement the `ServiceRouterLoaderInterface` interface to be tagged automatically by

Symfony!

If you are **not using autoconfigure**, tag it manually with ``routing.route_loader``.

..note::

The routes defined using service route loaders will be automatically