# Routing Our goal is to ease the installation of the different bundles. Users should not have to dive into complicated config files to install bundles. ## A routing loader is available for all bundles A Chill bundle may rely on the Routing Loader defined in ChillMain. The loader will load `yml` or `xml` files. You simply have to add them into `chill_main` config chill_main: # ... other stuff here routing: resources: - @ChillMyBundle/Resources/config/routing.yml ### Load routes automatically But this forces users to modify config files. To avoid this, you may prepend config implementing the `PrependExtensionInterface` in the `YourBundleExtension` class. This is an example from **chill main** bundle : ```php namespace Chill\MainBundle\DependencyInjection; use Symfony\Component\DependencyInjection\ContainerBuilder; use Symfony\Component\HttpKernel\DependencyInjection\Extension; use Symfony\Component\DependencyInjection\Extension\PrependExtensionInterface; class ChillMainExtension extends Extension implements PrependExtensionInterface { public function load(array $configs, ContainerBuilder $container) { // ... } public function prepend(ContainerBuilder $container) { //add current route to chill main //this is where the resource is added automatically in the config $container->prependExtensionConfig('chill_main', array( 'routing' => array( 'resources' => array( '@ChillMainBundle/Resources/config/routing.yml' ) ) )); } } ```