How to Include External Routing Resources

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Read the updated version of this page for Symfony 7.3 (the current stable version).

Simple applications can define all their routes in a single configuration file - usually app/config/routing.yml (see Routing). However, in most applications it's common to import routes definitions from different resources: PHP annotations in controller files, YAML, XML or PHP files stored in some directory, etc.

This can be done by importing routing resources from the main routing file:

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# app/config/routing.yml
app_file:
    # loads routes from the given routing file stored in some bundle
    resource: '@AcmeBundle/Resources/config/routing.yml'

app_annotations:
    # loads routes from the PHP annotations of the controllers found in that directory
    resource: '@AppBundle/Controller/'
    type:     annotation

app_directory:
    # loads routes from the YAML, XML or PHP files found in that directory
    resource: '../legacy/routing/'
    type:     directory

app_bundle:
    # loads routes from the YAML, XML or PHP files found in some bundle directory
    resource: '@AcmeOtherBundle/Resources/config/routing/'
    type:     directory

Note

When importing resources, the key (e.g. app_file) is the name of collection. Just be sure that it's unique per file so no other lines override it.

Prefixing the URLs of Imported Routes

You can also choose to provide a "prefix" for the imported routes. For example, to prefix all application routes with /site (e.g./site/blog/{slug} instead of /blog/{slug}):

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use Symfony\Component\Routing\Annotation\Route;

/**
 * @Route("/site")
 */
class DefaultController
{
    // ...
}

The path of each route being loaded from the new routing resource will now be prefixed with the string /site.

Prefixing the Names of Imported Routes

3.4

The feature to prefix route names was introduced in Symfony 3.4.

You also have the possibility to prefix all route names defined in a controller class with the name attribute of the @Route annotation:

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use Symfony\Component\Routing\Annotation\Route;

/**
 * @Route(name="blog_")
 */
class BlogController extends Controller
{
    /**
     * @Route("/blog", name="index")
     */
    public function indexAction()
    {
        // ...
    }

    /**
     * @Route("/blog/posts/{slug}", name="post")
     */
    public function showAction(Post $post)
    {
        // ...
    }
}

In this example, the names of the routes will be blog_index and blog_post.

Adding a Host Requirement to Imported Routes

You can set the host regex on imported routes. For more information, see How to Match a Route Based on the Host.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.
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