.. index:: single: Routing
When your application receives a request, it executes a
:doc:`controller action </controller>` to generate the response. The routing
configuration defines which action to run for each incoming URL. It also
provides other useful features, like generating SEO-friendly URLs (e.g.
/read/intro-to-symfony instead of index.php?article_id=57).
Routes can be configured in YAML, XML, PHP or using annotations. All formats provide the same features and performance, so choose your favorite. :doc:`Symfony recommends annotations </best_practices/controllers>` because it's convenient to put the route and controller in the same place instead of dealing with multiple files.
If you choose annotations, run this command once in your application to add support for them:
$ composer require annotations
Suppose you want to define a route for the /blog URL in your application:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
/**
* @Route("/blog", name="blog_list")
*/
public function list()
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
blog_list:
path: /blog
# the controller value has the format 'controller_class::method_name'
controller: App\Controller\BlogController::list
# if the action is implemented as the __invoke() method of the
# controller class, you can skip the '::method_name' part:
# controller: App\Controller\BlogController
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<!-- the controller value has the format 'controller_class::method_name' -->
<route id="blog_list" path="/blog"
controller="App\Controller\BlogController::list"/>
<!-- if the action is implemented as the __invoke() method of the
controller class, you can skip the '::method_name' part:
controller="App\Controller\BlogController"/> -->
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('blog_list', '/blog')
// the controller value has the format [controller_class, method_name]
->controller([BlogController::class, 'list'])
// if the action is implemented as the __invoke() method of the
// controller class, you can skip the ', method_name]' part:
// ->controller([BlogController::class])
;
};
This configuration defines a route called blog_list that matches when the
user requests the /blog URL. When the match occurs, the application runs
the list() method of the BlogController class.
Note
The query string of a URL is not considered when matching routes. In this
example, URLs like /blog?foo=bar and /blog?foo=bar&bar=foo will
also match the blog_list route.
The route name (blog_list) is not important for now, but it will be essential later when
:ref:`generating URLs <routing-generating-urls>`. You only have to keep in mind
that each route name must be unique in the application.
By default, routes match any HTTP verb (GET, POST, PUT, etc.)
Use the methods option to restrict the verbs each route should respond to:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/BlogApiController.php
namespace App\Controller;
// ...
class BlogApiController extends AbstractController
{
/**
* @Route("/api/posts/{id}", methods={"GET","HEAD"})
*/
public function show(int $id)
{
// ... return a JSON response with the post
}
/**
* @Route("/api/posts/{id}", methods={"PUT"})
*/
public function edit(int $id)
{
// ... edit a post
}
}
.. code-block:: yaml
# config/routes.yaml
api_post_show:
path: /api/posts/{id}
controller: App\Controller\BlogApiController::show
methods: GET|HEAD
api_post_edit:
path: /api/posts/{id}
controller: App\Controller\BlogApiController::edit
methods: PUT
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="api_post_show" path="/api/posts/{id}"
controller="App\Controller\BlogApiController::show"
methods="GET|HEAD"/>
<route id="api_post_edit" path="/api/posts/{id}"
controller="App\Controller\BlogApiController::edit"
methods="PUT"/>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogApiController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('api_post_show', '/api/posts/{id}')
->controller([BlogApiController::class, 'show'])
->methods(['GET', 'HEAD'])
;
$routes->add('api_post_edit', '/api/posts/{id}')
->controller([BlogApiController::class, 'edit'])
->methods(['PUT'])
;
};
Tip
HTML forms only support GET and POST methods. If you're calling a
route with a different method from an HTML form, add a hidden field called
_method with the method to use (e.g. <input type="hidden" name="_method" value="PUT"/>).
If you create your forms with :doc:`Symfony Forms </forms>` this is done
automatically for you.
Use the condition option if you need some route to match based on some
arbitrary matching logic:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/DefaultController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class DefaultController extends AbstractController
{
/**
* @Route(
* "/contact",
* name="contact",
* condition="context.getMethod() in ['GET', 'HEAD'] and request.headers.get('User-Agent') matches '/firefox/i'"
* )
*
* expressions can also include config parameters:
* condition: "request.headers.get('User-Agent') matches '%app.allowed_browsers%'"
*/
public function contact()
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
contact:
path: /contact
controller: 'App\Controller\DefaultController::contact'
condition: "context.getMethod() in ['GET', 'HEAD'] and request.headers.get('User-Agent') matches '/firefox/i'"
# expressions can also include config parameters:
# condition: "request.headers.get('User-Agent') matches '%app.allowed_browsers%'"
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="contact" path="/contact" controller="App\Controller\DefaultController::contact">
<condition>context.getMethod() in ['GET', 'HEAD'] and request.headers.get('User-Agent') matches '/firefox/i'</condition>
<!-- expressions can also include config parameters: -->
<!-- <condition>request.headers.get('User-Agent') matches '%app.allowed_browsers%'</condition> -->
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\DefaultController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('contact', '')
->controller([DefaultController::class, 'contact'])
->condition('context.getMethod() in ["GET", "HEAD"] and request.headers.get("User-Agent") matches "/firefox/i"')
// expressions can also include config parameters:
// 'request.headers.get("User-Agent") matches "%app.allowed_browsers%"'
;
};
The value of the condition option is any valid
:doc:`ExpressionLanguage expression </components/expression_language/syntax>`
and can use any of these variables created by Symfony:
context- An instance of :class:`Symfony\\Component\\Routing\\RequestContext`, which holds the most fundamental information about the route being matched.
request- The :ref:`Symfony Request <component-http-foundation-request>` object that represents the current request.
Behind the scenes, expressions are compiled down to raw PHP. Because of this,
using the condition key causes no extra overhead beyond the time it takes
for the underlying PHP to execute.
Caution!
Conditions are not taken into account when generating URLs (which is explained later in this article).
As your application grows, you'll eventually have a lot of routes. Symfony
includes some commands to help you debug routing issues. First, the debug:router
command lists all your application routes in the same order in which Symfony
evaluates them:
$ php bin/console debug:router
---------------- ------- ------- ----- --------------------------------------------
Name Method Scheme Host Path
---------------- ------- ------- ----- --------------------------------------------
homepage ANY ANY ANY /
contact GET ANY ANY /contact
contact_process POST ANY ANY /contact
article_show ANY ANY ANY /articles/{_locale}/{year}/{title}.{_format}
blog ANY ANY ANY /blog/{page}
blog_show ANY ANY ANY /blog/{slug}
---------------- ------- ------- ----- --------------------------------------------
Pass the name (or part of the name) of some route to this argument to print the route details:
$ php bin/console debug:router app_lucky_number
+-------------+---------------------------------------------------------+
| Property | Value |
+-------------+---------------------------------------------------------+
| Route Name | app_lucky_number |
| Path | /lucky/number/{max} |
| ... | ... |
| Options | compiler_class: Symfony\Component\Routing\RouteCompiler |
| | utf8: true |
+-------------+---------------------------------------------------------+
The other command is called router:match and it shows which route will match
the given URL. It's useful to find out why some URL is not executing the
controller action that you expect:
$ php bin/console router:match /lucky/number/8
[OK] Route "app_lucky_number" matches
The previous examples defined routes where the URL never changes (e.g. /blog).
However, it's common to define routes where some parts are variable. For example,
the URL to display some blog post will probably include the title or slug
(e.g. /blog/my-first-post or /blog/all-about-symfony).
In Symfony routes, variable parts are wrapped in { ... } and they must have
a unique name. For example, the route to display the blog post contents is
defined as /blog/{slug}:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
// ...
/**
* @Route("/blog/{slug}", name="blog_show")
*/
public function show(string $slug)
{
// $slug will equal the dynamic part of the URL
// e.g. at /blog/yay-routing, then $slug='yay-routing'
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
blog_show:
path: /blog/{slug}
controller: App\Controller\BlogController::show
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="blog_show" path="/blog/{slug}"
controller="App\Controller\BlogController::show"/>
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('blog_show', '/blog/{slug}')
->controller([BlogController::class, 'show'])
;
};
The name of the variable part ({slug} in this example) is used to create a
PHP variable where that route content is stored and passed to the controller.
If a user visits the /blog/my-first-post URL, Symfony executes the show()
method in the BlogController class and passes a $slug = 'my-first-post'
argument to the show() method.
Routes can define any number of parameters, but each of them can only be used
once on each route (e.g. /blog/posts-about-{category}/page/{pageNumber}).
Imagine that your application has a blog_show route (URL: /blog/{slug})
and a blog_list route (URL: /blog/{page}). Given that route parameters
accept any value, there's no way to differentiate both routes.
If the user requests /blog/my-first-post, both routes will match and Symfony
will use the route which was defined first. To fix this, add some validation to
the {page} parameter using the requirements option:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
/**
* @Route("/blog/{page}", name="blog_list", requirements={"page"="\d+"})
*/
public function list(int $page)
{
// ...
}
/**
* @Route("/blog/{slug}", name="blog_show")
*/
public function show($slug)
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
blog_list:
path: /blog/{page}
controller: App\Controller\BlogController::list
requirements:
page: '\d+'
blog_show:
path: /blog/{slug}
controller: App\Controller\BlogController::show
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="blog_list" path="/blog/{page}" controller="App\Controller\BlogController::list">
<requirement key="page">\d+</requirement>
</route>
<route id="blog_show" path="/blog/{slug}"
controller="App\Controller\BlogController::show"/>
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('blog_list', '/blog/{page}')
->controller([BlogController::class, 'list'])
->requirements(['page' => '\d+'])
;
$routes->add('blog_show', '/blog/{slug}')
->controller([BlogController::class, 'show'])
;
// ...
};
The requirements option defines the PHP regular expressions that route
parameters must match for the entire route to match. In this example, \d+ is
a regular expression that matches a digit of any length. Now:
| URL | Route | Parameters |
|---|---|---|
/blog/2 |
blog_list |
$page = 2 |
/blog/my-first-post |
blog_show |
$slug = my-first-post |
Tip
Route requirements (and route paths too) can include :ref:`container parameters <configuration-parameters>`, which is useful to define complex regular expressions once and reuse them in multiple routes.
Tip
Parameters also support PCRE Unicode properties, which are escape
sequences that match generic character types. For example, \p{Lu}
matches any uppercase character in any language, \p{Greek} matches any
Greek character, etc.
Note
When using regular expressions in route parameters, you can set the utf8
route option to true to make any . character match any UTF-8
characters instead of just a single byte.
If you prefer, requirements can be inlined in each parameter using the syntax
{parameter_name<requirements>}. This feature makes configuration more
concise, but it can decrease route readability when requirements are complex:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
/**
* @Route("/blog/{page<\d+>}", name="blog_list")
*/
public function list(int $page)
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
blog_list:
path: /blog/{page<\d+>}
controller: App\Controller\BlogController::list
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="blog_list" path="/blog/{page<\d+>}"
controller="App\Controller\BlogController::list"/>
<!-- ... -->
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('blog_list', '/blog/{page<\d+>}')
->controller([BlogController::class, 'list'])
;
// ...
};
In the previous example, the URL of blog_list is /blog/{page}. If users
visit /blog/1, it will match. But if they visit /blog, it will not
match. As soon as you add a parameter to a route, it must have a value.
You can make blog_list once again match when the user visits /blog by
adding a default value for the {page} parameter. When using annotations,
default values are defined in the arguments of the controller action. In the
other configuration formats they are defined with the defaults option:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
/**
* @Route("/blog/{page}", name="blog_list", requirements={"page"="\d+"})
*/
public function list(int $page = 1)
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
blog_list:
path: /blog/{page}
controller: App\Controller\BlogController::list
defaults:
page: 1
requirements:
page: '\d+'
blog_show:
# ...
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="blog_list" path="/blog/{page}" controller="App\Controller\BlogController::list">
<default key="page">1</default>
<requirement key="page">\d+</requirement>
</route>
<!-- ... -->
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('blog_list', '/blog/{page}')
->controller([BlogController::class, 'list'])
->defaults(['page' => 1])
->requirements(['page' => '\d+'])
;
};
Now, when the user visits /blog, the blog_list route will match and
$page will default to a value of 1.
Caution!
You can have more than one optional parameter (e.g. /blog/{slug}/{page}),
but everything after an optional parameter must be optional. For example,
/{page}/blog is a valid path, but page will always be required
(i.e. /blog will not match this route).
Note
Routes with optional parameters at the end will not match on requests
with a trailing slash (i.e. /blog/ will not match, /blog will match).
If you want to always include some default value in the generated URL (for
example to force the generation of /blog/1 instead of /blog in the
previous example) add the ! character before the parameter name: /blog/{!page}
As it happens with requirements, default values can also be inlined in each
parameter using the syntax {parameter_name?default_value}. This feature
is compatible with inlined requirements, so you can inline both in a single
parameter:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
/**
* @Route("/blog/{page<\d+>?1}", name="blog_list")
*/
public function list(int $page)
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
blog_list:
path: /blog/{page<\d+>?1}
controller: App\Controller\BlogController::list
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="blog_list" path="/blog/{page <\d+>?1}"
controller="App\Controller\BlogController::list"/>
<!-- ... -->
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('blog_list', '/blog/{page<\d+>?1}')
->controller([BlogController::class, 'list'])
;
};
Tip
To give a null default value to any parameter, add nothing after the
? character (e.g. /blog/{page?}).
A common routing need is to convert the value stored in some parameter (e.g. an integer acting as the user ID) into another value (e.g. the object that represents the user). This feature is called "param converter" and is only available when using annotations to define routes.
In case you didn't run this command before, run it now to add support for annotations and "param converters":
$ composer require annotations
Now, keep the previous route configuration, but change the arguments of the
controller action. Instead of string $slug, add BlogPost $post:
// src/Controller/BlogController.php
namespace App\Controller;
use App\Entity\BlogPost;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
// ...
/**
* @Route("/blog/{slug}", name="blog_show")
*/
public function show(BlogPost $post)
{
// $post is the object whose slug matches the routing parameter
// ...
}
}
If your controller arguments include type-hints for objects (BlogPost in
this case), the "param converter" makes a database request to find the object
using the request parameters (slug in this case). If no object is found,
Symfony generates a 404 response automatically.
Read the full param converter documentation to learn about the converters provided by Symfony and how to configure them.
In addition to your own parameters, routes can include any of the following special parameters created by Symfony:
_controller- This parameter is used to determine which controller and action is executed when the route is matched.
_format- The matched value is used to set the "request format" of the
Requestobject. This is used for such things as setting theContent-Typeof the response (e.g. ajsonformat translates into aContent-Typeofapplication/json). _fragment- Used to set the fragment identifier, which is the optional last part of a URL that
starts with a
#character and is used to identify a portion of a document.
_locale- Used to set the :ref:`locale <translation-locale-url>` on the request.
You can include these attributes (except _fragment) both in individual routes
and in route imports. Symfony defines some special attributes with the same name
(except for the leading underscore) so you can define them easier:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/ArticleController.php
// ...
class ArticleController extends AbstractController
{
/**
* @Route(
* "/articles/{_locale}/search.{_format}",
* locale="en",
* format="html",
* requirements={
* "_locale": "en|fr",
* "_format": "html|xml",
* }
* )
*/
public function search()
{
}
}
.. code-block:: yaml
# config/routes.yaml
article_search:
path: /articles/{_locale}/search.{_format}
controller: App\Controller\ArticleController::search
locale: en
format: html
requirements:
_locale: en|fr
_format: html|xml
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="article_search"
path="/articles/{_locale}/search.{_format}"
controller="App\Controller\ArticleController::search"
locale="en"
format="html">
<requirement key="_locale">en|fr</requirement>
<requirement key="_format">html|rss</requirement>
</route>
</routes>
.. code-block:: php
// config/routes.php
namespace Symfony\Component\Routing\Loader\Configurator;
use App\Controller\ArticleController;
return function (RoutingConfigurator $routes) {
$routes->add('article_show', '/articles/{_locale}/search.{_format}')
->controller([ArticleController::class, 'search'])
->locale('en')
->format('html')
->requirements([
'_locale' => 'en|fr',
'_format' => 'html|rss',
])
;
};
In the defaults option of a route you can optionally define parameters not
included in the route configuration. This is useful to pass extra arguments to
the controllers of the routes:
.. configuration-block::
.. code-block:: php-annotations
use Symfony\Component\Routing\Annotation\Route;
class BlogController
{
/**
* @Route("/blog/{page}", name="blog_index", defaults={"page": 1, "title": "Hello world!"})
*/
public function index(int $page, string $title)
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
blog_index:
path: /blog/{page}
controller: App\Controller\BlogController::index
defaults:
page: 1
title: "Hello world!"
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="blog_index" path="/blog/{page}" controller="App\Controller\BlogController::index">
<default key="page">1</default>
<default key="title">Hello world!</default>
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\BlogController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('blog_index', '/blog/{page}')
->controller([BlogController::class, 'index'])
->defaults([
'page' => 1,
'title' => 'Hello world!',
])
;
};
Route parameters can contain any values except the / slash character,
because that's the character used to separate the different parts of the URLs.
For example, if the token value in the /share/{token} route contains a
/ character, this route won't match.
A possible solution is to change the parameter requirements to be more permissive:
.. configuration-block::
.. code-block:: php-annotations
use Symfony\Component\Routing\Annotation\Route;
class DefaultController
{
/**
* @Route("/share/{token}", name="share", requirements={"token"=".+"})
*/
public function share($token)
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
share:
path: /share/{token}
controller: App\Controller\DefaultController::share
requirements:
token: .+
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="share" path="/share/{token}" controller="App\Controller\DefaultController::share">
<requirement key="token">.+</requirement>
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\DefaultController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('share', '/share/{token}')
->controller([DefaultController::class, 'share'])
->requirements([
'token' => '.+',
])
;
};
Note
If the route defines several parameter and you apply this permissive
regular expression to all of them, the results won't be the expected. For
example, if the route definition is /share/{path}/{token} and both
path and token accept /, then path will contain its contents
and the token, and token will be empty.
Note
If the route includes the special {_format} parameter, you shouldn't
use the .+ requirement for the parameters that allow slashes. For example,
if the pattern is /share/{token}.{_format} and {token} allows any
character, the /share/foo/bar.json URL will consider foo/bar.json
as the token and the format will be empty. This can be solved by replacing
the .+ requirement by [^.]+ to allow any character except dots.
It's common for a group of routes to share some options (e.g. all routes related
to the blog start with /blog) That's why Symfony includes a feature to share
route configuration.
When defining routes as annotations, put the common configuration in the
@Route annotation of the controller class. In other routing formats, define
the common configuration using options when importing the routes.
.. configuration-block::
.. code-block:: php-annotations
use Symfony\Component\Routing\Annotation\Route;
/**
* @Route("/blog", requirements={"locale": "en|es|fr"}, name="blog_")
*/
class BlogController
{
/**
* @Route("/{_locale}", name="index")
*/
public function index()
{
// ...
}
/**
* @Route("/{_locale}/posts/{slug}", name="post")
*/
public function show(Post $post)
{
// ...
}
}
.. code-block:: yaml
# config/routes/annotations.yaml
controllers:
resource: '../src/Controller/'
type: annotation
# this is added to the beginning of all imported route URLs
prefix: '/blog'
# this is added to the beginning of all imported route names
name_prefix: 'blog_'
# these requirements are added to all imported routes
requirements:
locale: 'en|es|fr'
# An imported route with an empty URL will become "/blog/"
# Uncomment this option to make that URL "/blog" instead
# trailing_slash_on_root: false
.. code-block:: xml
<!-- config/routes/annotations.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<!--
the 'prefix' value is added to the beginning of all imported route URLs
the 'name-prefix' value is added to the beginning of all imported route names
-->
<import resource="../src/Controller/"
type="annotation"
prefix="/blog"
name-prefix="blog_">
<!-- these requirements are added to all imported routes -->
<requirement key="locale">en|es|fr</requirement>
</import>
<!-- An imported route with an empty URL will become "/blog/"
Uncomment this option to make that URL "/blog" instead -->
<import resource="../src/Controller/" type="annotation"
prefix="/blog"
trailing-slash-on-root="false">
<!-- ... -->
</import>
</routes>
.. code-block:: php
// config/routes/annotations.php
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->import('../src/Controller/', 'annotation')
// this is added to the beginning of all imported route URLs
->prefix('/blog')
// An imported route with an empty URL will become "/blog/"
// Pass FALSE as the second argument to make that URL "/blog" instead
// ->prefix('/blog', false)
// this is added to the beginning of all imported route names
->namePrefix('blog_')
// these requirements are added to all imported routes
->requirements(['locale' => 'en|es|fr'])
;
};
In this example, the route of the index() action will be called blog_index
and its URL will be /blog/. The route of the show() action will be called
blog_post and its URL will be /blog/{_locale}/posts/{slug}. Both routes
will also validate that the _locale parameter matches the regular expression
defined in the class annotation.
.. seealso::
Symfony can :doc:`import routes from different sources </routing/custom_route_loader>`
and you can even create your own route loader.
The Request object created by Symfony stores all the route configuration
(such as the name and parameters) in the "request attributes". You can get this
information in a controller via the Request object:
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;
class BlogController extends AbstractController
{
/**
* @Route("/blog", name="blog_list")
*/
public function list(Request $request)
{
// ...
$routeName = $request->attributes->get('_route');
$routeParameters = $request->attributes->get('_route_params');
// use this to get all the available attributes (not only routing ones):
$allAttributes = $request->attributes->all();
}
}
You can get this information in services too injecting the request_stack
service to :doc:`get the Request object in a service </service_container/request>`.
In Twig templates, use the :ref:`global app object <reference-twig-global-app>`
to get the request and its attributes:
{% set route_name = app.request.attributes.get('_route') %}
{% set route_parameters = app.request.attributes.get('_route_params') %}
{# use this to get all the available attributes (not only routing ones) #}
{% set all_attributes = app.request.attributes.all %}Symfony defines some special controllers to render templates and redirect to other routes from the route configuration so you don't have to create a controller action.
Use the TemplateController to render the template whose path is defined in
the template option:
.. configuration-block::
.. code-block:: yaml
# config/routes.yaml
about_us:
path: /site/about-us
controller: Symfony\Bundle\FrameworkBundle\Controller\TemplateController::templateAction
defaults:
template: 'static_pages/about_us.html.twig'
# optionally you can define some arguments passed to the template
site_name: 'ACME'
theme: 'dark'
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="about_us" path="/site/about-us"
controller="Symfony\Bundle\FrameworkBundle\Controller\TemplateController::templateAction">
<default key="template">static_pages/about_us.html.twig</default>
<!-- optionally you can define some arguments passed to the template -->
<default key="site_name">ACME</default>
<default key="theme">dark</default>
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\DefaultController;
use Symfony\Bundle\FrameworkBundle\Controller\TemplateController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('about_us', '/site/about-us')
->controller([TemplateController::class, 'templateAction'])
->defaults([
'template' => 'static_pages/about_us.html.twig',
// optionally you can define some arguments passed to the template
'site_name' => 'ACME',
'theme' => 'dark',
])
;
};
Use the RedirectController to redirect to other routes and URLs:
.. configuration-block::
.. code-block:: yaml
# config/routes.yaml
doc_shortcut:
path: /doc
controller: Symfony\Bundle\FrameworkBundle\Controller\RedirectController
defaults:
route: 'doc_page'
# optionally you can define some arguments passed to the route
page: 'index'
version: 'current'
# redirections are temporary by default (code 302) but you can make them permanent (code 301)
permanent: true
# add this to keep the original query string parameters when redirecting
keepQueryParams: true
# add this to keep the HTTP method when redirecting. The redirect status changes
# * for temporary redirects, it uses the 307 status code instead of 302
# * for permanent redirects, it uses the 308 status code instead of 301
keepRequestMethod: true
legacy_doc:
path: /legacy/doc
controller: Symfony\Bundle\FrameworkBundle\Controller\RedirectController
defaults:
# this value can be an absolute path or an absolute URL
path: 'https://legacy.example.com/doc'
permanent: true
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="doc_shortcut" path="/doc"
controller="Symfony\Bundle\FrameworkBundle\Controller\RedirectController">
<default key="route">doc_page</default>
<!-- optionally you can define some arguments passed to the route -->
<default key="page">index</default>
<default key="version">current</default>
<!-- redirections are temporary by default (code 302) but you can make them permanent (code 301)-->
<default key="permanent">true</default>
<!-- add this to keep the original query string parameters when redirecting -->
<default key="keepQueryParams">true</default>
<!-- add this to keep the HTTP method when redirecting. The redirect status changes:
* for temporary redirects, it uses the 307 status code instead of 302
* for permanent redirects, it uses the 308 status code instead of 301 -->
<default key="keepRequestMethod">true</default>
</route>
<route id="legacy_doc" path="/legacy/doc"
controller="Symfony\Bundle\FrameworkBundle\Controller\RedirectController">
<!-- this value can be an absolute path or an absolute URL -->
<default key="path">https://legacy.example.com/doc</default>
<!-- redirections are temporary by default (code 302) but you can make them permanent (code 301)-->
<default key="permanent">true</default>
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\DefaultController;
use Symfony\Bundle\FrameworkBundle\Controller\RedirectController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('doc_shortcut', '/doc')
->controller(RedirectController::class)
->defaults([
'route' => 'doc_page',
// optionally you can define some arguments passed to the template
'page' => 'index',
'version' => 'current',
// redirections are temporary by default (code 302) but you can make them permanent (code 301)
'permanent' => true,
// add this to keep the original query string parameters when redirecting
'keepQueryParams' => true,
// add this to keep the HTTP method when redirecting. The redirect status changes:
// * for temporary redirects, it uses the 307 status code instead of 302
// * for permanent redirects, it uses the 308 status code instead of 301
'keepRequestMethod' => true,
])
;
$routes->add('legacy_doc', '/legacy/doc')
->controller(RedirectController::class)
->defaults([
// this value can be an absolute path or an absolute URL
'path' => 'https://legacy.example.com/doc',
// redirections are temporary by default (code 302) but you can make them permanent (code 301)
'permanent' => true,
])
;
};
Tip
Symfony also provides some utilities to :ref:`redirect inside controllers <controller-redirect>`
Historically, URLs have followed the UNIX convention of adding trailing slashes
for directories (e.g. https://example.com/foo/) and removing them to refer
to files (https://example.com/foo). Although serving different contents for
both URLs is OK, nowadays it's common to treat both URLs as the same URL and
redirect between them.
Symfony follows this logic to redirect between URLs with and without trailing
slashes (but only for GET and HEAD requests):
| Route URL | If the requested URL is /foo |
If the requested URL is /foo/ |
|---|---|---|
/foo |
It matches (200 status response) |
It makes a 301 redirect to /foo |
/foo/ |
It makes a 301 redirect to /foo/ |
It matches (200 status response) |
Routes can configure a host option to require that the HTTP host of the
incoming requests matches some specific value. In the following example, both
routes match the same path (/) but one of them only responds to a specific
host name:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/MainController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class MainController extends AbstractController
{
/**
* @Route("/", name="mobile_homepage", host="m.example.com")
*/
public function mobileHomepage()
{
// ...
}
/**
* @Route("/", name="homepage")
*/
public function homepage()
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
mobile_homepage:
path: /
host: m.example.com
controller: App\Controller\MainController::mobileHomepage
homepage:
path: /
controller: App\Controller\MainController::homepage
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="mobile_homepage"
path="/"
host="m.example.com"
controller="App\Controller\MainController::mobileHomepage"/>
<route id="homepage" path="/" controller="App\Controller\MainController::homepage"/>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\MainController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('mobile_homepage', '/')
->controller([MainController::class, 'mobileHomepage'])
->host('m.example.com')
;
$routes->add('homepage', '/')
->controller([MainController::class, 'homepage'])
;
};
return $routes;
The value of the host option can include parameters (which is useful in
multi-tenant applications) and these parameters can be validated too with
requirements:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/MainController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class MainController extends AbstractController
{
/**
* @Route(
* "/",
* name="mobile_homepage",
* host="{subdomain}.example.com",
* defaults={"subdomain"="m"},
* requirements={"subdomain"="m|mobile"}
* )
*/
public function mobileHomepage()
{
// ...
}
/**
* @Route("/", name="homepage")
*/
public function homepage()
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
mobile_homepage:
path: /
host: "{subdomain}.example.com"
controller: App\Controller\MainController::mobileHomepage
defaults:
subdomain: m
requirements:
subdomain: m|mobile
homepage:
path: /
controller: App\Controller\MainController::homepage
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="mobile_homepage"
path="/"
host="{subdomain}.example.com"
controller="App\Controller\MainController::mobileHomepage">
<default key="subdomain">m</default>
<requirement key="subdomain">m|mobile</requirement>
</route>
<route id="homepage" path="/" controller="App\Controller\MainController::homepage"/>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\MainController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('mobile_homepage', '/')
->controller([MainController::class, 'mobileHomepage'])
->host('{subdomain}.example.com')
->defaults([
'subdomain' => 'm',
])
->requirements([
'subdomain' => 'm|mobile',
])
;
$routes->add('homepage', '/')
->controller([MainController::class, 'homepage'])
;
};
In the above example, the subdomain parameter defines a default value because
otherwise you need to include a domain value each time you generate a URL using
these routes.
Tip
You can also set the host option when :ref:`importing routes <routing-route-groups>`
to make all of them require that host name.
Note
When using sub-domain routing, you must set the Host HTTP headers in
:doc:`functional tests </testing>` or routes won't match:
$crawler = $client->request(
'GET',
'/',
[],
[],
['HTTP_HOST' => 'm.example.com']
// or get the value from some container parameter:
// ['HTTP_HOST' => 'm.' . $client->getContainer()->getParameter('domain')]
);
If your application is translated into multiple languages, each route can define a different URL per each :doc:`translation locale </translation/locale>`. This avoids the need for duplicating routes, which also reduces the potential bugs:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/CompanyController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class CompanyController extends AbstractController
{
/**
* @Route({
* "en": "/about-us",
* "nl": "/over-ons"
* }, name="about_us")
*/
public function about()
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
about_us:
path:
en: /about-us
nl: /over-ons
controller: App\Controller\CompanyController::about
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="about_us" controller="App\Controller\CompanyController::about">
<path locale="en">/about-us</path>
<path locale="nl">/over-ons</path>
</route>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\CompanyController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('about_us', [
'en' => '/about-us',
'nl' => '/over-ons',
])
->controller([CompanyController::class, 'about'])
;
};
When a localized route is matched, Symfony uses the same locale automatically during the entire request.
Tip
When the application uses full "language + territory" locales (e.g. fr_FR,
fr_BE), if the URLs are the same in all related locales, routes can use
only the language part (e.g. fr) to avoid repeating the same URLs.
A common requirement for internationalized applications is to prefix all routes with a locale. This can be done by defining a different prefix for each locale (and setting an empty prefix for your default locale if you prefer it):
.. configuration-block::
.. code-block:: yaml
# config/routes/annotations.yaml
controllers:
resource: '../src/Controller/'
type: annotation
prefix:
en: '' # don't prefix URLs for English, the default locale
nl: '/nl'
.. code-block:: xml
<!-- config/routes/annotations.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<import resource="../src/Controller/" type="annotation">
<!-- don't prefix URLs for English, the default locale -->
<prefix locale="en"></prefix>
<prefix locale="nl">/nl</prefix>
</import>
</routes>
.. code-block:: php
// config/routes/annotations.php
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->import('../src/Controller/', 'annotation')
->prefix([
// don't prefix URLs for English, the default locale
'en' => '',
'nl' => '/nl'
])
;
};
Routing systems are bidirectional: 1) they associate URLs with controllers (as
explained in the previous sections); 2) they generate URLs for a given route.
Generating URLs from routes allows you to not write the <a href="...">
values manually in your HTML templates. Also, if the URL of some route changes,
you only have to update the route configuration and all links will be updated.
To generate a URL, you need to specify the name of the route (e.g.
blog_show) and the values of the parameters defined by the route (e.g.
slug = my-blog-post).
For that reason each route has an internal name that must be unique in the
application. If you don't set the route name explicitly with the name
option, Symfony generates an automatic name based on the controller and action.
If your controller extends from the :ref:`AbstractController <the-base-controller-class-services>`,
use the generateUrl() helper:
// src/Controller/BlogController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
class BlogController extends AbstractController
{
/**
* @Route("/blog", name="blog_list")
*/
public function list()
{
// ...
// generate a URL with no route arguments
$signUpPage = $this->generateUrl('sign_up');
// generate a URL with route arguments
$userProfilePage = $this->generateUrl('user_profile', [
'username' => $user->getUsername(),
]);
// generated URLs are "absolute paths" by default. Pass a third optional
// argument to generate different URLs (e.g. an "absolute URL")
$signUpPage = $this->generateUrl('sign_up', [], UrlGeneratorInterface::ABSOLUTE_URL);
// when a route is localized, Symfony uses by default the current request locale
// pass a different '_locale' value if you want to set the locale explicitly
$signUpPageInDutch = $this->generateUrl('sign_up', ['_locale' => 'nl']);
}
}
Note
If you pass to the generateUrl() method some parameters that are not
part of the route definition, they are included in the generated URL as a
query string::
$this->generateUrl('blog', ['page' => 2, 'category' => 'Symfony']);
// the 'blog' route only defines the 'page' parameter; the generated URL is:
// /blog/2?category=Symfony
If your controller does not extend from AbstractController, you'll need to
:ref:`fetch services in your controller <controller-accessing-services>` and
follow the instructions of the next section.
Inject the router Symfony service into your own services and use its
generate() method. When using :doc:`service autowiring </service_container/autowiring>`
you only need to add an argument in the service constructor and type-hint it with
the :class:`Symfony\\Component\\Routing\\Generator\\UrlGeneratorInterface` class:
// src/Service/SomeService.php
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
class SomeService
{
private $router;
public function __construct(UrlGeneratorInterface $router)
{
$this->router = $router;
}
public function someMethod()
{
// ...
// generate a URL with no route arguments
$signUpPage = $this->router->generate('sign_up');
// generate a URL with route arguments
$userProfilePage = $this->router->generate('user_profile', [
'username' => $user->getUsername(),
]);
// generated URLs are "absolute paths" by default. Pass a third optional
// argument to generate different URLs (e.g. an "absolute URL")
$signUpPage = $this->router->generate('sign_up', [], UrlGeneratorInterface::ABSOLUTE_URL);
// when a route is localized, Symfony uses by default the current request locale
// pass a different '_locale' value if you want to set the locale explicitly
$signUpPageInDutch = $this->router->generate('sign_up', ['_locale' => 'nl']);
}
}
The Twig template language used in :doc:`Symfony templates </templating>` provides some functions to generate both relative and absolute URLs:
{# generates relative URLs #}
<a href="{{ path('sign_up') }}">Sign up</a>
<a href="{{ path('user_profile', {username: app.user.username}) }}">
View your profile
</a>
<a href="{{ path('user_profile', {username: app.user.username, _locale: 'es'}) }}">
Ver mi perfil
</a>
{# generates absolute URLs #}
<a href="{{ url('sign_up') }}">Sign up</a>
<a href="{{ url('user_profile', {username: app.user.username}) }}">
View your profile
</a>
<a href="{{ url('user_profile', {username: app.user.username, _locale: 'es'}) }}">
Ver mi perfil
</a>
If your JavaScript code is included in a Twig template, you can use the
path() and url() Twig functions to generate the URLs and store them in
JavaScript variables. The escape() function is needed to escape any
non-JavaScript-safe values:
<script>
const route = "{{ path('blog_show', {slug: 'my-blog-post'})|escape('js') }}";
</script>
If you need to generate URLs dynamically or if you are using pure JavaScript code, this solution doesn't work. In those cases, consider using the FOSJsRoutingBundle.
Generating URLs in commands works the same as
:ref:`generating URLs in services <routing-generating-urls-in-services>`. The
only difference is that commands are not executed in the HTTP context, so they
don't have access to HTTP requests. In practice, this means that if you generate
absolute URLs, you'll get http://localhost/ as the host name instead of your
real host name.
The solution is to configure the "request context" used by commands when they generate URLs. This context can be configured globally for all commands:
.. configuration-block::
.. code-block:: yaml
# config/services.yaml
parameters:
router.request_context.host: 'example.org'
router.request_context.base_url: 'my/path'
asset.request_context.base_path: '%router.request_context.base_url%'
.. code-block:: xml
<!-- config/services.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<parameters>
<parameter key="router.request_context.host">example.org</parameter>
<parameter key="router.request_context.base_url">my/path</parameter>
<parameter key="asset.request_context.base_path">%router.request_context.base_url%</parameter>
</parameters>
</container>
.. code-block:: php
// config/services.php
$container->setParameter('router.request_context.host', 'example.org');
$container->setParameter('router.request_context.base_url', 'my/path');
$container->setParameter('asset.request_context.base_path', $container->getParameter('router.request_context.base_url'));
This information can be configured per command too:
// src/Command/SomeCommand.php
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Routing\RouterInterface;
// ...
class SomeCommand extends Command
{
private $router;
public function __construct(RouterInterface $router)
{
parent::__construct();
$this->router = $router;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
// these values override any global configuration
$context = $this->router->getContext();
$context->setHost('example.com');
$context->setBaseUrl('my/path');
// generate a URL with no route arguments
$signUpPage = $this->router->generate('sign_up');
// generate a URL with route arguments
$userProfilePage = $this->router->generate('user_profile', [
'username' => $user->getUsername(),
]);
// generated URLs are "absolute paths" by default. Pass a third optional
// argument to generate different URLs (e.g. an "absolute URL")
$signUpPage = $this->router->generate('sign_up', [], UrlGeneratorInterface::ABSOLUTE_URL);
// when a route is localized, Symfony uses by default the current request locale
// pass a different '_locale' value if you want to set the locale explicitly
$signUpPageInDutch = $this->router->generate('sign_up', ['_locale' => 'nl']);
// ...
}
}
In highly dynamic applications, it may be necessary to check whether a route exists before using it to generate a URL. In those cases, don't use the :method:`Symfony\\Component\\Routing\\Router::getRouteCollection` method because that regenerates the routing cache and slows down the application.
Instead, try to generate the URL and catch the :class:`Symfony\\Component\\Routing\\Exception\\RouteNotFoundException` thrown when the route doesn't exist:
use Symfony\Component\Routing\Exception\RouteNotFoundException;
// ...
try {
$url = $this->router->generate($routeName, $routeParameters);
} catch (RouteNotFoundException $e) {
// the route is not defined...
}
By default, generated URLs use the same HTTP scheme as the current request.
In console commands, where there is no HTTP request, URLs use http by
default. You can change this per command (via the router's getContext()
method) or globally with these configuration parameters:
.. configuration-block::
.. code-block:: yaml
# config/services.yaml
parameters:
router.request_context.scheme: 'https'
asset.request_context.secure: true
.. code-block:: xml
<!-- config/services.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<parameters>
<parameter key="router.request_context.scheme">https</parameter>
<parameter key="asset.request_context.secure">true</parameter>
</parameters>
</container>
.. code-block:: php
// config/services.php
$container->setParameter('router.request_context.scheme', 'https');
$container->setParameter('asset.request_context.secure', true);
Outside of console commands, use the schemes option to define the scheme of
each route explicitly:
.. configuration-block::
.. code-block:: php-annotations
// src/Controller/MainController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\Routing\Annotation\Route;
class SecurityController extends AbstractController
{
/**
* @Route("/login", name="login", schemes={"https"})
*/
public function login()
{
// ...
}
}
.. code-block:: yaml
# config/routes.yaml
login:
path: /login
controller: App\Controller\SeurityController::login
schemes: [https]
.. code-block:: xml
<!-- config/routes.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing https://symfony.com/schema/routing/routing-1.0.xsd">
<route id="login" path="/login" schemes="https"
controller="App\Controller\SecurityController::login"/>
</routes>
.. code-block:: php
// config/routes.php
use App\Controller\SecurityController;
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->add('login', '/login')
->controller([SecurityController::class, 'login'])
->schemes(['https'])
;
};
The URL generated for the login route will always use HTTPS. This means that
when using the path() Twig function to generate URLs, you may get an
absolute URL instead of a relative URL if the HTTP scheme of the original
request is different from the scheme used by the route:
{# if the current scheme is HTTPS, generates a relative URL: /login #}
{{ path('login') }}
{# if the current scheme is HTTP, generates an absolute URL to change
the scheme: https://example.com/login #}
{{ path('login') }}The scheme requirement is also enforced for incoming requests. If you try to
access the /login URL with HTTP, you will automatically be redirected to the
same URL, but with the HTTPS scheme.
If you want to force a group of routes to use HTTPS, you can define the default scheme when importing them. The following example forces HTTPS on all routes defined as annotations:
.. configuration-block::
.. code-block:: yaml
# config/routes/annotations.yaml
controllers:
resource: '../src/Controller/'
type: annotation
defaults:
schemes: [https]
.. code-block:: xml
<!-- config/routes/annotations.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/routing
https://symfony.com/schema/routing/routing-1.0.xsd">
<import resource="../src/Controller/" type="annotation">
<default locale="schemes">HTTPS</prefix>
</import>
</routes>
.. code-block:: php
// config/routes/annotations.php
use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
return function (RoutingConfigurator $routes) {
$routes->import('../src/Controller/', 'annotation')
->schemes(['https'])
;
};
Note
The Security component provides
:doc:`another way to enforce HTTP or HTTPS </security/force_https>`
via the requires_channel setting.
Here are some common errors you might see while working with routing:
Controller "App\Controller\BlogController::show()" requires that you provide a value for the "$slug" argument.
This happens when your controller method has an argument (e.g. $slug):
public function show($slug)
{
// ...
}
But your route path does not have a {slug} parameter (e.g. it is
/blog/show). Add a {slug} to your route path: /blog/show/{slug} or
give the argument a default value (i.e. $slug = null).
Some mandatory parameters are missing ("slug") to generate a URL for route "blog_show".
This means that you're trying to generate a URL to the blog_show route but
you are not passing a slug value (which is required, because it has a
{slug} parameter in the route path). To fix this, pass a slug value when
generating the route:
$this->generateUrl('blog_show', ['slug' => 'slug-value']);
// or, in Twig
// {{ path('blog_show', {slug: 'slug-value'}) }}
.. toctree::
:hidden:
controller
.. toctree::
:maxdepth: 1
:glob:
routing/*