Doesn't support multiple host routing

[BenoitDuffez]

I have a single Symfony app that is served from 3 different domains and presents a different app/UI on each.
Say it's app.domain.com, www.domain.com and api.domain.com.

Here is the configuration

config/
├── bootstrap.php
├── bundles.php
├── packages
...
├── routes
│   ├── app.yaml
│   ├── landing.yaml
│   └── api.yaml
├── routes.yaml
└── services.yaml

Then config/routes/app.yaml has the following (similar with config/routes/landing.yaml and config/routes/api.yaml):

controllers:
  resource:
    path: ../../src/Controller/App      # this will have Landing and Api instead of App in the other files
    namespace: Company\Controller\App
  type: attribute
  name_prefix: app.                     # this will be landing. and api. in the other files
  host:
    - app.domain.com                    # this will also different in the other files
    - staging.app.domain.com
    - tests.app.domain.local
    - app.localhost

This creates several routes and Symfony apparently assumes it's the locale (it adds it as a .X suffix):

$ ./bin/console debug:router | awk '/homepage/||NR<4'
 --------------------------- ---------- -------- --------------------------- ---------
  Name                        Method     Scheme   Host                        Path
 --------------------------- ---------- -------- --------------------------- ---------
  app.homepage.0              ANY        ANY      app.domain.com              /
  app.homepage.1              ANY        ANY      staging.app.domain.com      /
  app.homepage.2              ANY        ANY      tests.app.domain.local      /
  app.homepage.3              ANY        ANY      app.localhost               /
  landing.homepage.0          ANY        ANY      www.domain.com              /
  landing.homepage.1          ANY        ANY      staging.domain.com          /
  landing.homepage.2          ANY        ANY      tests.domain.local          /
  landing.homepage.3          ANY        ANY      landing.localhost           /

Now in the IDE the routes are referenced to as {{ path('app.homepage') }} for example, but the plugin underlines saying the route doesn't exist and that I should pick among app.homepage.0, app.homepage.1, app.homepage.2, app.homepage.3.

The url_{generating,matching}_routes.php files both contains the routes similar to what is shown above with the debug:router invocation.
It contains an additional setting: the locale:

    'app.homepage.0' => [[], ['_controller' => 'Company\\Controller\\App\\HomepageController::index', '_locale' => 0, '_canonical_route' => 'app.homepage'], [], [['text', '/']], [['text', 'app.domain.com']], [], []],
    'app.homepage.1' => [[], ['_controller' => 'Company\\Controller\\App\\HomepageController::index', '_locale' => 1, '_canonical_route' => 'app.homepage'], [], [['text', '/']], [['text', 'staging.app.domain.com']], [], []],
    'app.homepage.2' => [[], ['_controller' => 'Company\\Controller\\App\\HomepageController::index', '_locale' => 2, '_canonical_route' => 'app.homepage'], [], [['text', '/']], [['text', 'tests.app.domain.local']], [], []],
    'app.homepage.3' => [[], ['_controller' => 'Company\\Controller\\App\\HomepageController::index', '_locale' => 3, '_canonical_route' => 'app.homepage'], [], [['text', '/']], [['text', 'app.localhost']], [], []],

I think the canonical route is exactly what Symfony expects (it will fill the locale argument based on the HTTP host).

PS: I'm sure I had submitted this a couple weeks ago but can't find it... sorry if repost

[LauLaman]

Same for multi locale routes:

#[Route([
    'nl' => '/boodschappen',
    'en' => '/groceries',
], name: 'dashboard')]
class DashboardController

Trying to use in a twig template

instead of an indexed number we'll have an actual key

[BenoitDuffez]

How can we help this?