[FrameworkBundle] PR #26213 Document redirections with 307/308 HTTP status codes

routing/redirect_in_config.rst

@@ -155,3 +155,76 @@ action:
     Because you are redirecting to a route instead of a path, the required
     option is called ``route`` in the ``redirect()`` action, instead of ``path``
     in the ``urlRedirect()`` action.
+
+Redirecting POST/PUT calls
+--------------------------
+
+As default behaviour of both methods mentioned above results in sending
+response with ``301`` or ``302`` HTTP status codes, the following call will
+be made with use of HTTP request method. But it some scenarios it is
+expected or required that following call will be made with the same HTTP
+method, i.e. when initial call was ``POST`` one, then following one should
+be also ``POST`` not ``GET``. In order to achieve this both
+:method:`Symfony\\Bundle\\FrameworkBundle\\Controller\\RedirectController::urlRedirectAction`
+and
+:method:`Symfony\\Bundle\\FrameworkBundle\\Controller\\RedirectController::redirectAction`
+are accepting aditional switch called ``keepRequestMethod``:
+
+.. configuration-block::
+
+    .. code-block:: yaml
+
+        # config/routes.yaml
+
+        # ...
+
+        admin:
+            path: /webhooks/foo
+            controller: Symfony\Bundle\FrameworkBundle\Controller\RedirectController::redirectAction
+            defaults:
+                route: foo_webhook_handler
+                permanent: true
+                keepRequestMethod: 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
+                http://symfony.com/schema/routing/routing-1.0.xsd">
+
+            <!-- ... -->
+
+            <route id="admin" path="/webhooks/foo"> ``
+                <default key="_controller">Symfony\Bundle\FrameworkBundle\Controller\RedirectController::redirectAction</default>
+                <default key="route">foo_webhook_handler</default>
+                <default key="permanent">true</default>
+                <default key="keepRequestMethod">true</default>
+            </route>
+        </routes>
+
+    .. code-block:: php
+
+        // config/routes.php
+        use Symfony\Component\Routing\RouteCollection;
+        use Symfony\Component\Routing\Route;
+
+        $collection = new RouteCollection();
+        // ...
+
+        $collection->add('admin', new Route('/webhooks/foo', array(
+            '_controller' => 'Symfony\Bundle\FrameworkBundle\Controller\RedirectController::redirectAction',
+            'route'       => 'foo_webhook_handler',
+            'permanent'   => true,
+            'keepRequestMethod' => true
+        )));
+
+        return $collection;
+
+Switching ``keepRequestMethod`` switch to ``true`` will result in sending
+response with either ``307`` (when ``permament`` switch is set to false) or
+``308`` (with ``permament`` being true) HTTP status code which will tell that
+HTTP request should be repeated with both request method and body being
+unchanged.