How to use redirect in Slim4?

6

POST /api/v2/user/current - 405 NOT ALLOWED

This is the correct behavior, because a redirect 302 from
/api/v2/user/current to /api/v1/user/current
is a GET and not a POST request.

In Slim v4 the App::subRequest() method has been removed. You can perform sub-requests via $app->handle($request) from within a route callable.

Example (not tested). This example callable could also be a Action class.

use use Psr\Http\Message\ServerRequestInterface;

// ...

$app->group(
    '/v2',
    function (Group $group) {
        // Internal forward / sub-request 
        $group->post(
            'user/current',
            function (ServerRequestInterface $request) use ($app) {
                $request = $request->withUri($request->getUri()->withPath('/v1/user/current'));
                return $app->handle($request->withMethod('POST'));
            }
        );
        // ...
    }
);