Pimcore - creating a smple route which displays a single tag by passing it a tag id

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;

// …

/*
* @Route(“/tag/show/{id}”, name=”show_tag”)
* @param Request $request
* @param $id
*/
public action showTag(
    Request $request,
    $id
)
{
    $tag = \Pimcore\Model\Element\Tag::getById($id);

    $taggedObjects = \Pimcore\Model\Element\Tag::getElementsForTag($tag, ‘object’);

    $this->view->tag = $tag;
    $this->view->taggedObjects = $taggedObjects;
}