Rewrite response in laravel

routes.php

<?php

Route::filter('after', function($response)
{
	$params = \Laravel\Request::$route->parameters;
	// The 'type' is the last param
	// example: /product/(:num).(:any)
	$type = array_pop($params);
	if($type == 'json') {
		$res = Response::json($response->content->data);
		foreach($response as $key => &$value) {
			$response->$key = $res->$key;
		}
	}
});