dynamic routing

public/index.php

@@ -92,7 +92,7 @@ $app->group('/data', function() use ($app) {
 
       ## If no barcode is given, redirect to catalog
       if(!isset($barcode))
-        return $response->withRedirect(Config::get('urls')['catalog_url'], 303);
+        return $response->withRedirect($this->get('router')->pathFor('catalog'), 303);
 
       ## If barcode was not found in DB, return 404
       if(!$databaseUtil->isInDB($barcode))