check order by and code for menu cats:

app/views/api/restaurant/menu/_menu.json.jbuilder

@@ -7,6 +7,8 @@ json.valid_time_to menu.valid_time_to.strftime("%H:%M")
 if (menu.menu_categories)
   json.categories  menu.menu_categories do |category|
     json.id category.id
+    json.code category.code
+    json.order_by category.order_by
     json.name category.name
     json.alt_name category.alt_name
     json.parent_id category.menu_category_id