However, the previous answer could still be confusing for some programmers. Most especially beginners who are most probably using an older book or tutorial.
Or perhaps you still feel the facade is needed. Sure you can use it.
Me for one I still love to use the facade, this is because some times while building my api I forget to use the '\' before the Response.
if you are like me,
simply add
"use Response;"
above your class ...extends contoller.
this should do.
with this you can now use:
$response = Response::json($posts, 200);
instead of:
$response = \Response::json($posts, 200);