Different header/footer for guest users

Question

I want to show different header and footer for the guest users and default one for the logged-in users.

What is the right way to do so ?

AND using the custom module to achieve this.

Answer 1

Here is my suggestion:

1/ In your block, need to add Customer Group identifier to cache key.

2/ layout_load_before observer event. Put this event under frontend scope. In your observer, add your layout handle with your conditions.

$layout = $observer->getEvent()->getLayout();
$layout->getUpdate()->addHandle('your_custom_handle_layout');