V4 reference to add entity layout builder

[Boby]

Hi,

I am trying to setup a schema to get layout builder data, is there any reference i can look into? setting up schema should I use

Interface entityInterface or nodeInterface?

[ayalon]

Checkout our module https://www.drupal.org/project/graphql_core_schema
You should be able to build such a schema with a few clicks using our UI to expose the related fields.
But keep in mind: The most important part of the Layout Builder data is stored serialized in the database, which is a huge design flaw.