XG API: How to get data?


I'd like to automate some tasks with my XG like adding or deleting Web Filter Exceptions via API. This works but after or before modifying the exceptions, I'd like to get a list of all the exceptions that are already present (including the actual config). The same for interfaces, firewall rules, etc.

The API documentation tells us how to add, edit or delete things, but how can I get whats configured? Did I miss something? I can't find this in the API docs...