MVVM with LiveData and Network Bound Resource Single source of truth for item retrieval , all results from the api are cached on the local Room Database and returned to the activites/fragments, cache is only cleared when the timestamp expires or if the DB returns empty results (Manual Override in settings)
API/RoomDB -> Repository -> ViewModel -> Fragments/Activities
Log showing that timestamp has expired on room object so the app will retrieve items from api.
Manual override for clearing cache.
