A set of methods implemented by a Message Filter app extension to handle query requests.
- iOS 11.0+
- Mac Catalyst 13.0+
A Message Filter app extension that adopts this protocol forms a response about the message described in the query, based on information that it either stores locally or receives from an associated network service.
When the app extension defers a query request to a server, the system handles all network communication, passing the request to the server and passing the server's response back to the app extension.