Tells the system to pass the current query request to the app extension's associated network service.
- iOS 11.0+
- Mac Catalyst 13.0+
A completion block that contains either the network response to the HTTPS request or an error.
When your Message Filter app extension calls this method to defer a query to its associated server, the system performs an HTTPS network request to a URL specified in the app extension's
Info file. The response to that request (or an error) is returned asynchronously in an
To make a network request on behalf of a Message Filter app extension, the system uses an HTTP
POST request formatted in JSON, similar to the request shown below.