Existing Wording: The project is seeking feedback on whether the implementation guide should mandate one of the subscription channel approaches (either rest-hook or websocket). Feedback for or against standardization as well as an expression of preference is welcome.

Comment:

I think that you should prefer rest-hooks, but leave the door open for websockets. Given the number of likely intermediaries, and the typicl problems associated with proxying websockets it's unclear that websockets would really be successful in an enterprise, production environment. Of course, production implementation experience would better inform this decision.

Summary:

I think that you should prefer rest-hooks, but leave the door open for websockets.