Besides alarms, another strategy is to use WebSockets. Request comes in over WebSockets. Optionally
Besides alarms, another strategy is to use WebSockets. Request comes in over WebSockets. Optionally you confirm receipt of the request over the WebSocket. However, you push the request to a Worker (with a longer stay-alive time and cpu time billing instead of DOs clock time billing) that accomplishes the request. When it's done, it calls back to the DO that wakes up the hiberated WebSocket and sends the response.
