Adds a listener for FetchEvent. The provided IO is run once to install the routes. If
the event is not intercepted by routes then it is treated as an ordinary request.
Additional context can be retrieved via FetchEventContext including a Supervisor for
running background tasks.
Adds a listener for FetchEvent. The provided IO is run once to install the routes. If
the event is not intercepted by routes then it is treated as an ordinary request.
Additional context can be retrieved via FetchEventContext including a Supervisor for
running background tasks.