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kotlinlang

I'm trying to migrate my custom Feature into the new Plugin API, but I can't find what is the new equivalent of:
```pipeline.environment.monitor.subscribe(Routing.RoutingCallStarted) { it: RoutingApplicationCall
    it.route[..]
}```
Where should I look?

The crucial part being that I need the `RoutingApplicationCall`, not an `ApplicationCall` like all the new `onCall` etc. methods are providing.

All right, looks like looking for a new API was my mistake, it's exactly the same except you can access `environment` directly from `PluginBuilder` block.

you can use `on(MonitoringEvent(Routing.RoutingCallStarted)) { ... }`  hook

Thank you, I think the docs are a little confusing on this one. In <https://ktor.io/docs/custom-plugins.html#other>
it says:
&gt; There is also the `MonitoringEvent` hook that allows you to <https://ktor.io/docs/custom-plugins.html#handle-app-events|handle application events>, such as application startup or shutdown.
which made me think MonitoringEvent is only for application-level events. All the examples given in the linked page also are application-level events.

So it's not clear that MonitoringEvent can be used for call-level events, and where would one discover what possible events exist.