We have created an attribute like this: ```val raw...

# ktor

[jeggy]

We have created an attribute like this:

val rawRouteAttribute = AttributeKey<String>("rawRouteAttribute")
environment.monitor.subscribe(Routing.RoutingCallStarted) { call ->
    call.attributes.put(rawRouteAttribute, call.route.parent.toString())
}

and then retrieving it back in the CallLogging plugin. But when looking at java flight recording, we can see that in our call logging plugin we get a few java.lang.IllegalStateException exceptions and with the message of No instance for key AttributeKey: rawRouteAttribute.
I'm wondering in what cases does ktor use the CallLogging plugin but not fire a RoutingCallStarted event?

[Aleksei Tirman [JB]]

Ktor fires the RoutingCallStarted event only when one of the routes is resolved. So you might get the IllegalStateException when the server responds with an implicit 404 status code.

[jeggy]

Makes sense. So basically internet bots spamming random urls 😛