My Ktor application plugin's `onCallReceive` event...

# ktor

[David Herman]

My Ktor application plugin's onCallReceive event is not getting triggered. I'm wondering if there's something I'm not understanding about what onCallReceive means, or maybe I'm doing something else in my ktor application that's interrupting it?

[David Herman]

Nothing crazy in the plugin, just doing this for now:

val demo = createApplicationPlugin("DemoKobwebServerPlugin") {
            onCall { call -> <http://application.log.info|application.log.info>("onCall") }
            onCallReceive { call -> <http://application.log.info|application.log.info>("onCallReceive") }
            onCallRespond { call -> <http://application.log.info|application.log.info>("onCallRespond") }
        }
        application.install(demo)

[David Herman]

Logs look like this when I connect to a route (and fetch multiple resources I imagine)

2024-01-15 10:28:42.201 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCall
2024-01-15 10:28:42.202 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCallRespond
2024-01-15 10:28:42.211 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCall
2024-01-15 10:28:42.211 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCallRespond
2024-01-15 10:28:42.854 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCall
2024-01-15 10:28:42.855 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCallRespond
2024-01-15 10:28:42.867 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCall
2024-01-15 10:28:42.868 [eventLoopGroupProxy-4-3] INFO  ktor.application - onCallRespond

[David Herman]

Shouldn't it be "onCall" -> "onCallReceive" -> "onCallRespond"? Or am I thinking about "onCallReceive" incorrectly?

[Aleksei Tirman [JB]]

The onCallReceive hook is triggered only when you call the ApplicationCall.receive method (usually in a route's handler).