Hey folks :wave: Quick question on the new `create...

# ktor

[Michael Waitt]

Hey folks 👋
Quick question on the new createApplicationPlugin API. More info in 🧵.

[Michael Waitt]

We currently have an interceptor in our ktor server that merges custom context data (if any) into the CoroutineContext on ApplicationCallPipeline.Setup.

pipeline.intercept(customContextPhase) {
    val context = genContext(call)

    if (context != null) {
        withContext(context) {
            proceed()
        }
    } else {
        proceed()
    }
}

[Michael Waitt]

Since withContext() and proceed() are both not directly available to us in createApplicationPlugin 's scope, do you have any recommendations on a way to achieve this same functionality? Or should we just stick with a pipeline interceptor in this case?

[Michael Waitt]

We did successfully create a custom Hook that basically does what this interceptor does. But this didn't feel quite right, as the hook ends up doing the plugin's heavy lifting.

[Aleksei Tirman [JB]]

I think it’s OK to write a hook when you need low-level control over the execution.