A modern programming language that makes developers happier.

kotlinlang

Hi. I am creating `ApplicationEngineEnvironment` with multiple `sslConnector` calls on different ports, plus one connector on `localhost` with port set to 0 (ie. let it select random available port). I know from <https://github.com/ktorio/ktor/issues/909|here> that I can use `resolvedConnectors()` function to determine what port was selected, however I also want to use the`start(wait = true)` . Is there a way to call start without waiting, get the selected port value and then wait in the same way as it would with `start(wait = true)` ?

You can start a server without blocking a thread to resolve connectors and then block it manually. Here is example:
```val engine = embeddedServer(Netty, port = 0) {}

val serverJob = CompletableDeferred&lt;Unit&gt;()
engine.application.environment.monitor.subscribe(ApplicationStopped) {
    serverJob.complete(Unit)
}

engine.start(wait = false)

val port = engine.resolvedConnectors().first().port
println(port)

serverJob.await()```

Thank you :slightly_smiling_face: Is this functionally the same what ktor would do under the hood?