How to be notified when SSL/TLS handshake is done

[xVanTuring]

I'm currently try to add NIOSSL(Client/Server)Handler dynamically, after received first custom identity data. I was able to use channel.pipeline.addHandler to do that, but I could find a way to get notified when the handshake is completed.

I noticed that in NIOHTTP1, we have a configureUpgradableHTTPClientPipeline extension function which will return a upgrade result. Can we provide something like that?

[Lukasa]

The NIOSSLHandler fires a user event down the channel pipeline when it completes the handshake: specifically, it fires one of these two depending on the outcome. You can see an example of how it is used in grpc-swift.