Provide callback when prompt is ready

[cristianrgreco]

Hi, thanks for creating this library!

I have a use case where I connect to an EC2 instance via SSM, but then want to execute an SSH command to tunnel (I cannot use the native SSM tunnel). The problem I have is I do not know when the prompt is ready for the SSH command, so don't know when to run it. I currently have a setTimeout on connection.onopen but it won't work all the time.

Would it be possible to have some callback?

Thanks

[rupertbg]

i use the readyState from the WebSocket e.g. new WebSocket(websocketStreamURL), seems to work ok?