Detecting disconnections\server down.

[Oren Shvalb]

Hello,

I'm using vertxbus that internally built upon sockjs and I have a basic question.

When I call 'onopen' for the first time in order to establish a connection, How can I know that server is down?

At this point when I call 'onopen' and pass a callback function - if server is down the method is stuck and doesn't return at all.

in addition, how do I detect disconnections?

Thanks!