Question: Are disconnect initiated by peer and disconnect caused by network problem handled differently?

[fangqiao]

Hi I am new to socket io. I am now working on an experiment project with socket io now.

I know socket io has built in automatic reconnect. On my case, I need to handle server initiated disconnect and network connection failure caused disconnect differently.

Is there a way to tell which is which? Are different events emitted?

Hope to find some answers. Thanks in advance.

[MasterJames]

I believe you can call disconnect from the server.
#47
Or as you might imagine you can setup to tell a client to call it's disconnect like shown here.
http://www.unknownerror.org/opensource/Automattic/socket.io/q/stackoverflow/5048231/force-client-disconnect-from-server-with-socket-io-and-nodejs

socket.disconnect();

is suppose to work.

On the client you can specify how many times to try to reconnect and how often.
http://stackoverflow.com/questions/11632969/how-configure-reconnecting-in-socket-io

var socket = io({
        'reconnection': true,
        'reconnectionDelay': 1000,
        'reconnectionDelayMax' : 5000,
        'reconnectionAttempts': 5
    });

It maybe that you need to set reconnection:false at some point too so sending the message to the client to disconnect is a wise thing to do.

Also consider authorization if blocking
connect.utils.parseSignedCookie(handshakeData.cookie['express.sid'], 'secret')

from https://howtonode.org/socket-io-auth

[bratberg]

socket.disconnect();
is suppose to work.

You could also try socket.disconnect(true); - (closes the connection, not just the namespace)

https://github.com/socketio/socket.io/blob/b754cff2b415a8cbbf0f23c61824bcc69b078430/docs/API.md#socketdisconnectclose

[darrachequesne]

For future readers: please see the documentation here.