Disconnect Reason

[Valodya]

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You want to:

• [] report a bug
• [x ] request a feature

Current behaviour

Server can disconnect a client only without reason

io.on('connection', (socket) => {
  setTimeout(() => socket.disconnect(true), 5000);
});

Steps to reproduce (if the current behaviour is a bug)

Note: the best way to get a quick answer is to provide a failing test case, by forking the following fiddle for example.

Expected behaviour

I'm looking for a way to disconnect a client with some reason (on the server), for example:

• connection session time exceeded
• user-token has become invalid
• or something else

in the end I would like to have something like this:

//server
io.on('connection', (socket) => {
  setTimeout(() => {
     socket.disconnect(true, 'My super reason why the connection has been disconnected')
  }, 5000);
});

//client
socket.on('disconnect', (reason) => {
  // reason === 'My super reason why the connection has been disconnected'
});

please let me know if you are going to add the feature in future, or maybe there are any problems to implement it.

Setup

• OS: any
• browser: any
• socket.io version: latest

Other information (e.g. stacktraces, related issues, suggestions how to fix)

[tomas-correia]

This would be more than helpful to avoid nasty custom "disconnect_reason" events, I second this.

[bryghtlabs-richard]

It might be nice to include the websocket code here as well(assuming reason would be the same type the server currently has).