Node.js – Socket.IO 1.0 – Timeout event

I’m using Socket.IO (the latest version 1.1.0) to exchange messages with an Android app (the client).
I would like to set a timeout (5s for example) to check if my client is still connected or not (I would like to handle the case when the Android app crashes). Moreover, I would like to generate an event when a this timeout occurs.
What I want to do looks like this:

1/ Set the timeout

var socket = require('')({
   //options go here
  'timeout': 5000 //set the timeout to 5s

2/ Handle timeout event:

socket.on('timeout', function(){
   //my treatment

But I don’t find any implementation to handle the timeout.

Thanks for your help !


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Method 1

That’s not what the timeout setting handles. The timeout is how long the server will wait for a re-connect before it tears down that connection. You probably don’t want to set it that short; possibly even leave it at the default.

Socketio automatically sends heartbeats by default. You really should just need to assign a function to run when the ‘disconnect’ message is received on the server side.

io.on('connection', function(socket){
       console.log('a user connected');
       socket.on('disconnect', function(){
           console.log('user disconnected');

Check out this post for more information about the heartbeat:
Advantage/disadvantage of using socketio heartbeats

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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