Handle browser reload socket.io

Question

There is a way in socket.io to create a timeout in the disconnected event, then check if the user has been reconnected ?

The idea is to emit data / save user state in database only if the user is not reconnected after timeout

Edit: Followed @Are Wojciechowski answer, I'm done with a multi tabs & F5 flood handler

https://gist.github.com/foohey/7696811

Answer 1

There is a socket.on('disconnect', function () { ... });. So you can just do

socket.on('disconnect', function () {     setTimeout(function () {          //do something     }, 10000); }); 

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EDIT 1:

I get it now. So maybe you should do something like this:

Client:

//right after connection socket.emit('register', localstorage.getItem('gameUniqueId'));  //somewhere, when game starts var randomlyGeneratedUID = Math.random().toString(36).substring(3,16) + +new Date; localStorage.setItem('gameUniqueId', randomlyGeneratedUID); 

Server:

io.sockets.on('connection', function (socket) {     var player = null;      socket.on('register', function (data) {         if (data !== null) {             //there was something in localstorage             if (game.Players.existsUID(data)) {                 player = game.Players.getByUID(data);                 player.disconnected = false;             } else {                 //timed out, create new player             }         } else {             //localStorage is not set, create new player         }     });      socket.on('disconnect', function () {         player.disconnected = true;         setTimeout(function () {             if (player.disconnected) player.delete();         }, 10000);     }); });