node.js - Forwarding socket.io/engine.io connection to another server

Question

We are trying to find the best approach to our load balancing issue with websockets.

Websocket can initially connect to any server, that server will run some logic and then if needed it will "redirect" the client to appropriate server.

Is there a way in socket.io/engine.io to redirect/forward connections?

Something like:

io.use(function(socket){
    // ... logic
    if(logic === true){
        socket.redirect("172.10.10.2:3000");
    }
});

I am aware of that socket.redirect is not valid function but is there something like that?

Answer 1

socket.io not support something like socket.redirect

But you can use Nginx to make proxy for load balance and use socket.io-redis to make adapter for socket.io and handle if(logic === true){} in multiple nodes.