Node - Simple round robin load balancer

index.js

// cmd> node index.js
// requests to port 8080 will round robin between ports 8081 & 8082

var http = require('http');
var httpProxy = require('http-proxy');
var proxy = httpProxy.createProxyServer();

var servers = [
    'http://127.0.0.1:8081',
    'http://127.0.0.1:8082'
];

http.createServer(function (req, res) {
    if (req.url === '/favicon.ico') return;

    var target = servers.shift();
    console.log('proxying traffic to :%s', target);

    proxy.web(req, res, {
        target: target
    });

    servers.push(target);

}).listen(8080);