simple Loadbalanger for NodeJS using node-http-proxy module

proxy.js

var fs = require('fs'),
    http = require('http'),
    https = require('https'),
    httpProxy = require('http-proxy');

var options = {
  https: {
    key: fs.readFileSync('key.pem', 'utf8'),
    cert: fs.readFileSync('cert.pem', 'utf8')
  }
};
var addresses = [
  {
     host: '1.2.3.4',
     port: 3000
  },
  {
     host: '4.3.2.1',
     port: 3001
  }
];
// Next line is for HTTP targets
//------------------
var proxy = new httpProxy.HttpProxy();

// When you have https targets (uncomment these and comment the above line for this)
//------------------
//var proxy = new httpProxy.HttpProxy({.
//  target: {
//      https: true
//  }
//});

https.createServer(options.https, function (req, res) {
var target = addresses.shift();
proxy.proxyRequest(req, res, target);
addresses.push(target);
}).listen(443, "1.2.3.4");