gistfile1.txt

var http = require('http');
var cp = require('child_process');
var httpProxy = require('http-proxy');

var sentinelChild = cp.spawn('node', ['app.js'], {stdio: 'inherit'});
var agentChild    = cp.spawn('node', ['agent/agent.js'], {stdio: 'inherit'});

var agent = new httpProxy.HttpProxy({
  target: {
    host: 'localhost',
    port: 3002
  }
});

var sentinel = new httpProxy.HttpProxy({
  target: {
    host: 'localhost',
    port: 3001
  }
});

var server = httpProxy.createServer(function (req, res) {
  if(req.url.match(new RegExp("^\/agent"))) {
    agent.proxyRequest(req, res);
  } else {
    sentinel.proxyRequest(req, res);
  }
});

server.on('upgrade', function(req, socket, head) {
  if(req.url.match(new RegExp("^\/agent"))) {
    agent.proxyWebSocketRequest(req, socket, head);
  } else {
    sentinel.proxyWebSocketRequest(req, socket, head);
  }
});

server.listen(3000);

process.on('exit', function() {
  sentinelChild.kill();
  agentChild.kill();
});