SteamHue.js

var SteamCommunity = require('steamcommunity');
var http = require('http');

var steam = new SteamCommunity();

steam.login({
  accountName: '[redacted]',
  password: '[redacted]',
  steamguard: '[redacted]',
}, function(err) {
  if (err) throw err;
  console.log('Logged in!');

  steam.chatLogon();

  steam.on('chatLoggedOn', function() {
    console.log('Logged into chat!');
  });

  steam.on('chatMessage', function() {
    console.log('Chat message!');

    var req = http.request({
      host: '192.168.0.11',
      port: 80,
      path: '/api/[redacted]/lights/4/state',
      method: 'PUT',
    }, function(res) {
      console.log('Request sent!');
    });

    req.on('error', function() {});

    req.write(JSON.stringify({ alert: 'select' }));

    req.end();
  });
});