server.js

var express = require('express');
var app = express();
var bodyParser = require('body-parser');
var http = require('http').Server(app);
var io = require('socket.io')(http);

// This will inlcude a body in the request when getting post
app.use(bodyParser.json());

app.use(express.static('public'));

var socket;
io.on('connection', function(mySocket){
  console.log('socket.io test connection');
  socket = mySocket;
});

app.post('/', function (req, res) {
  console.log("We got a webhook WEEEE!");

  var messageId = req.body.data.id;
  var personId = req.body.data.personId;

  socket.emit('messageReceived', messageId, personId);

  res.end();
});


http.listen(3000, function(){
  console.log('listening on *:3000');
});