kelonye / express-facebook-messenger

var express = require('express');
var bodyParser = require('body-parser');
var bot = require('../lib/')('<token>');

// or

var bot = require('../lib/')({
  validationToken: '<token>',
  pageAccessToken: '<token>'
});

bot.on('message', function(senderId, msg){
  this.send(senderId, {
    text: 'Hello to you too!'
  });
});

var app = express();
app.use(bodyParser.json());
app.use('/hook', bot.router());
app.listen(5000);