messenger.coffee

exports.dispatch = (req, res) ->
  # Facebook's challenge
  if req.query['hub.mode'] == 'subscribe' and \
     req.query['hub.verify_token'] == 'c2f18de9'
    return res.status(200).send req.query['hub.challenge']

  # Actual webhooks
  if req.body.object == 'page'
    for entry in req.body.entry
      for e in entry.messaging
        console.log e.message.text

  # Always acknowledge
  res.sendStatus(202)