Node bot

An other note here is that, because you're using the `bodyParser` middleware, if the POST request is sent with the correct Content-Type header (i.e `application/json`) then `req.body.map` will already be an object because `bodyParser` parses it for you. I think the best approach to this is testing whether the `Content-Type` header is `application/json` and if not return a 400 status code without further processing.