cloud function hello

/**
 * Responds to any HTTP request.
 *
 * @param {!express:Request} req HTTP request context.
 * @param {!express:Response} res HTTP response context.
 */
exports.helloWorld = (req, res) => {
  
  let name = req.body.name || 'World';
  
  res.status(200)
    .send("Hello " + name);
};