text: var restify = require("restify");
  var server = restify.createServer();
  
  function respond(req, res, next) {
      res.send('Hello Restify!');
  }
  
  server.get('/', respond);
  
  var port = process.env.PORT || 5000;
  server.listen(port, function() {
      console.log("Listening on " + port);
  });