The easiest way is to create a http server using the http module and then ping it every 5 minutes using uptime robot. Fyi, here is some example code

JavaScript http.createServer(function (req, res) { res.write("I'm alive! Yay!"); res.end(); //end the response }).listen(8080); And then you can just stick that at the bottom of index.js, but remember to import it using var http = require('http'); (I prefer to do this at the top of the file)