Real time code editing and execution.
Make sure you have Node.js and the Heroku CLI installed.
Dev mode runs the express serve with Nodemon so it will auto-restart when it detects file save changes.
$ npm install
$ npm run dev
Your app should now be running on localhost:5000.
$ heroku create
$ git push heroku master
$ heroku open
or
For more information about using Node.js on Heroku, see these Dev Center articles: