npm install

• APP_PORT: application server port
• MONGO_DB_HOST: mongodb host url
• MONGO_DB_PORT: mongodb host port
• MONGO_DB_DATABASE: name of the mongodb database
• MONGO_DB_USERNAME: mongodb username
• MONGO_DB_PASSWORD: mongodb password
• ENVIRONMENT: dev/prod

npm run dev

You will need:

• Git
• Heroku account
• A Heroku application
• Heroku CLI

heroku login
heroku git:remote -a your_heroku_app_name
git push heroku master
heroku logs
heroku ps:scale web=1

Now, go to Heroku dashboard and click on Open app (top right of the page)