How do I deploy a Node.js app on Heroku?

How do I deploy a Node.js app on Heroku?

To deploy a Node.js app on Heroku, first ensure you have the Heroku CLI installed. Then, follow these steps: 1. Create a Heroku account. 2. Log in to the Heroku CLI using heroku login. 3. Navigate to your app's directory in the terminal. 4. Initialize a Git repository if you haven't already with git init. 5. Create a new Heroku app with heroku create. 6. Add your files to Git and commit them. 7. Deploy your app using git push heroku master. 8. Finally, open your app with heroku open.

What if I need to set environment variables?

You can set environment variables in Heroku using the CLI. Use the command heroku config:set VAR_NAME=value to set a variable. For example, heroku config:set NODE_ENV=production.

How do I view the logs for my app?

To view the logs for your Heroku app, use the command heroku logs --tail. This will show you real-time logs.

Can I use a database with my app?

Yes, Heroku supports various databases. You can add a PostgreSQL database using the command heroku addons:create heroku-postgresql. After that, you can access the database URL through your app's config.