Node.js and Express: notes and background exports

You will use Node.js 22 and build a web app named notes-web plus a worker named notes-worker in the examples Project’s nodejs Environment.

Express handles HTTP routes. The pg, mysql2, and MongoDB drivers implement the three persistence options; redis and the AWS S3 SDK handle jobs and files.

Complete Before you start, then follow these chapters in order:

1. Create and deploy hello
2. Persist notes in PostgreSQL
3. Add a Redis export worker
4. Save exports in object storage
5. Try MariaDB or MongoDB instead
6. Prepare for production, or troubleshoot and clean up

Downloads: hello source · complete notes source. The source walkthrough is included directly from those runnable files.