Next Steps

You practiced

• Installing Node and npm
• Modules, package.json, scripts, and packages
• Files, paths, and a raw HTTP server
• Express routes, middleware, and JSON APIs
• Env vars, async/await, and error handling

Practice project ideas

A notes JSON API with file persistence, a CLI that reads a CSV, or a static file server with Express.

Where to go next

• Databases (SQLite or Postgres) with a query library
• Authentication sessions or tokens
• TypeScript for Node services
• Testing with Node's test runner or Jest
• Deploying to a PaaS or a container

Keep the event loop in mind

Prefer non-blocking I/O and short handlers. Offload heavy CPU work when apps grow.