Node.js

Part 1: The server side

What changes when JavaScript runs on a server, what package.json is for, and where secrets live.

1. 1Node from zero: the server side45 min · 3 steps

Part 2: Modules and waiting

Sharing code between files, promises, async/await, and doing things at the same time.

1. 2Node.js: modules and async work40 min · 3 steps

Part 3: Building an API

The parts of a request, routing by method and path, checking JSON from strangers, and failing safely.

1. 3Building an API: requests, routes and answers55 min · 4 steps

Part 4: The HTTP details

What headers do, a session cookie written properly, deciding who may call you from a browser, and what may be cached.

1. 4Headers, cookies, CORS and caching55 min · 4 steps

Part 5: Data

Why a database rather than a file, queries values cannot hijack, the loop that makes a hundred queries, and work that is all or nothing.

1. 5Talking to a database55 min · 4 steps

Part 6: Accounts

Passwords stored so a stolen database is worthless, sessions that expire and rotate, and permission checks that deny by default.

1. 6Who you are, and what you may do60 min · 4 steps

Part 7: Tests worth having

Choosing cases by what could break, writing tests that survive a rewrite, and faking the database and the clock.

1. 7Tests that actually catch things50 min · 4 steps

Part 8: Running it for real

What a deploy actually does, logs you can search, health checks that tell the truth, and shutting down without dropping anyone.

1. 8Shipping it, and running it55 min · 4 steps

Part 9: The project

Build one API end to end from everything above: store, write endpoint, read endpoint and the router that ties them together.

1. 9Project: the quote API, end to end90 min · 4 steps