HTTP Protocol Stations (Fastify + TypeScript)

This project is an educational showcase of HTTP behavior using small, focused stations. It intentionally avoids heavy frontend frameworks and keeps styling minimal so protocol mechanics are the focus.

Run

npm run dev

Open: http://localhost:3000

Project Structure

• src/routes/stations/*: station page route plugins
• src/routes/api/*: API route plugins for protocol behaviors
• src/public/*: static HTML/CSS/JS assets served under /public/*
• src/plugins/static.ts: static asset plugin registration

Stations

1. GET /stations/forms - HTML GET/POST form submission
2. GET /stations/fetch-json - fetch() JSON POST
3. GET /stations/rest-put - idempotent PUT mini REST API
4. GET /stations/cache - Cache-Control response policies
5. GET /stations/chunked - chunked transfer stream
6. GET /stations/sse - Server-Sent Events (text/event-stream)
7. GET /stations/session-auth - session cookie auth + CSRF protection
8. GET /stations/jwt-auth - JWT access token + rotating refresh token
9. GET /stations/conditional - ETag / If-None-Match (304)
10. GET /stations/cors - CORS preflight (OPTIONS) and origin checks

Useful API Endpoints

• POST /api/fetch-json/echo
• PUT|GET|DELETE /api/todos/:id
• GET /api/cache/public|private|no-store
• GET /api/chunked/time
• GET /api/sse/clock
• POST /api/session/login
• GET /api/session/me
• POST /api/session/protected-action
• POST /api/session/logout
• POST /api/jwt/login
• GET /api/jwt/me
• POST /api/jwt/refresh
• POST /api/jwt/logout
• GET /api/conditional/resource
• OPTIONS|POST /api/cors/echo

Quick curl examples

curl -i http://localhost:3000/api/cache/public
curl -i -X PUT http://localhost:3000/api/todos/42 -H 'content-type: application/json' -d '{"title":"Read RFC 9110","done":false}'
curl -i http://localhost:3000/api/chunked/time?count=3\&intervalMs=200
curl -i http://localhost:3000/api/sse/clock?count=3\&intervalMs=200

Notes

• Data is in-memory only; restart clears todos/sessions/tokens.
• JWT signing/verification uses the jsonwebtoken package.