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A clean, modular Nest.js prototype built to learn & practice real backend concepts the right way.

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🚀 Description

This project started as a small practice exercise and turned into a full mini-authentication system.

The goal was to understand and implement:

• Nest.js (modules, services, guards, interceptors, DI)
• Prisma ORM
• PostgreSQL
• Session-based authentication
• Redis session storage
• Rate limiting via Nest's ThrottlerModule
• Logging & caching interceptors
• Multi-session support (per-device login/logout)

…and all of that has been successfully implemented.

Note

This is not meant to be a production app. but rather a learning-focused prototype that demonstrates backend architecture and clean NestJS patterns.

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✨ Features

• Signup / Signin / Signout endpoints
• Http-only cookie sessions
• Redis-backed session storage
• Multi-session login support (login from multiple devices)
• Session management routes:
  • List active sessions
  • Logout specific session
  • Logout all sessions
• /users/me route with authentication guard
• Per-route rate limiting
• Request logging interceptor
• Simple caching interceptor for /users/me
• Proper module separation (Auth, Users, Sessions, Redis, Prisma…)

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🛠️ Tech Stack

• Nest.js (framework)
• TypeScript
• Prisma ORM
• PostgreSQL
• Redis
• PNPM

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📦 Project Setup

pnpm install

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▶️ Running the Project

# development
pnpm run start

# watch mode
pnpm run start:dev

# production mode
pnpm run start:prod

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🧪 Tests

$ pnpm run test
bash: /usr/bin/test-runner: line 1: tests: author has skill issue and does not write tests (yet)

📜 License

This project is MIT licensed.