Nestjs Todo Playground

A simple and extensible Todo backend playground built with NestJS, MongoDB (Mongoose), and TypeScript. This project demonstrates modular architecture, DTO validation, custom error handling, and includes ready-to-use Docker and test setups.

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🚀 Features

• Modular structure with NestJS
• Authentication (JWT tokens)
• MongoDB integration using Mongoose
• User registration with unique nickname validation
• DTO validation with class-validator
• Custom error and exception handling
• Ready-to-use integration tests (Jest & Supertest)
• Docker support for easy development and deployment

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⚙️ Installation

npm install

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🏃‍♂️ Running the Project

$ cd docker
$ docker compose up 

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🚶 Stopping the Project

$ cd docker
$ docker compose down 

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🧪 Testing

test
├── api
│   ├── auth
│   │   └── sign-in.test.ts
│   └── user
│       └── create-user.test.ts
├── common
│   ├── auth.helper.ts
│   ├── db
│   │   ├── index.ts
│   │   ├── mongo.helper.ts
│   │   └── redis.helper.ts
│   ├── helper.ts
│   ├── index.ts
│   └── user.helper.ts
├── jest-e2e.json
├── test-config.ts
└── test-setup.ts

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🧪 To run tests

npm run test

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📬 Example API Usage

Create a user:

POST /user
Content-Type: application/json

{
  "nickname": "your_nickname",
  "fullname": "Your Name",
  "password": "your_password"
}

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📁 Project Structure

• src/ - Main application source code
• test/ - Unit and e2e tests
• docker/ - Docker and Docker Compose files

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🤝 Contributing

Pull requests and suggestions are welcome!

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📚 Resources

• NestJS Documentation
• Mongoose Docs
• Jest Docs

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🪪 License

This project is for educational purposes and is currently unlicensed.