saragholizadeh/NodeJS-ExpressJS

NodeJS Best Practices Project

A robust Node.js backend project implementing best practices, clean architecture, and modern development patterns.

🚀 Features

• Clean Architecture (Domain-Driven Design)
• TypeScript
• JWT Authentication
• Role-Based Authorization
• Request Validation
• Error Handling
• Unit Testing
• Database Migrations
• API Documentation
• Rate Limiting
• Security Best Practices

🛠️ Tech Stack

• Node.js
• TypeScript
• Express.js
• MySQL with TypeORM
• Jest for Testing
• Zod for Validation
• JWT for Authentication

📁 Project Structure

project-root/
├── src/
│   ├── components/          # Business components
│   │   ├── users/
│   │   │   ├── domain/     # Business logic
│   │   │   ├── data-access/# Data access layer
│   │   │   └── entry-points/# Controllers & routes
│   │   ├── posts/
│   │   └── auth/
│   ├── config/             # Configuration files
│   ├── libraries/          # Shared utilities
│   └── migrations/         # Database migrations
├── tests/                  # Test files
└── docs/                   # Documentation

🔧 Getting Started

Prerequisites

• Node.js (v18 or higher)
• MySQL
• npm/yarn

Installation

1. Clone the repository:

git clone https://github.com/yourusername/nodejs-best-practices.git

2. Install dependencies:

npm install

3. Set up environment variables:

cp .env.example .env
# Edit .env with your configuration

4. Run database migrations:

npm run migration:run

5. Start the development server:

npm run dev

Running Tests

# Run all tests
npm test

# Run with coverage
npm run test:coverage

📝 API Documentation

Authentication

Register a new user

POST /api/users/register
Content-Type: application/json

{
    "name": "John Doe",
    "email": "john@example.com",
    "password": "SecurePass123!"
}

Login

POST /api/auth/login
Content-Type: application/json

{
    "email": "john@example.com",
    "password": "SecurePass123!"
}

Users

Get User Profile

GET /api/users/:id
Authorization: Bearer <token>

Posts

Create Post

POST /api/posts
Authorization: Bearer <token>
Content-Type: application/json

{
    "title": "Post Title",
    "content": "Post content here",
    "published": true
}

Get Posts

GET /api/posts

🛡️ Security

• Helmet.js for security headers
• Rate limiting
• JWT token authentication
• Request validation
• SQL injection prevention
• XSS protection
• CORS configured

🔍 Testing Strategy

• Unit Tests for business logic
• Integration Tests for APIs
• Separate test database
• Test coverage reports
• Automated testing in CI/CD

⚡ Performance Optimizations

• Query optimization
• Response caching
• Rate limiting
• Proper indexing

📦 Available Scripts

• npm run dev: Start development server
• npm run build: Build for production
• npm start: Start production server
• npm test: Run tests
• npm run migration:generate: Generate migrations
• npm run migration:run: Run migrations
• npm run lint: Run ESLint
• npm run format: Format code with Prettier

🤝 Contributing

1. Fork the repository
2. Create a new branch
3. Make your changes
4. Run the tests
5. Submit a pull request

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

👏 Acknowledgments

• Node.js best practices documentation
• TypeORM documentation
• Express.js documentation