A Node.js-based microservices architecture with API Gateway and authentication service.

This project implements a microservices architecture with the following components:

• API Gateway: Entry point for all client requests, handles routing and request forwarding
• Auth Service: Handles user authentication, authorization, and JWT token management

microservice/
├── gateway/                 # API Gateway service
│   ├── src/
│   │   └── index.js        # Gateway main entry point
│   ├── .env                # Gateway environment variables
│   └── package.json        # Gateway dependencies
│
├── auth-service/           # Authentication service
│   ├── src/
│   │   └── server.js       # Auth service entry point
│   ├── .env                # Auth service environment variables
│   └── package.json        # Auth service dependencies
│
├── .gitignore
└── README.md

• Node.js (v14 or higher)
• npm or yarn
• MongoDB (for auth-service)

1. Clone the repository:

git clone <repository-url>
cd microservice

2. Install dependencies for each service:

Gateway Service:

cd gateway
npm install

Auth Service:

cd auth-service
npm install

Each service requires environment variables. Create .env files in each service directory:

Gateway (.env):

PORT=3000
AUTH_SERVICE_URL=http://localhost:3001

Auth Service (.env):

PORT=3001
MONGODB_URI=mongodb://localhost:27017/auth-db
JWT_SECRET=your-secret-key

Run each service in development mode with hot-reload:

Gateway:

cd gateway
npm run dev

Auth Service:

cd auth-service
npm run dev

Gateway:

cd gateway
npm start

Auth Service:

cd auth-service
npm start

• Express.js
• http-proxy-middleware
• dotenv

• Express.js
• MongoDB with Mongoose
• JWT (jsonwebtoken)
• bcryptjs
• dotenv

• Main entry point: http://localhost:3000
• Routes requests to appropriate microservices

• Base URL: http://localhost:3001
• Endpoints:
  • POST /register - User registration
  • POST /login - User authentication
  • GET /verify - Token verification

• JWT-based authentication
• Password hashing with bcryptjs
• Environment variables for sensitive data
• Token-based authorization

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

This project is licensed under the MIT License.

For questions or support, please open an issue in the repository.