🔐 AuthService: Secure & Scalable Authentication Microservice

Introduction

This repository contains the source code for the AuthService, a dedicated microservice built on Spring Boot. Its primary role is to handle all user authentication, authorization, and token management, providing a secure foundation for all connected services within a larger system.

By centralizing authentication, this service ensures consistency, compliance, and scalability across the entire application ecosystem.

✨ Features

The AuthService is designed to provide a full suite of authentication capabilities:

• User Registration: Secure sign-up with password hashing.
• User Login: Authenticates credentials and issues a JSON Web Token (JWT).
• Token Validation: API endpoint to validate incoming JWTs for protected routes.
• Token Refresh: (Optional) Mechanism to issue new access tokens using a refresh token.
• Role-Based Access Control (RBAC): (If applicable) Support for defining and checking user roles.
• [auth_db]: Persistent storage for user and role data.

🛠️ Technologies Used

This project leverages the power and maturity of the Java ecosystem:

Category	Technology	Description
Backend	Java 17+	Core programming language.
Framework	Spring Boot [VERSION, e.g., 3.x]	Rapid application development framework.
Security	Spring Security	Declarative security framework.
Tokenization	JSON Web Tokens (JWT)	Stateless authentication mechanism.
Database	[MYSQL]	Persistent storage for user data.
Build Tool	[ Gradle]	Dependency management and build automation.

🚀 Getting Started

Follow these steps to set up and run the project locally.

Prerequisites

You need the following software installed on your machine:

• Java Development Kit (JDK) 17 or higher
• [Gradle] build tool
• A running instance of [auth_db]

Installation and Setup

1. Clone the repository:

   git clone [https://github.com/ansfaiz/AuthService.git](https://github.com/ansfaiz/AuthService.git)
   cd AuthService

2. Configure Environment Variables: Create an application.properties (if it doesn't exist) and configure your database and JWT secret:

   # Database Configuration (Example for PostgreSQL)
   spring.datasource.url=jdbc:postgresql://localhost:5432/auth_db
   spring.datasource.username=[YOUR_DB_USERNAME]
   spring.datasource.password=[YOUR_DB_PASSWORD]
   
   # JWT Configuration
   jwt.secret=[A_LONG_AND_SECURE_SECRET_STRING_AT_LEAST_32_CHARS]
   jwt.expiration-ms=[86400000] # Example: 24 hours

   Replace the placeholders with your actual secrets and connection details.

3. Build and Run: Use your build tool to compile the project and start the server:

   • Using Gradle:

     ./gradlew build
     java -jar build/libs/AuthService-0.0.1-SNAPSHOT.jar

The service will start on http://localhost:[8080] (or the port specified in your configuration).

💡 API Endpoints

The following are the primary endpoints exposed by the AuthService:

HTTP Method	Endpoint	Description
POST	/auth/v1/signup	Creates a new user account and return refreshToken with token.
POST	/auth/v1/login	Authenticates user and returns a JWT.
GET	/auth/v1/refreshToken	Validates a JWT and returns refreshToken.

Example Request (Login)

Request: POST http://localhost:8080/auth/v1/login

{
    "username": "user.name",
    "password": "strongpassword123"
}

Successful Response (200 OK):

**signUp-request

{
    "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
    "type": "Bearer",
    "id": 101,
    "username": "user.name",
    "roles": ["ROLE_USER"]
}

🤝 Contribution

Contributions are welcome! If you find a bug or have a feature request, please open an issue or submit a pull request.

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'feat: Add some amazing feature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

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📄 License

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📧 Contact

faiyaz Ansari

• GitHub: @ansfaiz
• Contact/Portfolio: [LINKEDIN ID -https://linkedin.com/in/md-faiyaz-ansari-6719212a4]