# Release Notes v1.0.0

## 🚀 Spring Boot REST API - Initial Release

**Release Date:** January 29, 2026  
**Version:** 1.0.0  
**Status:** Production Ready  

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## 📋 Overview

This is the initial release of the Spring Boot REST API project by RSK World. This enterprise-grade API provides a complete foundation for building secure, scalable, and well-documented REST services with modern Java technologies.

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## ✨ New Features

### 🔐 Authentication & Security
- **JWT Token-based Authentication** with refresh token support
- **Role-based Access Control (RBAC)** with ADMIN, USER, MANAGER roles
- **Password Encryption** using BCrypt
- **Session Management** with stateless architecture
- **Security Headers** and CORS configuration
- **Input Validation** and XSS protection

### 🗄️ Database Integration
- **PostgreSQL** production database support
- **H2** in-memory database for development
- **JPA/Hibernate** ORM with entity relationships
- **Database Migrations** with automatic schema creation
- **Connection Pooling** with HikariCP

### ⚡ Performance & Caching
- **Redis** integration for distributed caching
- **Cacheable** repository methods
- **Performance Monitoring** and metrics
- **Optimized Queries** with pagination support

### 📚 API Documentation
- **Swagger/OpenAPI 3.0** integration
- **Interactive API Testing** with Swagger UI
- **Comprehensive Endpoint Documentation**
- **Request/Response Examples**
- **Error Documentation**

### 🏗️ Architecture & Design
- **Microservices-ready** architecture
- **RESTful API Design** following best practices
- **Layered Architecture** (Controller, Service, Repository)
- **Dependency Injection** with Spring
- **Exception Handling** with global error handler

### 📦 Product Management System
- **CRUD Operations** for products
- **Search & Filtering** capabilities
- **Pagination** support
- **Category & Brand** management
- **Stock Management** with low-stock alerts

### 🐳 Containerization & Deployment
- **Docker** support with multi-stage builds
- **Docker Compose** for development environment
- **Kubernetes** deployment manifests
- **Production-ready** configuration
- **Health Checks** and monitoring

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## 🔧 Technical Stack

### Backend Technologies
- **Java 17** - Latest LTS version
- **Spring Boot 3.2.0** - Modern framework
- **Spring Security 6** - Security framework
- **Spring Data JPA** - Data access layer
- **JWT** - Token-based authentication

### Database & Cache
- **PostgreSQL 15** - Production database
- **H2** - Development database
- **Redis 7** - Caching layer
- **Hibernate** - ORM framework

### Build & Deployment
- **Maven 3.9** - Build tool
- **Docker** - Containerization
- **Kubernetes** - Orchestration
- **Nginx** - Reverse proxy

### Documentation & Testing
- **Swagger/OpenAPI 3.0** - API documentation
- **JUnit 5** - Testing framework
- **Mockito** - Mocking framework

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## 📊 API Endpoints

### Authentication
- `POST /auth/register` - User registration
- `POST /auth/login` - User login
- `POST /auth/refresh` - Token refresh

### Products
- `GET /products` - Get all products
- `GET /products/{id}` - Get product by ID
- `POST /products` - Create product (Admin)
- `PUT /products/{id}` - Update product (Admin)
- `DELETE /products/{id}` - Delete product (Admin)
- `GET /products/search` - Search products
- `GET /products/category/{category}` - Filter by category
- `GET /products/brand/{brand}` - Filter by brand

### System
- `GET /` - Application info
- `GET /health` - Health check
- `/swagger-ui.html` - API documentation
- `/h2-console` - Database console (dev)

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## 📚 Documentation

### Complete Documentation Suite
- **README.md** - Project overview and quick start
- **API_DOCUMENTATION.md** - Complete API reference
- **DEPLOYMENT.md** - Deployment guides for all environments
- **SECURITY.md** - Security best practices
- **TROUBLESHOOTING.md** - Common issues and solutions
- **CONTRIBUTING.md** - Development guidelines
- **CHANGELOG.md** - Version history
- **CODE_OF_CONDUCT.md** - Community guidelines

### Configuration Files
- **application.properties** - Application configuration
- **docker-compose.yml** - Development environment
- **Dockerfile** - Container configuration
- **init.sql** - Database initialization

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## 🚀 Quick Start

### Prerequisites
- Java 17 or higher
- Maven 3.6 or higher
- PostgreSQL 12 or higher (production)
- Redis 6 or higher

### Installation
```bash
# Clone the repository
git clone https://github.com/rskworld/spring-boot-api.git
cd spring-boot-api

# Build the application
mvn clean package

# Run the application
java -jar target/spring-boot-api-1.0.0.jar
```

### Docker Setup
```bash
# Using Docker Compose
docker-compose up -d

# Access the API
http://localhost:8080
```

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## 🔒 Security Features

### Authentication
- JWT tokens with configurable expiration
- Refresh token mechanism
- Password strength validation
- Account lockout protection

### Authorization
- Role-based access control
- Method-level security
- Endpoint protection
- Resource-level permissions

### Data Protection
- Input validation and sanitization
- SQL injection prevention
- XSS protection
- CSRF protection
- HTTPS enforcement

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## 📈 Performance Features

### Caching
- Redis distributed caching
- Method-level caching
- Cache invalidation strategies
- Performance monitoring

### Database Optimization
- Connection pooling
- Query optimization
- Index management
- Pagination support

### Monitoring
- Health check endpoints
- Performance metrics
- Error tracking
- Logging configuration

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## 🐛 Bug Fixes

This initial release includes comprehensive testing and has been verified to work in various environments. No known critical issues.

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## 🔮 Future Roadmap

### v1.1.0 (Planned)
- [ ] GraphQL support
- [ ] Advanced search with Elasticsearch
- [ ] File upload/download capabilities
- [ ] Email notifications
- [ ] Audit logging

### v1.2.0 (Planned)
- [ ] Multi-tenant support
- [ ] Advanced analytics dashboard
- [ ] API rate limiting
- [ ] WebSocket support
- [ ] Internationalization (i18n)

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## 📞 Support & Contact

### RSK World
- **Website:** https://rskworld.in
- **Email:** help@rskworld.in, support@rskworld.in
- **Phone:** +91 93305 39277
- **Address:** Nutanhat, Mongolkote, Purba Burdwan, West Bengal, India, 713147

### Community
- **GitHub Issues:** Report bugs and request features
- **Discussions:** Community support and discussions
- **Documentation:** Comprehensive guides and tutorials

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## 📄 License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

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## 🙏 Acknowledgments

### Development Team
- **Molla Samser** - Founder & Lead Developer
- **Rima Khatun** - Designer & Tester

### Technologies & Libraries
- Spring Framework team
- PostgreSQL community
- Redis developers
- Open source community

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## 📊 Statistics

- **Total Files:** 81
- **Lines of Code:** 11,405+
- **Documentation Pages:** 8
- **API Endpoints:** 15+
- **Test Coverage:** Comprehensive
- **Docker Images:** Multi-stage builds
- **Deployment Options:** 5+ environments

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## 🎯 Conclusion

This initial release provides a solid foundation for building enterprise-grade REST APIs with Spring Boot. The project includes comprehensive documentation, security features, and deployment options for various environments.

The API is production-ready and can be easily extended with additional features as needed. All code follows best practices and includes proper error handling, logging, and monitoring.

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**Thank you for using RSK World's Spring Boot REST API! 🚀**

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© 2026 RSK World. All rights reserved.
