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Features enterprise-grade JWT authentication, role-based admin controls, and real-time health monitoring.\n\n## 🌐 Live Production System\n\n| Component | URL | Status |\n|-----------|-----|--------|\n| **API Documentation** | [Swagger UI](https://34.95.5.30.nip.io/user/docs) | ✅ Live |\n| **Health Check** | [Service Health](https://34.95.5.30.nip.io/user/health) | ✅ Live |\n| **Frontend Integration** | [E-Commerce App](https://ecommerce-app-omega-two-64.vercel.app) | ✅ Live |\n| **Database Health** | [Database Status](https://34.95.5.30.nip.io/user/health/database) | ✅ Live |\n\n## 📸 Screenshots\n\n### API Documentation \u0026 Health Monitoring\n![Swagger Documentation](screenshots/swagger-user-service.PNG)\n*Interactive API documentation with all endpoints and schemas*\n\n![Health Check](screenshots/health-check-user-service.PNG)\n*Real-time service health monitoring with database connectivity*\n\n### Authentication System\n![User Registration](screenshots/register-user-service.PNG)\n*Secure user registration with validation*\n\n![User Login](screenshots/login-user-service.PNG)\n*JWT-based authentication system*\n\n![User Profile](screenshots/profile.PNG)\n*User profile management and information*\n\n### Administrative Features\n![Admin Dashboard](screenshots/admin-user-management.PNG)\n*Administrative user management dashboard*\n\n![Admin Controls](screenshots/update-user-admin.PNG)\n*Admin user control and role management*\n\n## ⭐ Key Features\n\n### 🔐 Authentication \u0026 Security\n- **JWT Authentication** with 30-minute token expiration and refresh capabilities\n- **Role-Based Access Control** (User/Admin) with privilege separation\n- **Password Security** with bcrypt hashing and strength validation\n- **Session Management** with IP tracking and concurrent session limits\n- **HTTPS Everywhere** with Let's Encrypt SSL certificates\n\n### 👤 User Management\n- **User Registration** with comprehensive email and mobile validation\n- **Profile Management** with secure update mechanisms and data validation\n- **Email Verification** workflow with token-based confirmation system\n- **Password Reset** via secure email tokens with expiration handling\n- **Account Status** tracking (Active/Blocked/Suspended/Pending Verification)\n\n### 👑 Administrative Features\n- **User Dashboard** with comprehensive statistics and analytics\n- **User Control** (Block/Unblock/Suspend users with reason tracking)\n- **Role Management** (Promote users to admin with proper authorization)\n- **Session Monitoring** (View and terminate user sessions remotely)\n- **Audit Trail** for all administrative actions with timestamp logging\n\n### 🏗 Technical Excellence\n- **FastAPI Framework** for high-performance async operations\n- **Neon PostgreSQL** with connection pooling and SSL encryption\n- **Kubernetes Deployment** with health checks and auto-scaling\n- **GitOps Automation** with ArgoCD continuous deployment\n- **Production Monitoring** with comprehensive health endpoints\n\n## 🛠 Technology Stack\n\n| Category | Technology | Purpose |\n|----------|------------|---------|\n| **Backend Framework** | FastAPI 0.104+ | High-performance async web framework |\n| **Database** | Neon PostgreSQL | Serverless PostgreSQL on AWS us-east-2 |\n| **Authentication** | JWT + bcrypt | Secure token-based authentication |\n| **Container Platform** | Docker + Kubernetes | Containerized deployment and orchestration |\n| **Cloud Platform** | Google Kubernetes Engine | Scalable container orchestration |\n| **GitOps** | ArgoCD | Automated deployment and configuration sync |\n| **SSL/TLS** | Let's Encrypt | Automatic certificate management |\n| **Monitoring** | Custom Health Endpoints | Real-time service monitoring |\n\n## 🚀 Quick Start\n\n### Prerequisites\n- Python 3.11+\n- Docker (optional)\n- PostgreSQL database access\n\n### Local Development Setup\n```bash\n# Clone repository\ngit clone https://github.com/yourusername/user-service-microservice.git\ncd user-service-microservice\n\n# Install dependencies\npip install -r requirements.txt\n\n# Configure environment\ncp .env.example .env\n# Edit .env with your database credentials\n\n# Run the service\npython app.py\n```\n\n### Docker Deployment\n```bash\n# Build and run container\ndocker build -t user-service .\ndocker run -p 9090:9090 --env-file .env user-service\n```\n\n### Local Access Points\n- **Swagger Documentation**: http://localhost:9090/docs\n- **Health Check**: http://localhost:9090/health\n- **Service Information**: http://localhost:9090/info\n\n## 📚 API Endpoints\n\n### Authentication Endpoints\n- `POST /auth/register` - User registration with validation\n- `POST /auth/login` - JWT authentication\n- `POST /auth/logout` - Session termination\n- `GET /auth/me` - Current user profile\n- `POST /auth/forgot-password` - Password reset initiation\n- `POST /auth/reset-password` - Password reset completion\n- `POST /auth/verify-email` - Email verification\n- `POST /auth/resend-verification` - Resend verification email\n\n### User Management Endpoints\n- `GET /users/{user_id}` - Get user profile by ID\n- `PUT /users/{user_id}` - Update user profile\n- `GET /users` - List users (with filtering)\n- `GET /users/role/{role}` - Get users by role\n\n### Admin Operations (Admin Access Required)\n- `GET /admin/users` - List all users with admin view\n- `GET /admin/users/blocked` - Get blocked users\n- `POST /admin/users/{user_id}/block` - Block user with reason\n- `POST /admin/users/{user_id}/unblock` - Unblock user\n- `POST /admin/users/{user_id}/suspend` - Suspend user temporarily\n- `PUT /admin/users/{user_id}/role` - Change user role\n- `POST /admin/create-user` - Create user with specific role\n- `GET /admin/stats` - User statistics dashboard\n- `GET /admin/users/{user_id}/sessions` - View user sessions\n- `POST /admin/users/{user_id}/logout-all` - Force logout all sessions\n\n### System Health \u0026 Monitoring\n- `GET /health` - Comprehensive service health check\n- `GET /health/database` - Database connectivity verification\n- `GET /info` - Detailed service information\n- `GET /` - Service overview and quick links\n\n## 🏗 Architecture\n\n### Production Architecture\n```\nFrontend (Vercel HTTPS) → API Gateway (GKE HTTPS) → User Service (GKE Pod) → Neon PostgreSQL (AWS)\n```\n\n### Database Design\n- **Users Table**: Complete user profiles with authentication and status data\n- **Sessions Table**: Active session tracking for security monitoring\n- **Optimized Indexes**: Fast queries on email, status, role, and timestamps\n\n### Security Architecture\n- **JWT Tokens**: Stateless authentication with unique token IDs and expiration\n- **Password Security**: bcrypt hashing with salt for secure storage\n- **Input Validation**: Comprehensive sanitization preventing injection attacks\n- **CORS Protection**: Configured for specific trusted origins only\n\n## 🚀 Production Deployment\n\n### Kubernetes Configuration\n- **Platform**: Google Kubernetes Engine (GKE)\n- **Namespace**: `research-apps`\n- **Scaling**: Horizontal Pod Autoscaler with resource limits\n- **SSL**: Let's Encrypt certificates with automatic renewal\n- **Health Checks**: Liveness, readiness, and startup probes\n\n### GitOps Deployment Process\n1. **Code Commit** → GitHub repository trigger\n2. **CI/CD Pipeline** → Docker image build and registry push\n3. **Manifest Update** → Kubernetes deployment files update\n4. **ArgoCD Sync** → Automatic deployment to GKE cluster\n5. **Health Verification** → Service health confirmation and rollback if needed\n\n### Environment Configuration\n```bash\n# Database Connection\nDATABASE_URL=postgresql+asyncpg://user:pass@ep-cold-breeze-aedi5hre-pooler.c-2.us-east-2.aws.neon.tech/neondb\n\n# JWT Configuration\nSECRET_KEY=dyO5kHriKkZm_8tSzTxZOmKGd0iGhMLPusNi61pi5bU4MxJ12SZ2B0-iznJrLP-DTPsHDbao3_QduMo2TVpOCA\nALGORITHM=HS256\nACCESS_TOKEN_EXPIRE_MINUTES=30\n\n# CORS Configuration\nCORS_ORIGINS=https://ecommerce-app-omega-two-64.vercel.app,https://34.95.5.30.nip.io\n```\n\n## 📊 Production Performance\n\n### Performance Metrics\n- **Response Time**: ~50ms average API response time\n- **Uptime**: 99.9% availability in production environment\n- **Scalability**: Horizontal scaling with Kubernetes autoscaling\n- **Concurrent Users**: Supports multiple concurrent sessions per user\n- **Database Performance**: Connection pooling with optimized query execution\n\n### Monitoring \u0026 Health Checks\n- **Real-time Health**: Continuous service status monitoring\n- **Database Health**: Connection and query performance tracking\n- **API Metrics**: Request/response time and error rate monitoring\n- **Business Metrics**: User registration, authentication, and admin action rates\n\n## 🔒 Security Implementation\n\n### Authentication Security\n- **JWT Management**: Secure token generation with unique IDs and expiration\n- **Password Protection**: bcrypt hashing with configurable rounds\n- **Session Security**: IP tracking, user agent validation, and concurrent limits\n- **Token Blacklisting**: Logout token invalidation and cleanup\n\n### Application Security\n- **Input Validation**: Comprehensive field validation and sanitization\n- **SQL Injection Protection**: Parameterized queries and ORM usage\n- **XSS Prevention**: Output encoding and content security policies\n- **Rate Limiting**: Protection against brute force attacks\n- **HTTPS Enforcement**: SSL/TLS encryption for all communications\n\n## 🌟 Portfolio Highlights\n\n### Technical Achievements\n- **Production-Ready Microservice**: Serving real users with enterprise-grade reliability\n- **Cloud-Native Architecture**: Kubernetes deployment with GitOps automation\n- **Security Excellence**: Comprehensive authentication and authorization system\n- **Scalable Design**: Microservices architecture with horizontal scaling capabilities\n- **Modern Technology Stack**: FastAPI, PostgreSQL, Docker, Kubernetes, ArgoCD\n\n### Development Excellence\n- **Clean Architecture**: Modular design with separation of concerns\n- **Comprehensive Testing**: Unit tests, integration tests, and security testing\n- **API Documentation**: Interactive Swagger UI with complete endpoint documentation\n- **Error Handling**: Structured error responses with proper HTTP status codes\n- **Code Quality**: Type hints, docstrings, and consistent formatting\n\n### Operational Excellence\n- **Automated Deployment**: GitOps workflow with zero-downtime deployments\n- **Health Monitoring**: Comprehensive health checks and service monitoring\n- **Database Management**: Connection pooling, migrations, and optimization\n- **Security Monitoring**: Session tracking, audit trails, and security logging\n\n## 🔗 Live System Integration\n\nThis User Service powers authentication for a complete e-commerce platform:\n- **Frontend**: Next.js application on Vercel with seamless API integration\n- **Product Service**: Node.js on Heroku with JWT token validation\n- **Cart Service**: Java Spring Boot on Heroku with session management\n- **Search Service**: Node.js on Render with user-based filtering\n- **Admin Controller**: Node.js on Azure Container Instances for system management\n\n## 📞 Contact Information\n\n**Benhamouche Kousaila**  \n📧 Email: k.benhamouche@esi-sba.dz  \n🎓 Institution: École Supérieure d'Informatique (ESI-SBA)  \n💼 LinkedIn: in/kousaila-benhamouche  \n🐙 GitHub: https://github.com/kousaila502\n\n---\n\n## 🏆 Project Recognition\n\n⭐ **Star this repository if you find it useful!**\n\n*This project demonstrates enterprise-level microservices development, cloud-native deployment, GitOps automation, and modern security practices. Perfect showcase for full-stack development capabilities and DevOps expertise.*\n\n**Technologies Demonstrated**: FastAPI • PostgreSQL • JWT • Kubernetes • Docker • ArgoCD • GitOps • Cloud Computing • Microservices • Security • Authentication","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkousaila502%2Fuser-service-microservice","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkousaila502%2Fuser-service-microservice","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkousaila502%2Fuser-service-microservice/lists"}