A scalable, modular, and production-ready E-Learning platform, inspired by Udemy, built with Java 17, Spring Boot 3, Spring Security 6, and Spring Cloud. This platform follows a microservices architecture, enabling horizontal scaling, independent service deployment, and better fault tolerance.
| Service Name | Port | Responsibility |
|---|---|---|
| API Gateway | 8080 | Central entry point for all client requests, handles routing, auth, CORS, and rate-limiting |
| Eureka Server | 8000 | Service discovery and registration for all microservices |
| Auth Service | 8081 | Handles user registration, login, and JWT token management |
| User Service | 8082 | Manages user profiles, avatars, and additional user metadata |
| Course Service | 8083 | Manages course creation, sections, and lectures (MongoDB backed) |
| Media Service (Presigned URL Generator) | 8084 | Handles media uploads via cloud storage (videos, PDFs) using signed URLs |
| Review Service | 8085 | Allows users to submit reviews and ratings for courses |
| Notification Service | 8087 | Sends emails, SMS, or push notifications using event-driven Kafka messaging |
- Java 17, Spring Boot 3, Spring Security 6, Spring Cloud Netflix
- MongoDB for dynamic and unstructured data (used in
Course Service) - MySQL for relational storage (used in
AuthandUserservices) - OpenFeign for declarative REST clients across services
- JWT Authentication (stateless token-based security)
- Spring Validation with custom error handling
- Swagger / OpenAPI 3 for interactive API documentation
- Docker + Docker Compose for service orchestration
- Kafka for asynchronous event handling and inter-service communication
- Redis for caching (e.g., token blacklisting, frequently accessed content)
- Prometheus + Grafana for monitoring and alerting
- Lombok, MapStruct, AOP Logging, ModelMapper
- Separation of Concerns: Every service has a single, well-defined responsibility.
- Horizontal Scaling: Services can be scaled independently based on demand.
- Stateless Auth: JWT eliminates session management overhead.
- Async Processing: Kafka decouples services for non-blocking operations like notifications.
- Centralized Configuration (Config Server - optional): Externalized and versioned configuration.
- Monitoring & Observability: Prometheus scrapes metrics; Grafana visualizes trends and alerts.
- 🔐 Secure User Registration & Login (JWT + Refresh Token)
- 👤 Complete User Profile Management with Avatar Upload
- 📘 Course Creation with Sections & Lectures (video, PDF)
- 🎥 Media Uploads using Presigned URLs (Cloudinary)
- ✍️ Course Reviews and Ratings System
- 📣 Event-Driven Notification Service (via Email/SMS)
- 📊 Real-time Monitoring with Prometheus & Grafana
- 📄 Full Swagger API Documentation for each service