A clean architecture implementation of an e-commerce system using NestJS, CQRS, and Domain-Driven Design principles.
This project demonstrates a microservices-based e-commerce platform with clear separation of concerns through:
- Clean Architecture with distinct layers
- CQRS (Command Query Responsibility Segregation) for scalable read/write operations
- Domain-Driven Design principles for business logic organization
- Event-driven communication between bounded contexts
- Saga Choreography for distributed transaction management
- User Management - User registration, authentication, and profile management
- Product Catalog - Product creation, updates, and inventory management
- Order Processing - Order lifecycle with saga-based orchestration
- Notifications - Event-driven messaging system
- Shipping - Delivery management and tracking
- Marketing - Campaigns and promotions
- Analytics - Business intelligence and reporting
- Stock Data Integrity - Saga choreography ensures consistent inventory management
- Event Sourcing - Complete audit trail of domain events (TODO)
- Scalable Architecture - Independent scaling of read/write operations
- Type Safety - Full TypeScript implementation
- Clean Boundaries - Clear separation between domains
The order processing implements a saga choreography pattern that guarantees data consistency across multiple services:
- Order Creation → Validates customer and initiates process
- Stock Reservation → Ensures product availability
- Order Confirmation → Confirms successful reservation
- Notification Dispatch → Sends confirmation emails
- Compensation → Automatic rollback on failures
Currently supports in-store payments only. Online payment integration planned for future releases.
# Clone the repository
git clone <repository-url>
# View Readme in /server for detailsThis project serves as a reference implementation for clean architecture principles in NestJS. Contributions and discussions are welcome!
Built with ❤️ using NestJS, TypeScript, and Clean Architecture principles