SpringBoot event driven ECommerce

This demo showcases an event-driven eCommerce system built with Spring Boot, designed for scalability, resilience, and loose coupling between services.

The application follows an asynchronous architecture where core workflows such as order creation, payment processing, and inventory updates are handled through domain events. This approach ensures that each component can evolve independently while maintaining consistency across the system.

Key highlights:

* Event-driven communication between services using asynchronous messaging
* Idempotent order processing to prevent duplicate transactions
* Distributed locking with PostgreSQL advisory locks to ensure consistency under concurrent requests
* Clear separation of concerns across order, payment, and inventory domains
* Fault-tolerant design with retry and failure handling strategies

The demo walks through a complete order lifecycle, demonstrating how events flow through the system and how concurrency and reliability challenges are handled in a real-world scenario. Receive SMS online on sms24.me

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