https://nikhilcad.github.io/tags/spring-boot/ Recent content in Spring Boot on Nikhil Kadiyan https://nikhilcad.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E https://nikhilcad.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E Hugo -- 0.124.0 en Sun, 18 Oct 2026 00:00:00 +0000 https://nikhilcad.github.io/projects/event-driven-order-platform/ Sun, 18 Oct 2026 00:00:00 +0000 https://nikhilcad.github.io/projects/event-driven-order-platform/ Designed a distributed order-processing system using Java, Spring Boot, and Apache Kafka, decoupling order creation, inventory reservation, and payment processing through asynchronous event-driven workflows. Implemented a Transactional Outbox pattern with PostgreSQL to prevent database updates and event publishing from becoming inconsistent, with idempotent consumers to safely handle duplicate message delivery. Built Saga-based failure recovery with retry policies, dead-letter topics, and compensating transactions to handle partial failures across distributed services without relying on a global database transaction.