Kafka Order Processing System

A real-world event-driven backend system built using Core Java 21, Apache Kafka (KRaft mode), and PostgreSQL (Docker).

This project demonstrates how modern distributed systems process orders asynchronously using Kafka without blocking services.

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🚀 Tech Stack

• Java 21
• Apache Kafka (KRaft mode – no ZooKeeper)
• Maven
• PostgreSQL (Docker)
• Jackson (JSON serialization)

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🧠 Project Overview

In modern e-commerce systems (like Amazon, Flipkart, or Swiggy), when a user places an order:

• The order must be processed
• Inventory should be updated
• An audit log should be stored
• Notifications should be sent

All of this should happen asynchronously, without blocking each other. This project demonstrates a real-world, event-driven system using Kafka.

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