How to Implement Event-Driven Communication in Java Microservices (Step-by-Step Guide with Kafka)

Learn how to implement event-driven communication in Java microservices using Kafka. Step-by-step guide with real-world e-commerce example and full working code.

I am a bestseller Udemy Instructor. Check out my top 10 Udemy courses with discounts: My Udemy Courses — Ramesh Fadatare.

🔒 This is a Medium member-only article. If you’re not a Medium member, you can read the full article for free on my blog: How to Implement Event-Driven Communication in Java Microservices.

🧾 Introduction

Event-Driven Communication is the backbone of modern, scalable microservices architectures.

✅ Instead of tight synchronous REST calls, services communicate via events asynchronously.
✅ It improves scalability, resilience, and flexibility.

In this guide, you’ll learn how to implement Event-Driven Microservices using Kafka — through a real-world e-commerce example:

✅ Project Setup: E-Commerce Microservices System