Event-Driven Microservices

A hands-on playground for experimenting with event-driven communication using Apache Kafka.

Overview

This repository explores event-driven microservices patterns. It demonstrates how microservices can collaborate asynchronously using events, without tight coupling.

Orchestration

cd choreography/docker
docker compose up -d

NGINX was added to handle SSL termination in front of the gateway!

CQRS

cd cqrs/docker
ISSUER_URI=<issuerUri> docker compose up -d

Some additional features were added:

• Use Redis in production and ConcurrentHashmap in development to cache query-ms responses.
• Apply Rate Limiting using Bucket4j. Redis is used in production, while Caffeine is used in development/testing.
• Protect the gateway and downstream services using OAuth2 Resource Server.
• NGINX handles SSL termination in front of the gateway.
• Add OpenAPI + Swagger Support.
• The ISSUER_URI variable must be provided in Docker Compose.

SAGA

SAGA Orchestration pattern is on the works!