CQRS & Event Sourcing with Kafka

Production-grade CQRS implementation with Kafka as the event store. Separate read and write models for scalability.

AdvancedJavaSpring BootKafkaAxon FrameworkMongoDB

🏗️ Architecture Overview

Command side writes events to Kafka. Query side consumes events and builds read models in MongoDB. Axon Framework for CQRS.

// High-level architecture

Java→

Spring Boot→

Kafka

↓ Axon Framework + MongoDB + PostgreSQL

✓Event store with Kafka

✓Separate read/write models

✓Event replay capability

✓Eventual consistency

CQRS fundamentals

Event sourcing

Axon Framework

Kafka Streams

JavaSpring BootKafkaAxon FrameworkMongoDBPostgreSQL

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