🚀 CQRS-Based Microservice with Spring Boot 3 & Axon Framework

📌 Project Overview

This project implements a CQRS-based microservice using:

• Java 21 & Spring Boot 3 ⚡️
• Axon Framework for Event Sourcing 📜
• JPA & PostgreSQL for persistence 🗄️
• Docker for containerization 🐳
• Hexagonal Architecture, DDD, and ATDD for clean code & scalability ✅
• Swagger for API documentation 📝

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🏗️ Architecture

Hexagonal Architecture

• Ports & Adapters approach for better separation of concerns
• Application, Domain, and Infrastructure layers to enforce modularity
• Designed following Domain-Driven Design (DDD) principles

CQRS & Event Sourcing

• CQRS (Command Query Responsibility Segregation) for better scalability
• Event Sourcing ensures the system retains full audit trails
• Axon Framework for managing commands, queries, and events

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⚙️ Tech Stack

Technology	Version
Java	21
Spring Boot	3.x
Axon Framework	Latest
PostgreSQL	15+
Docker	Latest
Swagger	Latest

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🚀 Getting Started

1️⃣ Prerequisites

Ensure you have the following installed:

• JDK 21
• Docker (for running PostgreSQL and Axon Server)
• Maven
• Spring Boot CLI (optional)