🛒 E-Commerce Microservices Ecosystem

A distributed, event-driven e-commerce platform built with Spring Boot 3, Apache Kafka, and MySQL, managed as a Dockerized monorepo.

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🏗 Architecture Overview

The system uses a choreographic EDA (Event-Driven Architecture) where services communicate asynchronously via Kafka to ensure high availability and decoupling.

Services & Responsibilities

• Order Service (:8080): Entry point for checkout. Orchestrates order creation and publishes order-placed events.
• Cart Service (:8081): Manages temporary shopping sessions and persists cart data to MySQL.
• Payment Service (:8082): Consumer-only service that processes payments based on Kafka events.
• Infrastructure:
  • Kafka/Zookeeper: Message broker for inter-service communication.
  • MySQL 8.0: Persistent storage with automatic schema generation.

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🛠 Tech Stack

• Backend: Java 17, Spring Boot 3.x, Spring Data JPA
• Messaging: Apache Kafka (Confluent Platform 7.5.0)
• Database: MySQL 8.0
• DevOps: Docker, Docker Compose, Maven

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🚀 Getting Started

1. Prerequisites

• Docker Desktop
• Maven 3.8+ (for local builds)
• Ensure ports 8080, 8081, 8082, 3306, and 9092 are free.

2. Build & Deploy

From the root directory, run the following commands:

# Build the application artifacts
mvn clean package -DskipTests

# Launch the entire stack in detached mode
docker compose up -d --build