SmartMall Discounted Electronic Shopping

Introduction

A Spring Boot 3-powered, fully dockerized microservices application. [Code]

Overall Structure

Key services

• API Gateway (Spring Cloud)
• Service Discovery (Netflix Eureka)
• Inventory Service
• Notificaiton Service
• Order Service
• Product Service
• [TODO] Cart Service
• [TODO] Payment Service
• [TODO] Membership/Discount Service

Key Features & Technology

• Data Storage: MongoDB + PostgreSQL + Hibernate
• IPC: RestTemplate + WebClient
• Gateway: Spring Cloud Gateway
• Service Registration & Discovery: Netflix Eureka
• Security: Keycloak + JWT
• Inter-service Communication: Kafka (Event-driven, asynchronous) + Resilience4J (Circuit Breaker, fault tolerance)
• Distributed Tracing: Zipkin + Sleuth
• Containerization: Docker + [TODO] Kubernetes
• Monitoring: Grafana + Prometheus
• Logging: Lombok SLF4J