NailTocToc MSA Backend

Overview

MSA-based backend platform for nail printing service

Highlights

1. MSA Architecture

   Domain-based separation into 7 microservices (Gateway, User, Product, Order, Payment, Admin, Worker)

2. Troubleshooting

   read queries contended with write transactions under order spikes and raised latency — split PostgreSQL into read/write replicas and routed reads accordingly to distribute the read load

3. API Gateway

   Authentication/authorization, routing, load balancing via Spring Cloud Gateway

4. Infrastructure

   AWS EKS Kubernetes cluster operation, codified with Terraform IaC

5. CI/CD

   ArgoCD GitOps Blue-Green deployment with zero-downtime and automatic rollback

6. Message Queue

   RabbitMQ async processing reducing inter-service coupling

7. DB Optimization

   PostgreSQL Read/Write Replica separation for read load distribution