Building Resilient Microservices with Spring Cloud, Eureka & Resilience4j Circuit Breakers
How to decouple monolithic Java backend services into scalable microservices using Spring Cloud API Gateway, service discovery, and Resilience4j circuit breaking.
Building Resilient Microservices with Spring Cloud, Eureka & Resilience4j Circuit Breakers
Transitioning from a monolithic architecture to microservices provides independence, scalability, and modularity. However, microservices introduce distributed system challenges like service discovery, network latency, and cascading failure propagation.
In this guide, we explore how to build a production-grade microservice mesh using Spring Cloud Gateway, Eureka Service Discovery, and Resilience4j.
Architecture Blueprint
- API Gateway (Port 8080): Single entry point routing traffic, handling CORS, rate limiting, and token validation.
- Eureka Server (Port 8761): Dynamic registry where microservices register their IP and health status.
- Microservices: Order Service, Inventory Service, User Service.
Written by Nilesh Kotkar
Software Engineer & DevOps Engineer specializing in Spring Boot microservices, high-throughput APIs, Docker containerization, and CI/CD pipelines.
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