Published on 4/11/2025 • Categories: microservices, spring cloud, gateway, config server, eureka

Microservices with Spring Cloud: Eureka, Config Server & Gateway

Overview

Spring Cloud provides everything you need for microservices in Java:

Eureka: Service registry
Config Server: Centralized configs
Gateway: Intelligent routing

Spring Cloud Microservices

1. Eureka Setup

java
@EnableEurekaServer
@SpringBootApplication
public class EurekaApp {}

2. Config Server

yaml
spring:
  cloud:
    config:
      server:
        git:
          uri: https://github.com/you/configs

3. API Gateway

yaml
spring:
  cloud:
    gateway:
      routes:
        - id: product-service
          uri: lb://PRODUCT-SERVICE
          predicates:
            - Path=/products/**

Benefits

Dynamic service discovery
Config refresh without redeploy
One entrypoint to the entire system