Microservices introduce challenges that don't exist in a traditional monolithic application: service discovery, inter-service communication, centralized configuration, API routing, and distributed failures.
In this tutorial, we build a small e-commerce-style microservice architecture with Java 21, Spring Boot, and Spring Cloud.
We'll create:
- Product Service
- Order Service
- Eureka Server
- API Gateway
Then we'll add:
- Service discovery with Eureka
- Inter-service communication with OpenFeign
- API routing with Spring Cloud Gateway
- Centralized configuration with Spring Cloud Config
- Circuit breakers with Resilience4j
- Monitoring with Spring Boot Actuator
- Docker containerization
The tutorial also covers production considerations, including database ownership, security, observability, health checks, scaling, API versioning, and avoiding distributed-monolith patterns.
🔗 Read the complete tutorial:
https://www.djamware.com/post/how-to-build-a-microservice-in-java-with-spring-cloud
