Spring boot microservice example with Eureka Server + Eureka Client + Spring Cloud API Gateway + OAuth2.0 + Circuit Breaker + Resilience4J + FeignClient + RestTemplate
- Eureka Server : Eureka service registry
- Spring Cloud API Gateway: API Gateway which is responsible to route the request to specific microservice
- Spring OAuth2.0: Authentication service and responsible to secure the end points.
- Eureka Client
- Generate OAuth token
- Validate the OAuth token
- User Service: User microservice with a basic feature
- Eureka Client
- OAuth2.0 Client
- Supports RestTemplate Client
- Supports Resilience4J circuit breaker
- Use of Resilience4J circuit breaker with RestTemplate
- Swagger Document - https://localhost:8181/swagger-ui/index.html
- Order Service: Order microservice with a basic feature
- Eureka Client
- OAuth2.0 Client
- Supports FeignClient Client
- Supports Resilience4J circuit breaker
- Use of Resilience4J circuit breaker with FeignClient
- Swagger Document - https://localhost:8282/swagger-ui/index.html
- Notification Service: Notification microservice with basic feature
- Eureka Client
- OAuth2.0 Client
- Swagger Document - https://localhost:8383/swagger-ui/index.html
> git clone https://github.com/subhashlamba/spring-microservices.git
> cd spring-boot-microservices-examplemvn clean install -f .\spring-boot-cloud-eureka-server\pom.xml
mvn clean install -f .\spring-boot-cloud-zuul-routing\pom.xml
mvn clean install -f .\spring-boot-cloud-eureka-user-service\pom.xml
mvn clean install -f .\spring-boot-cloud-eureka-order-service\pom.xml
mvn clean install -f .\spring-boot-cloud-eureka-notification-service\pom.xml
mvn clean install -f .\spring-boot-cloud-authentication-service\pom.xml
START "Server" java -jar spring-boot-cloud-eureka-server/target/eureka-server.jar
START "API Gateway" java -jar spring-boot-cloud-zuul-routing/target/zuul-api-gateway.jar --server.port=8080
START "User Service" java -jar spring-boot-cloud-eureka-user-service/target/user-service.jar --server.port=8181
START "Order Service" java -jar spring-boot-cloud-eureka-order-service/target/order-service.jar --server.port=8282
START "Notification Service" java -jar spring-boot-cloud-eureka-notification-service/target/notification-service.jar --server.port=8383
START "Authentication Service" java -jar spring-boot-cloud-authentication-service/target/authentication-service.jar --server.port=8484
Eureka server is running 8761 port, Now let's open it. Where we can check following instances are running:
- 1 instance of API Gateway service
- 1 instance of User service
- 1 instance of Order service
- 1 instance of Authentication service
- 1 instance of Notification service
Eureka server : https://localhost:8761/
1. Download the [https://zipkin.io/pages/quickstart] Download zipkin
2. Start zipkin using following command:
java -jar zipkin-server-2.23.2-exec.jar
3. Open zipkin server : [https://localhost:9411/](https://localhost:9411/)
curl -X POST \
https://localhost:8080/oauth/token \
-H 'authorization: Basi