Spring boot microservice example Build Status
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 - http://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 - http://localhost:8282/swagger-ui/index.html
- Notification Service: Notification microservice with basic feature
- Eureka Client
- OAuth2.0 Client
- Swagger Document - http://localhost:8383/swagger-ui/index.html
> git clone https://github.com/subhashlamba/spring-microservices.git > cd spring-boot-microservices-example
mvn 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 : http://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 : [http://localhost:9411/](http://localhost:9411/)
curl -X POST \ http://localhost:8080/oauth/token \ -H 'authorization: Basic amF2YWRldmVsb3BlcnpvbmU6c2VjcmV0' \ -H 'cache-control: no-cache' \ -H 'content-type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW' \ -H 'postman-token: d2629b30-a7cf-fa72-df64-d71118afb549' \ -F grant_type=password \ -F username=zone1 \ -F password=mypassword
In the swagger UI, There is a "Autorize" button on the top, click on it it will open the following popup:
Use the following information
Username: zone1
Password: mypassword
ClientId: javadeveloperzone
Secret: secret
Output
{
"access_token": "imdUX2_t_WQLSTUlaLBTjVyHUTg",
"token_type": "bearer",
"refresh_token": "zLufOQtLQO1u-8JP7KN64Dsc3wc",
"expires_in": 522,
"scope": "read write"
}curl -X POST \
http://localhost:8080/user/ \
-H 'authorization: Bearer imdUX2_t_WQLSTUlaLBTjVyHUTg' \
-H 'cache-control: no-cache' \
-H 'content-type: application/json' \
-H 'postman-token: d73bb63f-969c-4081-1dee-77fa2b0f1f5a' \
-d '{"firstName":"subhash", "lastName": "Lamba"}'
curl -X POST \
http://localhost:8080/order/ \
-H 'authorization: Bearer DF977lxKiBzdWKTkZsE7XevqK40' \
-H 'cache-control: no-cache' \
-H 'content-type: application/json' \
-H 'postman-token: 2256b83e-30dc-3b8e-26f0-8d13c0dcfd44' \
-d '{"userId":1, "orderDate": "2021-01-01"}'
curl -X GET \
http://localhost:8080/user/1 \
-H 'authorization: Bearer DF977lxKiBzdWKTkZsE7XevqK40' \
-H 'cache-control: no-cache' \
-H 'content-type: application/json' \
-H 'postman-token: 5163fb23-f54f-c793-9faa-e9df54eab9d5' \
-d '{"userId":1, "orderDate": "2021-01-01"}'
{
"user": {
"id": 1,
"firstName": "subhash",
"lastName": "Lamba"
},
"orders": [
{
"id": 5,
"orderDate": "2021-01-01T00:00:00.000+00:00",
"userId": 1
}
]
}