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spring-cloud-netflix-demo's Introduction

Sample Credit Card application eco-system

This branch contains the new stack demo. To see the same demo with Spring-Cloud-Netflix stack, check out the branch old-stack.

After running all the apps execute POST at localhost:9080/application passing cardApplication.json as body.

http POST localhost:9080/application < cardApplication.json
ab -p cardApplication.json -T application/json -c 10 -n 20000 http://localhost:9080/application
  • new card applications registered via card-service
  • user registered via user-service
  • fraud-service called by card-service and user-service to verify card applications and new users

If you want to run a bigger number of requests, you can use the ab benchmarking tool:

ab -p cardApplication.json -T application/json -c 10 -n 20000 http://localhost:9080/application
http GET localhost:9083/ignored/test
http GET localhost:9083/ignored/test/allowed
  • ignored service with test endpoint returning 404 via Proxy and /test/allowed endpoint returning response from the service.
+-------+                         +-------------+       +-------------+          +-------+             +---------------+ +-----------------+ +-------+
| User  |                         | CardService |       | UserService |          | Proxy |             | FraudVerifier | | IgnoredService  | | PRoxy |
+-------+                         +-------------+       +-------------+          +-------+             +---------------+ +-----------------+ +-------+
    |                                    |                     |                     |                         |                  |              |
    | Register application               |                     |                     |                         |                  |              |
    |----------------------------------->|                     |                     |                         |                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    | Create new user     |                     |                         |                  |              |
    |                                    |------------------------------------------>|                         |                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |                     |     Create new user |                         |                  |              |
    |                                    |                     |<--------------------|                         |                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |                     | Verify new user     |                         |                  |              |
    |                                    |                     |-------------------->|                         |                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |                     |                     | Verify new user         |                  |              |
    |                                    |                     |                     |------------------------>|                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |                     |                     |           User verified |                  |              |
    |                                    |                     |                     |<------------------------|                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |                     |       User verified |                         |                  |              |
    |                                    |                     |<--------------------|                         |                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |        User created |                     |                         |                  |              |
    |                                    |<--------------------|                     |                         |                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |                     |                     |                         |                  | User created |
    |                                    |<------------------------------------------------------------------------------------------------------|
    |                                    |                     |                     |                         |                  |              |
    |                                    | Verify card application                   |                         |                  |              |
    |                                    |-------------------------------------------------------------------->|                  |              |
    |                                    |                     |                     |                         |                  |              |
    |                                    |                     |                     Card application verified |                  |              |
    |                                    |<--------------------------------------------------------------------|                  |              |
    |                                    |                     |                     |                         |                  |              |
    |        Card application registered |                     |                     |                         |                  |              |
    |<-----------------------------------|                     |                     |                         |                  |              |
    |                                    |                     |                     |                         |                  |              |

+-------+                         +-------+         +-----------------+
| User  |                         | Proxy |         | IgnoredService  |
+-------+                         +-------+         +-----------------+
    |                                 |                      |
    | IgnoredService/Test             |                      |
    |-------------------------------->|                      |
    |                                 |                      |
    |                             404 |                      |
    |<--------------------------------|                      |
    |                                 |                      |
    | IgnoredService/Test/Allowed     |                      |
    |-------------------------------->|                      |
    |                                 |                      |
    |                                 | Get allowed          |
    |                                 |--------------------->|
    |                                 |                      |
    |                         Allowed |                      |
    |<--------------------------------|                      |
    |                                 |                      |

Setup using new stack

Client side load-balancing using LoadBalancerClient

  • Ribbon used via @LoadBalanced WebClient
  • Ribbon configuration modified via @LoadBalancerClient

Apps communicating via Gateway:

  • Routes have to be explicitly defined
  • Possibility to configure routes either via properties or Java configuration
  • All headers passed by default
  • Routes matched using predicates, requests modified using filters

Spring Cloud Circuit Breaker + Resilience4J

  • Interactions defined using injected CircuitBreakerFactory via the create() method
  • HTTP call and fallback method defined
  • Circuit breaker configuration modified in Customizer<CircuitBreaker bean in a @Configuration class
  • Resilience4J used underneath

Micrometer + Prometheus

  • HTTP traffic monitoring using Micrometer + Prometheus
  • Added a Micrometer's Timer to VerificationServiceClient

spring-cloud-netflix-demo's People

Contributors

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spring-cloud-netflix-demo's Issues

Needed to add the Plugins Element

spring-cloud-netflix-demo/user-service/pom.xml

Line 97 in 7956f3d

Thanks for your great presentation at SpringOne!

I had to add the following pluginRepositories block to resolve sb rc mvn plugin after a fresh git clone ./scripts/runAll.sh

      <pluginRepositories>
		<pluginRepository>
			<id>spring-milestones</id>
			<name>Spring Milestones</name>
			<url>https://repo.spring.io/milestone</url>
		</pluginRepository>
	</pluginRepositories>```

Error when running applicaiton

Hi,

I tried to use application from branch: "non-reactive-new-stack" but after starting following services:

CardServiceApplication :9080/
EurekaServerApplication :8761/
FraudVerifierApplication :9981/
GatewayProxyApplication :9083/
IgnoredServiceApplication :9084/
UserServiceApplication :9082/

and running command:

curl -X POST -H "Content-Type: application/json" -d @cardApplication.json localhost:9080/application

I'm getting following error:

2022-06-14 12:03:40.100 DEBUG 6308 --- [nio-9080-exec-5] o.s.web.client.RestTemplate              : Response 500 INTERNAL_SERVER_ERROR
org.springframework.web.client.HttpServerErrorException$InternalServerError: 500 Internal Server Error: "{"timestamp":"2022-06-14T16:03:40.093+00:00","path":"/user-service/registration","status":500,"error":"Internal Server Error","requestId":"9442251c-1, L:/172.20.100.207:9083 - R:/172.20.100.207:62249"}"
	at org.springframework.web.client.HttpServerErrorException.create(HttpServerErrorException.java:100)
	at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:170)
	at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:122)
	at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
	at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:819)
	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:777)
	at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:711)
	at org.springframework.web.client.RestTemplate.postForEntity(RestTemplate.java:468)
	at io.github.olgamaciaszek.cardservice.user.UserServiceClient.registerUser(UserServiceClient.java:33)
	at io.github.olgamaciaszek.cardservice.application.CardApplicationService.registerApplication(CardApplicationService.java:29)
	at io.github.olgamaciaszek.cardservice.application.CardApplicationController.apply(CardApplicationController.java:28)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1722)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:834)

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