Fortune Teller is a very basic application composed of two services:

1. Fortune Service - serves up random Chinese fortune cookie fortunes

2. Fortune UI - presents a UI that consumes the fortune service

It leverages libraries and services from Spring Cloud and Netflix OSS to compose the system.

1. Using Maven, build and package the application:

   $ mvn clean package

   Maven will automatically download all of Fortune Teller's dependencies. This may take a few moments.

1. Start the Config Server

   $ cd fortune-teller-config-server
   $ mvn spring-boot:run

2. Start the Eureka Service

   $ cd fortune-teller-eureka
   $ mvn spring-boot:run

3. Start the Hystrix Dashboard

   $ cd fortune-teller-hystrix-dashboard
   $ mvn spring-boot:run

4. Start the Fortunes Service

   $ cd fortune-teller-fortune-service
   $ mvn spring-boot:run

5. Start the Fortunes UI

   $ cd fortune-teller-ui
   $ mvn spring-boot:run

1. In a browser, access the fortunes-ui application at http://localhost:8081/

   

2. Now, in another browser tab, access the Hystrix Dashboard at http://localhost:7979/hystrix/. Enter the route for the UI application, http://localhost:8081/hystrix.stream, and click the ``Monitor Stream.''

   

3. Access the fortunes-ui and show that the circuit breaker is registering successful requests.

   

4. Stop the fortunes application

5. Access the fortunes-ui and see that the ``fallback fortune'' is being returned.

   

6. Access the fortunes-ui and show that the circuit breaker is registering short-circuited requests.

   

7. Restart the fortunes application

8. Continue to access the fortunes-ui and watch the dashboard. After the fortunes service has re-registered with Eureka and the fortunes-ui load balancer caches are refreshed, you will see the circuit breaker recover. You should then start getting random fortunes again!