Java Spring Boot application implementing JMS and ActiveMq to track and persist application events in the database.

a) Microservice1 . event-tracker: Spring Boot application/microservice consisting of a REST API endpoint to send event messages to a queue.(Test-1)

b)event-processor: Spring Boot application/microservice which is consuming messages from the queue and persisting events int the database.(Test-2)

Queue implemented using ActiveMQ.

1. clone the project.

2. Install postgres: brew install postgres.

3. Start postgres server pg_ctl -D /usr/local/var/postgres start

4. psql postgres and CREATE ROLE username WITH LOGIN PASSWORD 'quoted password';.

5. ALTER ROLE username CREATEDB;.

6. createdb event;

7. Install activemq brew install activemq. It will run on the default port 61616. Go to http://localhost:8161/admin/ to view the web console.

8. go to the project directory in a new terminal. cd event-tracker.

9. Run mvn clean install to check whether it compiles correctly. Then run mvn clean spring-boot run . This will start the event tracker application/microservice which pushes event to the queue.

10. Go to http://localhost:8090/swagger-ui.html to view the UI of the REST API. (Post endpoint)

11. Populate the request parameters and execute the request.

12. Check queue status EventTrackingQueue in the web console http://localhost:8161/admin/. You will the see the pending message which is not consumed yet in the Queues section.

13. Now in the project structure change directory to event-processor module. This microservice consumes the pending message in the queue and persists it in the event table of postgres db setup earlier.

14. mvn clean install and mvn clean spring-boot run Look at the event message in the console logs.

15. Check ActiveMq web cosole the pending message should be consumed.

16. Check event table ----> the message will be peristed.

Message redelivery option configured in parent project event-tracker > application.properties (maximumRedeliveries=1).