You can access the following URLs after start up:
http://localhost:8081/topics
http://localhost:8081/topics/java/courses
http://localhost:8081/topics/java/courses/java-streams/lessons/java-intro
http://localhost:8081/topics/scala/courses/scala-for-impatient/lessons/scala-intro
Also, actuator is available:
http://localhost:9001/health
http://localhost:9001/metrics
http://localhost:9001/trace