The program monitors the insert and update database operations and notifies it's clients via web socket.
It is a plain old Spring Boot application with Maven. So to build the app run mvn install command, it also runs the tests. To start it in development mode run mvn spring-boot:run command.
Insert a generated entity into the sample table with calling http://localhost:8080/sample/save in your browser. This will generate an entity and insert it to the database, also reports the result to the browser.
Update an entity with a given id and generated values call the http://localhost:8080/sample/save/{id}. Note that, if the entity is not presented by the given id, it will create a new entity to insert, but not uses the id.
To monitor insert and update database operations, open http://localhost:8080/activity-monitor in another browser window. While you calling the saving endpoints it will report them.