Here is an explanation of how @TransactionalEventListener works, how it's different from a @EventListener, and what threats should be taken into account before using it.
Testing your REST APIs and even calls between microservices are of critical importance. Take a look at a tool that can help make that testing a little easier.
Learn how to debug your processes in containers using the tool of your choice, without having to install the tools. Here you'll find three container debugging methods.