[question] Purpose of H2

[archenroot]

Hi buddy,

first of all thanks for this example. what is the purpose of H2 database here? Is it for purpose of application cache like engine?

I was more considering directly streaming messages to the screens from message broker. Note that I am adopter of Saga, Audit, Event Sourcing and CQRS patterns in microservices architecture.

I am interested in use case with H2 here, I think it is not required when you fully adopt Asynchronous architecture.

Thanks.