In an event-sourced architecture, the entire history of changes to the application’s state is stored as a sequence of events. However, to effectively work with this data, we often need optimized read models. This is where projections come into play. In today’s post, I’ll show you how to set up and implement projections in Ecotone, allowing you to easily transform events into the current state of your system.

Domain-Driven Design is an approach that helps build software reflecting real-world business logic. Within DDD, we distinguish building blocks – essential elements of domain modeling. Here’s their breakdown and application.