Set Validation in CQRS
Force that data in! Set validation is a problem with any architecture, but particularly with CQRS because
The Definition of “Event” has changed
When getting started with Event Driven Architectures, I often hear people confuse Messages and Events (What’s the difference?), but
Difference Between Event and Message
Those new to Event Driven Architectures often treat the words “events” and “messages” as interchangeable. Though they have a lot
The Best Way to Share Data Among Bounded Contexts
When first learning Domain Driven Design it is common to run into problems in data sharing. Domain Driven Design recommends
Logger Injection vs Static Logging
When deciding how to log messages from an application it can be tempting to use the static logger offered by
Migrating a Legacy System to CQRS
One of the most difficult parts of migrating an existing legacy system to DDD and CQRS is keeping all the
Testing EDA is Less Expensive than you Think
If you want to start trying out Even Driven Architecture to see if it’s right for you, you may be
Should a Repository Log Exceptions
I recently had a question about whether a repository should log exceptions that occur during DB updates. We have a
DDD is not Architecture
In some recent discussions with potential clients, they've told me that one of their goals for their project was to