Why use domain events?
Nota bene: this instalment in the Ports and Adapters with Command Handlers series is code-heavy, and isn't going to make much sense unless you've read the »
Commands and Queries, Handlers and Views
In the first and second parts of this series I introduced the Command-Handler and Unit of Work and Repository patterns. I was intending to write about »
Repository and Unit of Work Pattern in Python
In the previous part of this series we built a toy system that could add a new Issue to an IssueLog, but had no real behaviour »
Ports and Adapters with Command Handler pattern in Python
The term DDD comes from the book by Eric Evans: "Domain-Driven Design: Tackling Complexity in the Heart of Software". In his book he describes »