CQRS within Clean Architecture
Learn how Command Query Responsibility Segregation separates write and read models, and how it fits naturally inside Clean Architecture boundaries.
One Model Doing Too Much
As systems grow, a single model that handles both writes and reads often strains.
Writes need rich validation and invariants; reads need fast, shaped data for screens. CQRS splits these concerns.
Commands vs Queries
CQRS divides operations into two kinds:
- Commands change state and return nothing meaningful.
- Queries return data and never change state.
This is the Command-Query Separation principle, scaled to architecture.
All lessons in this course
- Handling Cross-Cutting Concerns
- Event-Driven Clean Architecture
- Clean Architecture in Microservices
- CQRS within Clean Architecture