advanced~2h
CQRS (Command Query Responsibility Segregation)
One model for both reading and writing data works fine until reads and writes want completely different shapes, or completely different scale. This module is what happens when you finally split them.
Learning objectives
- Beginner: Explain the difference between a command and a query in CQRS terms.
- Intermediate: Describe why a write model and a read model might use entirely different data stores.
- Advanced: Explain how CQRS's read/write split interacts with eventual consistency between the two sides.
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CQRS (Command Query Responsibility Segregation)