architecture-paradigm-cqrs-es

What problem does it solve?

Collaboration-heavy domains often require robust audit trails, temporal queries, and independent scaling for read/write workloads. This skill guides you in applying CQRS (Command Query Responsibility Segregation) and Event Sourcing.

Core Features & Use Cases

• Aggregate Identification: Specify bounded contexts and command invariants.
• Command & Event Modeling: Define schemas, validation rules, and versioning strategies.
• Write Side Implementation: Commands load event streams, run logic, and append events atomically.
• Projection Building: Separate read models fed by event subscriptions with back-pressure.
• Use Case: Design a collaborative document editing system where every change needs to be auditable, read models can be independently scaled for high query loads, and historical states can be easily rebuilt.

Quick Start

Identify your domain aggregates and model the commands and events that drive state changes in your system.