CQRS Implementation Command Query Responsibility Segregation for scalable architectures. Architecture Command Infrastructure Query Infrastructure FastAPI Integration Read Model Synchronization Eventual Consistency Best Practices 1. Separate command and query models - Different optimization needs 2. Accept eventual consistency - Define acceptable lag 3. Validate in command handlers - Before state change 4. Denormalize read models - Optimize for queries 5. Version your events - For schema evolution When to Use CQRS Good for: - Different read/write scaling needs - Complex query requirements - Ev…