Hexagonal Architecture Explained Through a Practical Example
AI Summary
An exploration of hexagonal architecture using a kitchen metaphor to separate core business logic from infrastructure. It details the domain and application layers, the role of domain-driven design (DDD), entities versus value objects, and aggregate roots for managing business invariants.
Key Takeaways
- The domain layer holds business entities and invariants, acting like a recipe book.
- The application layer coordinates workflows without embedding business rules.
- Aggregate roots serve as controlled entry points to protect internal consistency.
Why it matters
Isolating business logic from external frameworks and infrastructure makes applications modular, easier to test, and resilient to third-party system failures.
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