Hexagonal Architecture isolates your business logic from the outside world using Ports and Adapters. Learn how to invert dependency direction so your core domain stays untouched regardless of what database, framework, or external service you swap in — with TypeScript examples throughout.
A deep dive into Robert C. Martin's Clean Architecture. Learn how to decouple your business logic from frameworks, databases, and UI using Entities, Use Cases, and the Dependency Rule. Includes Screaming Architecture and Testing strategies.
Applying Uncle Bob's Clean Architecture directly to frontend creates unnecessary complexity. Here's a practical, frontend-adapted layering strategy that actually works in production.
As a single model grows complex, reads and writes start tripping each other up. Here's how CQRS solves that problem — from simple separation to full event sourcing, with TypeScript examples throughout.
From simple CRUD to an append-only log of immutable events. We dissect Event Sourcing—the architecture behind scalable financial systems. Learn why it pairs perfectly with CQRS, how to handle the versioning of events (Schema Evolution), and the trade-offs involved in complexity versus auditability.
One sentence summary:
"The core speaks to the world through ports (interfaces), and adapters connect those ports to the real world."
It feels like more files and more interfaces upfront. But the day you hear "we're switching our payment provider" and you only need to create one new adapter file — that's when the investment pays back.
Protecting your core is protecting your business logic.
