Clean Architecture and Separation of Concerns

React clean architecture separates business logic from UI concerns, making applications more testable, maintainable, and scalable. The principle is simple: your core domain logic should not depend on React; instead, React components consume and orchestrate that logic through well-defined boundaries. This series teaches you how to architect React applications using layered and hexagonal (ports-and-adapters) patterns, custom hooks as logic containers, dependency injection via Context, and repository abstractions—all designed to keep your codebase flexible as requirements change.

Whether you're maintaining a single-page application or growing a complex dashboard, understanding clean architecture prevents the common pitfall of tightly coupling business rules to React component lifecycle. You'll learn to test your use cases in isolation, swap data sources without touching UI code, and onboard new developers to a clear, predictable structure. This series progresses from foundational separation principles through advanced patterns like hexagonal architecture and repository layers, providing working examples at every step.

Articles in this series

• React Clean Architecture: Why Separate Concerns?
• Folder Structure: Organizing React for Scale
• Domain Logic vs UI: The Core Principle
• Custom Hooks: Containers for Business Logic
• Context API: Inversion of Control in React
• Layered Architecture: Building React Apps
• Hexagonal Architecture for React: Ports and Adapters
• Testing Domain Logic Independent of React
• Repository Pattern in React: Data Abstraction
• Building Scalable React Apps: Full Architecture Walk