How to use Reducer in React for better State Management: 2 effective ways for simpler design and architecture

Using multiple useState hooks for related values makes React components harder to maintain, more cluttered, and more bug-prone. The post recommends grouping related state in a single object with useReducer, so state updates stay centralized and the component stays easier to read.

It also warns against exposing reducer internals directly in components. Instead, it suggests wrapping the reducer in a deep custom hook that hides dispatch details, separates state logic from UI, and leaves components with a cleaner interface.

Reading notes

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• Related state variables should not be split across several useState hooks when they belong together.
• Multiple useState hooks for connected data make updates harder to trace and increase the risk of bugs.
• useReducer groups related state into one object managed by a reducer function.
• Centralizing the state logic makes the code more organized and easier to follow.
• A shallow hook that exposes reducer details creates tight coupling between state management and UI components.
• Exposing action types and payload handling inside components makes them more complex and less reusable.
• A deep custom hook can hide reducer implementation details and expose only the needed interface.
• Encapsulating the reducer inside a custom hook separates state logic from the UI and keeps components focused on rendering.
• The article presents this approach as aligned with SRP, DIP, and ISP.