Common Redux Mistakes That Make React State Hard to Manage

Common Redux Mistakes That Make React State Hard to Manage

Redux has a predictable set of beginner mistakes that make state harder to manage than it needs to be. Here are the most common ones.

Selecting Too Much State

Using useSelector to select a large object when you need one field causes re-renders whenever any part changes. Select only the specific data you need.

Mutating State in Reducers

Reducers must be pure. Mutating state directly can cause bugs, although RTK uses Immer internally so you can write mutating-looking code safely. Know which you are using.

Putting Everything in Redux

Not all state belongs in Redux. UI state like a modal open flag often belongs in local component state. Reserve Redux for genuinely shared, complex state.

Not Using RTK

Writing classic Redux by hand in a new project. Use Redux Toolkit, which removes the boilerplate and is the official recommendation.

Dispatching in Render

Dispatching actions during render causes infinite loops. Dispatch in event handlers or effects, never in the render body.

Over-Asyncing

Using Redux for every async call when a simple useEffect would do. Redux is for shared state, not a replacement for all data fetching.

Bad Slice Organization

Putting unrelated state in one slice, or splitting related state across many. Organize slices by feature, with related state together.

The Takeaway

Common Redux mistakes include selecting too much state, mutating reducers, putting everything in Redux, not using RTK, dispatching in render, over-asyncing, and bad slice organization. Avoid these and Redux stays manageable.