Redux - Basics

Basics Overview

At its core, basics is about doing one thing well in Redux. Once you understand the pattern, you can apply it consistently across projects and teams.

Good basics pays off across the whole project: fewer surprises, easier collaboration, and smoother onboarding. The snippet below is a solid starting point.

import { configureStore } from '@reduxjs/toolkit';
import { Provider } from 'react-redux';

const store = configureStore({ reducer: rootReducer });

function App() {
  return (
    <Provider store={store}>
      <Root />
    </Provider>
  );
}

A Provider makes the single Redux store available to every component in the tree.

Basics Example

const slice = createSlice({ name, initialState, reducers });
const store = configureStore({ reducer: { key: slice.reducer } });
// dispatch(slice.actions.something())

• Start from a minimal Basics example and grow it only as needed.
• Keep things explicit so Basics behaves the same for everyone on the team.
• Name things clearly so teammates understand your Basics at a glance.
• Verify Basics works as expected before relying on it in important work.

Redux Cheatsheet

Quick Redux Toolkit reference related to basics.

How Basics Works in Redux

Basics follows Redux's predictable data flow: components dispatch actions, reducers compute the next state from the previous state and the action, and subscribed components re-render.

A Provider makes the single Redux store available to every component in the tree.

• State lives in a single, read-only store.
• Actions are the only way to describe a change.
• Reducers are pure functions that return the next state.
• Redux Toolkit removes most boilerplate with slices and thunks.

Practical Guidance for Basics

In modern apps, basics should use Redux Toolkit rather than hand-written Redux. Keep state minimal, colocate logic in slices, and use RTK Query for server data.

Common Mistakes

• Skipping edge cases and error handling when using basics.
• Not verifying the result of basics before moving on.
• Over-complicating basics before you actually need the extra flexibility.
• Ignoring documentation, which makes basics hard for the next person to follow.

Key Takeaways

• Basics is a core part of working effectively with Redux.
• Start small and keep basics focused on a single goal.
• Apply consistent patterns so basics scales across your project.
• Practise and document basics to keep your workflow maintainable.