Redux Architecture

Architecture Overview

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

Good architecture 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.

Architecture Example

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

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

Redux Cheatsheet

Quick Redux Toolkit reference related to architecture.

How Architecture Works in Redux

Architecture 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 Architecture

In modern apps, architecture 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 architecture.
• Not verifying the result of architecture before moving on.
• Over-complicating architecture before you actually need the extra flexibility.
• Ignoring documentation, which makes architecture hard for the next person to follow.

Key Takeaways

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