Redux Installation

Getting Started with Redux: Core Concepts and Setup

5 min read

  • January 18, 2025
  • Yogesh Sharma

Redux is a predictable state management library that helps manage global state in React applications. In this blog, we’ll go through the core concepts of Redux and how to set it up in a React project.

1. Core Concepts of Redux

Redux revolves around a few key principles that make state management predictable and maintainable.

Single Source of Truth

The entire state of an application is stored in a single object tree inside a Redux store.

State is Read-Only

State can only be modified by dispatching actions. This ensures predictable updates and avoids direct mutations.

Changes are Made with Pure Functions

Reducers specify how state changes in response to actions. They must be pure functions, meaning they return a new state without modifying the existing state.

2. Setting Up Redux in a React Application

To use Redux in a React project, install the necessary dependencies:

Creating a Redux Store

This sets up a Redux store using configureStore from Redux Toolkit.

Creating a Slice

A slice contains a reducer and associated actions.

Providing the Store to React

To connect Redux with React, wrap the application in a Provider:

This allows any component in the app to access the Redux store.

3. Using Redux State in Components

To read and update Redux state, use useSelector and useDispatch from React Redux.

Conclusion

Redux provides a predictable way to manage state in large applications. By understanding its core principles and setting up Redux Toolkit, developers can simplify state management in React projects. In the next blog, we’ll explore Understanding Actions, Reducers, and Middleware in Redux to dive deeper into handling state changes efficiently. has context menu