---
title: Extract State Logic to Redux
---
## Extract State Logic to Redux

This is a stub. <a href='https://github.com/freecodecamp/guides/tree/master/src/pages/certifications/front-end-libraries/react-and-redux/extract-state-logic-to-redux/index.md' target='_blank' rel='nofollow'>Help our community expand it</a>.

<a href='https://github.com/freecodecamp/guides/blob/master/README.md' target='_blank' rel='nofollow'>This quick style guide will help ensure your pull request gets accepted</a>.

<!-- The article goes here, in GitHub-flavored Markdown. Feel free to add YouTube videos, images, and CodePen/JSBin embeds  -->

Suggested solution: 

```javascript
const ADD = 'ADD';

function addMessage(message) {
  return {
    type: ADD,
    message: message
  };
};

function messageReducer (previousState, action) {
  return [...previousState, action.message];
}

let store = {
  state: [],
  getState: () => store.state,
  dispatch: (action) => {
    if (action.type === ADD) {
      store.state = messageReducer(store.state, action);
    }
  }
};
```