Now we will create the posts slice to be able to create, store and display posts. Create a new file called `postsSlice.js` in the  `features` folder. We will use the `createSlice` function to create the slice, as we did in the previous chapter.

The [slice](https://pastebin.com/eknAMvzp) will have a `posts` array which will initially be empty, `lastID` state which will have a value of `0` initially, and a `createPost` action which will be used for appending posts (in the form of JS objects) to the array in the store.

We also need to export the action, a selector, and reducer.

```js
export const { createPost } = postsSlice.actions;
export const selectPosts = (state) => state.post.posts;
export default postsSlice.reducer;
```

Now that the export is done, we will import it in the `store.js` to create the slice. The `store.js` should look something like this:

```js
import { configureStore } from '@reduxjs/toolkit';
import profileReducer from '../features/profileSlice';
import postsReducer from '../features/postsSlice';

export const store = configureStore({
  reducer: {
    profile: profileReducer,
    post: postsReducer
  },
});
```

In the next chapter, we will try to make the posting feature functional.


In this section we will learn what Redux is, why it is useful, and most importantly when it is useful. We will also learn how to set up a basic react-redux application.

In this section we will go through the fundamental concepts of Redux that are necessary to understand the workings of a Redux application. We will use code examples to understand the concepts and in the following section we will use them practically.

In the previous section we looked at the basic concepts. In this section we use those basic concepts to understand some more complicated concepts and the structure of a Redux application. In the end we will also look at the Counter application to put together all the pieces of our knowledge together.

This chapter is focused on practice hence we will utilize the knowledge we acquired in previous sections to create a practical application using Redux along with React.