Pagination is an essential feature for many web applications, allowing users to navigate through a large dataset by displaying a subset of the data at a time. In this blog post, we will explore how to implement pagination using Redux and the React Paginate component.

Setting up Redux

Before diving into pagination implementation, make sure you have Redux set up in your React application. If you are new to Redux, you can refer to the Redux documentation or follow a beginner-friendly tutorial to get started.

Installing React Paginate

To use the React Paginate component, we need to install it as a package in our project. Open your terminal and run the following command:

npm install react-paginate

Creating the Pagination Component

Next, let’s create a Pagination component that will be responsible for rendering the pagination UI and dispatching actions to update the current page in our Redux store.

import React from 'react';
import { useDispatch, useSelector } from 'react-redux';
import ReactPaginate from 'react-paginate';
import { setPage } from 'path/to/paginationSlice';

const Pagination = () => {
  const dispatch = useDispatch();
  
  const currentPage = useSelector(state => state.pagination.currentPage);
  const totalPages = useSelector(state => state.pagination.totalPages);
  
  const handlePageChange = (selected) => {
    dispatch(setPage(selected.selected + 1));
  }
  
  return (
    <ReactPaginate
      previousLabel={'<'}
      nextLabel={'>'}
      breakLabel={'...'}
      pageCount={totalPages}
      marginPagesDisplayed={2}
      pageRangeDisplayed={5}
      onPageChange={handlePageChange}
      forcePage={currentPage - 1}
      containerClassName={'pagination'}
      activeClassName={'active'}
    />
  );
}

export default Pagination;

In the code above, we import the necessary dependencies and Redux hooks, useSelector and useDispatch. We then define the Pagination component.

Inside the component, we retrieve the current page and total number of pages from the Redux store using the useSelector hook.

The handlePageChange function dispatches the setPage action, passing in the newly selected page as the payload.

Finally, we render the React Paginate component, passing in the necessary props such as previousLabel, nextLabel, pageCount, marginPagesDisplayed, and pageRangeDisplayed. We also set the currentPage using forcePage prop, add CSS class names for styling, and bind the onPageChange event to our handlePageChange function.

Updating the Redux Store

Now that we have our Pagination component set up, it’s time to update our Redux store to handle the pagination state. Create a new file named paginationSlice.js and add the following code:

import { createSlice } from '@reduxjs/toolkit';

const paginationSlice = createSlice({
  name: 'pagination',
  initialState: {
    currentPage: 1,
    totalPages: 0,
  },
  reducers: {
    setPage: (state, action) => {
      state.currentPage = action.payload;
    },
    setTotalPages: (state, action) => {
      state.totalPages = action.payload;
    },
  },
});

export const { setPage, setTotalPages } = paginationSlice.actions;
export default paginationSlice.reducer;

In this code snippet, we use the createSlice function from Redux Toolkit to define our pagination slice. We initialize the initial state with currentPage set to 1 and totalPages set to 0.

We also define two reducers, setPage and setTotalPages, which will update the corresponding state values.

Configuring Pagination in Your App

To integrate the Pagination component and use it in your app, follow these steps:

1. Import the Pagination component into the file where you want to display the pagination UI.
2. Render the Pagination component within your JSX, wherever you want the pagination to appear.
3. Dispatch the setTotalPages action with the total number of pages when you fetch the data and calculate the total number of pages.
4. Use the current page information from the Redux store to retrieve the correct subset of data to display.

Conclusion

By implementing pagination using Redux and the React Paginate component, you can provide a streamlined navigation experience for users in your web application when dealing with large datasets. Follow the steps outlined in this blog post, and you’ll be well on your way to integrating pagination into your Redux-powered React app. #ReduxPagination #ReactPaginateComponent