How to add a Like button for your blog posts on a Docusaurus website


This is a step by step guide to integrate Feelback with your Docusaurus website. With this guide you will add a Like button to your blog posts.

Docusaurus like button example

In this tutorial you will:

Step 1: Setup the Feelback project

If you don't have already a Feelback account, please signup and create one. It's free and doesn't require a credit card to use.

Access the Feelback panel, and create a project if you don't have any. Feelback panel projects

You can use your website name.

Feelback panel create project

After that, create a ContentSet which will contain your content and feedbacks you will receive.

Feelback panel create content-set

Pick the Pulse type to enable this content-set to receive Like signals.

Feelback panel content-set type

Some further configuration:

Feelback panel content-set flags

You will end up with a ContentSet like the following one:

Feelback panel content-set info

Step 2: Install the Feelback plugin

In your Docusaurus project directory, just install the @feelback/react package:

npm install @feelback/react

Step 3: Add the FeelbackPulse component to the layout page

Now you are ready to add the Like button to your blog post page. Let’s suppose you want to add a Heart button near your blog post info, next to the author name and the published date.

To edit the default theme, in Docusaurus you have to run a procedure called Swizzling which allows to replace a builtin component with a custom one.

Perform the Docusaurus swizzle on the Blog title component

We want to wrap the current blog post info component and add the like button. For the Docusaurus default theme, the component is called: BlogPostItem/Header/Info

In the your Docusaurus directory run:

npm run swizzle @docusaurus/theme-classic BlogPostItem/Header/Info --wrap

This will copy the original component to your source folder at src/theme/BlogPostItem/Header/Info so you can modify it.

Edit the component and add the Like button

Now you can wrap the original component and adding inline the Like button.


import React from 'react';
import Info from '@theme-original/BlogPostItem/Header/Info';
import { FeelbackPulse, PRESET_PULSE_HEART } from "@feelback/react";

export default function InfoWrapper(props) {
  return (
    <div style={{ display: "flex", alignItems: "center" }}>
      <Info {...props} />
      <div style={{ marginLeft: "0.4em" }}>
        <FeelbackPulse contentSetId="your-content-set-id-from-panel"

Include the default Feelback style

Append the default style provided by the package at the end of your custom.css file.


 *  Your docusaurus custom css here

@import "@feelback/react/styles/feelback.css";

The result should be something like this:

Like button example

Additional documentation with all properties and customization you can use is available inside the dedicated React integration guide for each Feelback components.

Step 4: (Optional) Customize the component style

You can override the predefined style with additional CSS.

For example, you can add some selector to change the button icons size and set some custom value.


 *  Your docusaurus custom css here

@import "@feelback/react/styles/feelback.css";

.feelback-icon svg {
    width: 24px;
    height: 24px;

Full documentation with advanced customization is available inside the React integration guide.


The @feelback/react package is open source and available on github. Any contribution is much appreciated. Issues, bug reports and feature requests are welcome. Do not hesitate to reach us or ask for help.

Additional resources

Other guides for Docusaurus