Jul 14, 2023

New Astro Starlight integration

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How to collect user feedbacks in your Astro Starlight documentation and make it better with Feelback


What is Starlight?

Starlight is documentation template for Astro. It provides a quick way to build a documentation website with many features builtin. Based on Mark* documents, it offers powerful content management and, of course, it inherits all the benefits Astro brings such as fast performances and flexibility.

Tracking documentation quality

A documentation is a content-heavy website. You invest lot of time writing articles and tutorial. It’s useful to understand what your users think about your documentation:

Those are examples of many question worth asking to your user.

We need to collect feedback in a proper and efficient way, while keeping all feedbacks organized and easily managed.

A feedback system for Starlight

We’re going to use Feelback to collect user feedback about your documentation pages.

Pick the system of choice

There’s many feedback system you can adopt for your documentation.

You can see how big documentations get it done and take some inspiration. Here, there’re prominent ones analyzed and ready for you.

Starlight integration

In this guide we’re going to integrate a Vercel-like feedback system. The complete code integration is available at the repository samples/astro-starlight.

We’re going to integrate a Feelback component in the page layout, in the article footer. Thus, it will be available on each page with no further action needed.

The result will be something like:

and when opened…

The component supports both light and dark theme, with the starlight color palette.

Step 1: Feelback project setup

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 Tagged Message type to enable this content-set to receive categorized feedback message signals.

Feelback panel content-set type

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

Feelback panel content-set info

Step 2: Install Feelback package

In your Astro project directory, just install the astro-feelback package:

npm install astro-feelback

Step 3: Feedback Component

Let’s create a dedicated feedback component. Later we will import it into the layout page.

Because, the astro-feelback provides many prebuilt component and presets, the component is very easy to implement.


import FeelbackTaggedMessage from "astro-feelback/components/FeelbackTaggedMessage.astro";
import "astro-feelback/styles/feelback.css";

const CONTENT_SET_ID = "$content-set-id-from-panel";

    title="Was this page useful?"
    style={["bordered", "align-center"]}

Now we need some little css tweaks to adapt to starlight styling. To not bloat this guide, just copy the css from the sample integration component.

Step 4: Component override

At the moment of writing, Astro Starlight is in prerelease stage and doesn’t support layout extension capabilities. So we’ll workaround that with a little hack.

We’ll replace one starlight builtin component with our version. And, since we will place the feedback component on the article footer, right above the page navigation links (prev article, next article), we will override that component. The PrevNextLinks.astro component.

Let’s create our version of the PrevNextLinks.astro. All we need is just to wrap the original PrevNextLinks.astro and put our feedback component before it. Easy task, just a couple lines of code.


import PrevNextLinks from "@astrojs/starlight/components/PrevNextLinks.astro";
import FeedbackComponent from "../FeedbackComponent.astro";
    <FeedbackComponent />
    <PrevNextLinks {...Astro.props} />

Now we need to activate this override mechanism. A simple astro integration will do the work. When, the system asks for the PrevNextLinks component we will provide our version of it.


import fs from "fs";
import path from "path";

const LOCAL_COMPONENT_DIR = "src/components";

export default function overrideIntegration() {
  return {
    name: "overrides",
    hooks: {
      "astro:config:setup"({ updateConfig, config }) {
        const components = fs.readdirSync("./" + LOCAL_COMPONENT_DIR).filter(x => x.endsWith(".astro"));

          vite: {
            plugins: [{
              enforce: "pre",
              name: "override",
              async resolveId(source, importer) {
                for (const component of components) {
                  if (source.endsWith(component) && !source.includes(LOCAL_COMPONENT_DIR) && !source.includes("node_modules")) {
                    if (importer.includes(LOCAL_COMPONENT_DIR)) {
                      return path.resolve("./node_modules/@astrojs/starlight/components/" + component);
                    } else {
                      return path.resolve("./" + LOCAL_COMPONENT_DIR + "/" + component);

And finally we can activate the integration.

import { defineConfig } from "astro/config";
import starlight from "@astrojs/starlight";
import overrideIntegration from "./src/overrideIntegration.mjs";

export default defineConfig({
  integrations: [
        // ...everything else

Analyze aggregated feedback data

You can access the Feelback panel and checkout your content performance. A content item is the target object of the user feedback. In this scenario, a content item is the actual page the user is browsing.

In the dashboard, you can quickly see which page performs better.

Vercel top content list

For each page you can analyze aggregated data, which include the feedback count received. You can go back and check historical data and change the aggregation period to week, month or year.

Vercel feedback volume chart

In this guide, we used the TaggedMessage to collect user feedbacks. And, because we configured sentiment values, Feelback creates sentiment aggregations too. For each page you can see the overall evaluation and the per Tag split.

Vercel feedback sentiment chart

In addition to the aggregated view, you can go deep and analyze each single feedback. You can search, filter and check each feedback and see the details.

Vercel feedback example

Each feedback comes with context data to further understand the relevance and specifics.

Vercel feedback context data


The astro-feelback 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 Astro