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coryd.dev-eleventy/src/posts/2023/popular-posts-widget-using-eleventy-plausible.md

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---
date: '2023-07-12'
title: 'Building a popular posts widget in Eleventy using Plausible analytics'
draft: false
tags: ['Eleventy', 'development']
---
I took some time last week to build out a popular posts widget after seeing [Zach's](https://www.zachleat.com) implementation using Google Analytics.<!-- excerpt -->
[Plausible offers access to an API to query and return stats collected from visitors to your site](https://plausible.io/docs/stats-api).
My request to Plausible's API looks like this:
```javascript
const EleventyFetch = require('@11ty/eleventy-fetch')
module.exports = async function () {
const API_KEY_PLAUSIBLE = process.env.API_KEY_PLAUSIBLE
const url =
'https://plausible.io/api/v1/stats/breakdown?site_id=coryd.dev&period=6mo&property=event:page&limit=30'
const res = EleventyFetch(url, {
duration: '1h',
type: 'json',
fetchOptions: {
headers: {
Authorization: `Bearer ${API_KEY_PLAUSIBLE}`,
},
},
}).catch()
const pages = await res
return pages.results.filter((p) => p.page.includes('posts')).splice(0, 5)
}
```
This is then passed to a custom filter ([based on code I originally stole from Zach](https://github.com/zachleat/zachleat.com/blob/bcce001529b7a08eadf752f62f2d8fc08798999f/_11ty/analyticsPlugin.js#L10)):
```javascript
getPopularPosts: (posts, analytics) => {
return posts
.filter((post) => {
if (analytics.find((p) => p.page === post.url)) return true
})
.sort((a, b) => {
const visitors = (page) => analytics.filter((p) => p.page === page.url).pop().visitors
return visitors(b) - visitors(a)
})
},
```
And rendered using a liquid template:
{% raw %}
```liquid
{% assign posts = posts | getPopularPosts: analytics %}
<div class="not-prose">
<h2 class="[&>svg]:h-7 [&>svg]:w-7 [&>svg]:inline icon--bold m-0 text-xl flex flex-row items-center font-black leading-tight tracking-normal dark:text-gray-200 md:text-2xl mt-8 mb-4">
{% tablericon "fire" "Popular" %}
Popular posts
</h2>
<ul class="list-inside list-disc pl-5 md:pl-10">
{% for post in posts %}
<li class="mt-1.5 mb-2">
<a href="{{post.url}}" title="{{ post.data.title | escape}}">
{{ post.data.title }}
</a>
</li>
{% endfor %}
</ul>
</div>
```
{% endraw %}
This can then be rendered just about anywhere using the following:
{% raw %}
```liquid
{% render "partials/popular-posts.liquid", posts: collections.posts, analytics: analytics %}
```
{% endraw %}
[And can be seen on my handy, dandy 404 (or search or any post page)](https://coryd.dev/404).