astro-lunr

Integration for building LunrJS index for Astro websites. Index items include text content underneath each heading tag.

• Astro
• Lunr

Prerequisites

Your Astro site should be set up and there should be no existing file at /search_index.json as it will be overwritten.

Install

You must enable experimental integrations to use third-party integrations with Astro. After doing this, you can install this integration like any other:

npx astro add @jackcarey/astro-lunr

or

npm i @jackcarey/astro-lunr

Usage

Index items

Each entry in search_index.json contains loc, title, and content properties.

dist/some-path/index.html

//...
<h2>Foo</h2>
<p>The text underneath the foo heading.</p>
<h2>Bar</h2>
<p>The text underneath the bar heading.</p>
//...

search_index.json

[
    {
        "loc": "/some-path#foo",
        "title": "Foo Heading",
        "content": "The text underneath the foo heading."
    },
    {
        "loc": "/some-path#bar",
        "title": "Bar Heading",
        "content": "The text underneath the bar heading."
    }
]

Configuration

There are three functions you can pass to configure the index. Each function must return a boolean for whether or not it is included in the search index.

• routeFilter - A regular JavaScript array filter that accepts Astro RouteData as input.
• resultFilter - A regular JavaScript array filter that accepts index items as input.
• headingFilter - Uses a Cheerio filter against each heading tag.
• contentFilter - Uses a Cheerio filter against the content below each heading.

Client-side

This package doesn't provide a component yet, so use the LunrJS documentation to integrate a search input into your site.