@astrojs/markdoc

This Astro integration enables the usage of Markdoc to create components, pages, and content collection entries.

Markdoc allows you to enhance your Markdown with Astro components. If you have existing content authored in Markdoc, this integration allows you to bring those files to your Astro project using content collections.

The astro add command-line tool automates the installation for you. Run one of the following commands in a new terminal window. (If you aren’t sure which package manager you’re using, run the first command.) Then, follow the prompts, and type “y” in the terminal (meaning “yes”) for each one.

# Using NPM
npx astro add markdoc
# Using Yarn
yarn astro add markdoc
# Using PNPM
pnpm astro add markdoc

If you run into any issues, feel free to report them to us on GitHub and try the manual installation steps below.

First, install the @astrojs/markdoc package using your package manager. If you’re using npm or aren’t sure, run this in the terminal:

npm install @astrojs/markdoc

Then, apply this integration to your astro.config.* file using the integrations property:

import { defineConfig } from 'astro/config';
import markdoc from '@astrojs/markdoc';

export default defineConfig({
  // ...
  integrations: [markdoc()],
});

VS Code supports Markdown by default. However, for Markdoc editor support, you may wish to add the following setting in your VSCode config. This ensures authoring Markdoc files provides a Markdown-like editor experience.

"files.associations": {
    "*.mdoc": "markdown"
}

Markdoc files can only be used within content collections. Add entries to any content collection using the .mdoc extension:

src/content/docs/
  why-markdoc.mdoc
  quick-start.mdoc

Then, query your collection using the Content Collection APIs:

---
import { getEntryBySlug } from 'astro:content';

const entry = await getEntryBySlug('docs', 'why-markdoc');
const { Content } = await entry.render();
---

<!--Access frontmatter properties with `data`-->
<h1>{entry.data.title}</h1>
<!--Render Markdoc contents with the Content component-->
<Content />

📚 See the Astro Content Collection docs for more information.

@astrojs/markdoc offers configuration options to use all of Markdoc’s features and connect UI components to your content.

You can add Astro and UI framework components (React, Vue, Svelte, etc.) to your Markdoc using both Markdoc tags and HTML element nodes.

You may configure Markdoc tags that map to components. You can configure a new tag from your astro.config using the tags attribute.

import { defineConfig } from 'astro/config';
import markdoc from '@astrojs/markdoc';

// https://astro.build/config
export default defineConfig({
  integrations: [
    markdoc({
      tags: {
        aside: {
          render: 'Aside',
          attributes: {
            // Component props as attribute definitions
            // See Markdoc's documentation on defining attributes
            // https://markdoc.dev/docs/attributes#defining-attributes
            type: { type: String },
          }
        },
      },
    }),
  ],
});

Then, you can wire this render name ('Aside') to a component from the components prop via the <Content /> component. Note the object key name (Aside in this case) should match the render name:

---
import { getEntryBySlug } from 'astro:content';
import Aside from '../components/Aside.astro';

const entry = await getEntryBySlug('docs', 'why-markdoc');
const { Content } = await entry.render();
---

<Content
  components={{ Aside }}
/>

You may also want to map standard HTML elements like headings and paragraphs to components. For this, you can configure a custom Markdoc node. This example overrides Markdoc’s heading node to render a Heading component, passing the built-in level attribute as a prop:

import { defineConfig } from 'astro/config';
import markdoc from '@astrojs/markdoc';

// https://astro.build/config
export default defineConfig({
  integrations: [
    markdoc({
      nodes: {
        heading: {
          render: 'Heading',
          // Markdoc requires type defs for each attribute.
          // These should mirror the `Props` type of the component
          // you are rendering. 
          // See Markdoc's documentation on defining attributes
          // https://markdoc.dev/docs/attributes#defining-attributes
          attributes: {
            level: { type: String },
          }
        },
      },
    }),
  ],
});

Now, you can map the string passed to render ('Heading' in this example) to a component import. This is configured from the <Content /> component used to render your Markdoc using the components prop:

---
import { getEntryBySlug } from 'astro:content';
import Heading from '../components/Heading.astro';

const entry = await getEntryBySlug('docs', 'why-markdoc');
const { Content } = await entry.render();
---

<Content
  components={{ Heading }}
/>

Now, all Markdown headings will render with the Heading.astro component. This example uses a level 3 heading, automatically passing level: 3 as the component prop:

### I'm a level 3 heading!

📚 Find all of Markdoc’s built-in nodes and node attributes on their documentation.

Today, the components prop does not support the client: directive for hydrating components. To embed client-side components, create a wrapper .astro file to import your component and apply a client: directive manually.

This example wraps a Aside.tsx component with a ClientAside.astro wrapper:

---
import Aside from './Aside';
---

<Aside client:load />

This component can be applied via the components prop:

---
import { getEntryBySlug } from 'astro:content';
import ClientAside from '../components/ClientAside.astro';

const entry = await getEntryBySlug('docs', 'why-markdoc');
const { Content } = await entry.render();
---

<Content
  components={{
    Aside: ClientAside,
  }}
/>

You can access content collection information from your Markdoc templates using the $entry variable. This includes the entry slug, collection name, and frontmatter data parsed by your content collection schema (if any). This example renders the title frontmatter property as a heading:

---
title: Welcome to Markdoc 👋
---

# {% $entry.data.title %}

The $entry object matches the CollectionEntry type, excluding the .render() property.

The Markdoc integration accepts all Markdoc configuration options, including tags and functions.

You can pass these options from the markdoc() integration in your astro.config. This example adds a global getCountryEmoji function:

import { defineConfig } from 'astro/config';
import markdoc from '@astrojs/markdoc';

// https://astro.build/config
export default defineConfig({
  integrations: [
    markdoc({
      functions: {
        getCountryEmoji: {
          transform(parameters) {
            const [country] = Object.values(parameters);
            const countryToEmojiMap = {
              japan: '🇯🇵',
              spain: '🇪🇸',
              france: '🇫🇷',
            }
            return countryToEmojiMap[country] ?? '🏳'
          },
        },
      },
    }),
  ],
});

Now, you can call this function from any Markdoc content entry:

¡Hola {% getCountryEmoji("spain") %}!

📚 See the Markdoc documentation for more on using variables or functions in your content.

You may need to define Markdoc configuration at the component level, rather than the astro.config.mjs level. This is useful when mapping props and SSR parameters to Markdoc variables.

Astro recommends running the Markdoc transform step manually. This allows you to define your configuration and call Markdoc’s rendering functions in a .astro file directly, ignoring any Markdoc config in your astro.config.mjs.

You will need to install the @markdoc/markdoc package into your project first:

# Using NPM
npm install @markdoc/markdoc
# Using Yarn
yarn add @markdoc/markdoc
# Using PNPM
pnpm add @markdoc/markdoc

Now, you can define Markdoc configuration options using Markdock.transform().

This example defines an abTestGroup Markdoc variable based on an SSR param, transforming the raw entry body. The result is rendered using the Renderer component provided by @astrojs/markdoc:

---
import Markdoc from '@markdoc/markdoc';
import { Renderer } from '@astrojs/markdoc/components';
import { getEntryBySlug } from 'astro:content';

const { body } = await getEntryBySlug('docs', 'with-ab-test');
const ast = Markdoc.parse(body);
const content = Markdoc.transform({
  variables: { abTestGroup: Astro.params.abTestGroup },
}, ast);
---

<Renderer {content} components={{ /* same `components` prop used by the `Content` component */ }} />

• The Astro Markdoc starter template shows how to use Markdoc files in your Astro project.

For help, check out the #support channel on Discord. Our friendly Support Squad members are here to help!

You can also check our Astro Integration Documentation for more on integrations.

This package is maintained by Astro’s Core team. You’re welcome to submit an issue or PR!

See CHANGELOG.md for a history of changes to this integration.

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