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@storybook/mdx2-csf

v1.1.0

Published

MDXv2 to CSF webpack compiler and loader

Downloads

11,698,258

Readme

@storybook/mdx2-csf

Storybook's mdx2-csf is a compiler that turns MDXv2 input into CSF output.

For example, the following input:

import { Meta, Story } from '@storybook/addon-docs';

<Meta title="atoms/Button" />

<Story name="Bar">
  <Button>hello</Button>
</Story>

Might be transformed into the following CSF (over-simplified):

export default {
  title: 'atoms/Button',
};

export const Bar = () => <Button>hello</Button>;

API

This library exports an async function to compile MDX, compile. It does not support a synchronous compiler because it uses asynchronous imports to bridge the ESM/CJS gap. The underlying MDXv2 libraries only support pure ESM, but this library is used in CJS environments.

compile

Asynchronously compile a string:

import { compile } from '@storybook/mdx2-csf';

const code = '# hello\n\nworld';
const output = await compile(code);

Loader

In addition, this library supports a simple Webpack loader that mirrors MDXv1's loader, but adds Webpack5 support. It doesn't use MDXv2's loader because it is prohibitively complex, and we want this to be interchangeable with the @storybook/mdx1-csf's loader which is also based on the MDXv1 loader.

The loader takes two options:

  • skipCsf don't generate CSF stories for the MDX file
  • mdxCompileOptions full options for the MDX compile function

For example, to add GFM support:

import remarkGfm from 'remark-gfm';

module.exports = {
  module: {
    rules: [
      {
        test: /\.(stories|story)\.mdx$/,
        use: [
          {
            loader: require.resolve('@storybook/mdx2-csf/loader'),
            options: {
              skipCsf: false,
              mdxCompileOptions: {
                remarkPlugins: [remarkGfm],
              },
            },
          },
        ],
      },
    ],
  },
};

Contributing

We welcome contributions to Storybook!

  • 📥 Pull requests and 🌟 Stars are always welcome.
  • Read our contributing guide to get started, or find us on Discord, we will take the time to guide you

License

MIT