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70 lines
2.8 KiB
Plaintext
70 lines
2.8 KiB
Plaintext
---
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title: 'Package Composition'
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sidebar:
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order: 5
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title: Package Composition
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---
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Storybook is widely used by component libraries and design systems. Design system authors can automatically compose their design systems inside their consumer’s Storybooks.
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For example, if you use a design system package, its stories can appear alongside your own. That makes it convenient to cross reference usage documentation without leaving Storybook.
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<Callout variant="info">
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Composition via a package requires a secure integration between the service where you publish Storybook and Storybook’s own APIs. We recommend [publishing Storybook to Chromatic](./publish-storybook.md#publish-storybook-with-chromatic) for full support of these features.
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</Callout>
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## For consumers
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Composition happens automatically if the package [supports](#for-authors) it. When you install the package, Storybook will load its stories alongside your own.
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### Set up
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If you want to configure how the composed Storybook behaves, you can disable the `ref` element in your [`.storybook/main.js`](../configure/index.md#configure-story-rendering)
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{/* prettier-ignore-start */}
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<CodeSnippets path="main-config-refs-disable.md" />
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{/* prettier-ignore-end */}
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### Switching versions
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Change the version of the composed Storybook to see how the library evolves. This requires [configuration](#show-a-version-selector) from the package author.
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## For authors
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Component library authors can expand adoption by composing their components in their consumer’s Storybooks.
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Add a `storybook` property in your published `package.json`that contains an object with a `url` field. Point the URL field to a published Storybook at the version you want.
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```json
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// Your component library’s package.json
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{
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"storybook": {
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"url": "https://host.com/your-storybook-for-this-version"
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}
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}
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```
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### Automatic version selection
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If you're using [Chromatic](./publish-storybook.md#publish-storybook-with-chromatic), you can provide a single URL for your Storybook in the `storybook.url` field. You do not need to change the URL each time you publish a new version. Storybook will automatically find the correct URL for your package. For example:
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```json
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{
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"storybook": {
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"url": "https://master--xyz123.chromatic.com"
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}
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}
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```
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In this example `xyz123` is your Chromatic project id. Storybook will automatically compose in the Storybook published to that project corresponding to the version the user has installed.
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### Show a version selector
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If you're using [Chromatic](./publish-storybook.md#publish-storybook-with-chromatic), you can provide a list of versions for the user to [choose from](#switching-versions) to experiment with other versions of your package.
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