| 1 | # `@storybook/client-api` -- Deprecated Story APIs (`storiesOf`)
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| 3 | **NOTE** This API is deprecated, and the CSF format is preferred for all stories.
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| 5 | ## `storiesOf` API
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| 7 | The `@storybook/client` API provides the [`storiesOf()` API](../core/docs/storiesOf.md), which is proxied through to the CSF API.
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| 9 | ### Internals
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| 11 | In order to appear to the store like the CSF API, a call to `storiesOf().add()` does the following:
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| 13 | - Tracks the story added in a synthetic `StoryIndex` data structure
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| 14 | - Constructs a `moduleExports` object that is equivalent to the exports from a CSF file that produced the same stories.
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| 16 | In order to achieve the old `storySort` functionality, the client API also needs access to the project annotations.
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