docs/builders/vite.mdx
Storybook Vite builder bundles your components and stories with Vite, a fast ESM bundler.
If you ran npx storybook@latest init to include Storybook in your Vite application, the builder is already installed and configured for you. If you want, you can also opt into it manually.
Run the following command to install the builder.
<CodeSnippets path="storybook-vite-builder-install.md" />Update your Storybook configuration (in .storybook/main.js|ts) to include the builder.
Out of the box, Storybook's Vite builder includes a set of configuration defaults for the supported frameworks, which are merged alongside your existing configuration file. For an optimal experience when using the Vite builder, we recommend applying any configuration directly inside Vite's configuration file (i.e., vite.config.js|ts).
When Storybook loads, it automatically merges the configuration into its own. However, since different projects may have specific requirements, you may need to provide a custom configuration for Storybook. In such cases, you can modify your configuration file (.storybook/main.js|ts) and add the viteFinal configuration function as follows:
The asynchronous function viteFinal receives a config object with the default builder configuration and returns the updated configuration.
If you need to customize the builder's configuration and apply specific options based on your environment, extend the viteFinal function as follows:
By default, the Vite builder in Storybook searches for the Vite configuration file in the root directory of your Storybook project. However, you can customize it to look for the configuration file in a different location. For example:
<CodeSnippets path="main-config-builder-custom-config.md" /> <Callout variant="info" icon="💡"> If you do not want Storybook to load the Vite configuration file automatically, you can use the `viteConfigPath` option to point to a non-existent file. </Callout>If you need, you can also configure Storybook's Vite builder using TypeScript. Rename your .storybook/main.js to .storybook/main.ts and adjust it as follows:
Vite generally handles more use cases out of the box than Webpack. For example, loading styles just works for most projects. So, when migrating a Webpack-based project to Vite, you may find that you don't need all of your previous configuration.
We recommend starting with no Storybook-specific Vite configuration and only adding what you determine your project actually requires.
For reference, here is a Webpack configuration to handle loading graphql queries and its equivalent, using a plugin, in Vite:
<CodeSnippets path="webpack-final-to-vite-final.md" />By default, the Vite builder enables Vite's server.fs.strict option for increased security, defining the project's root to Storybook's configuration directory.
If you need to override it, you can use the viteFinal function and adjust it.
Currently, automatic argType inference is only available for React, Vue 3, and Svelte (JSDocs only). With React, the Vite builder defaults to react-docgen, a faster alternative to react-docgen-typescript for parsing React components. If you run into any issues, you can revert to react-docgen-typescript by updating your Storybook configuration file as follows:
If you are migrating from a Webpack-based project, such as CRA, to Vite, and you are interaction testing, you may run into a situation where your tests fail to execute notifying you that the window object is not defined. To resolve this issue, you can create a preview-head.html file in your Storybook configuration directory and include the following:
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