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chore: v3.0.0-rc.1 release (#9453)
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# Using Plugins
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**The Docusaurus core doesn't provide any feature of its own.** All features are delegated to individual plugins: the [docs](./guides/docs/docs-introduction.mdx) feature provided by the [docs plugin](./api/plugins/plugin-content-docs.mdx); the [blog](./blog.mdx) feature provided by the [blog plugin](./api/plugins/plugin-content-blog.mdx); or individual [pages](./guides/creating-pages.mdx) provided by the [pages plugin](./api/plugins/plugin-content-pages.mdx). If there are no plugins installed, the site won't contain any routes.
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You may not need to install common plugins one-by-one though: they can be distributed as a bundle in a [preset](#using-presets). For most users, plugins are configured through the preset configuration.
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We maintain a [list of official plugins](./api/plugins/overview.mdx), but the community has also created some [unofficial plugins](/community/resources#community-plugins). If you want to add any feature: autogenerating doc pages, executing custom scripts, integrating other services... be sure to check out the list: someone may have implemented it for you!
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If you are feeling energetic, you can also read [the plugin guide](./advanced/plugins.mdx) or [plugin method references](./api/plugin-methods/README.mdx) for how to make a plugin yourself.
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## Installing a plugin {#installing-a-plugin}
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A plugin is usually an npm package, so you install them like other npm packages using npm.
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```bash npm2yarn
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npm install --save docusaurus-plugin-name
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```
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Then you add it in your site's `docusaurus.config.js`'s `plugins` option:
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```js title="docusaurus.config.js"
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export default {
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// ...
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// highlight-next-line
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plugins: ['@docusaurus/plugin-content-pages'],
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};
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```
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Docusaurus can also load plugins from your local directory, with something like the following:
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```js title="docusaurus.config.js"
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export default {
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// ...
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// highlight-next-line
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plugins: ['./src/plugins/docusaurus-local-plugin'],
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};
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```
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Paths should be absolute or relative to the config file.
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## Configuring plugins {#configuring-plugins}
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For the most basic usage of plugins, you can provide just the plugin name or the path to the plugin.
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However, plugins can have options specified by wrapping the name and an options object in a two-member tuple inside your config. This style is usually called "Babel Style".
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```js title="docusaurus.config.js"
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export default {
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// ...
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plugins: [
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// highlight-start
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[
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'@docusaurus/plugin-xxx',
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{
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/* options */
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},
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],
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// highlight-end
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],
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};
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```
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Example:
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```js title="docusaurus.config.js"
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export default {
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plugins: [
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// Basic usage.
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'@docusaurus/plugin-debug',
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// With options object (babel style)
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[
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'@docusaurus/plugin-sitemap',
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{
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changefreq: 'weekly',
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},
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],
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],
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};
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```
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## Multi-instance plugins and plugin IDs {#multi-instance-plugins-and-plugin-ids}
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All Docusaurus content plugins can support multiple plugin instances. For example, it may be useful to have [multiple docs plugin instances](./guides/docs/docs-multi-instance.mdx) or [multiple blogs](./blog.mdx#multiple-blogs). It is required to assign a unique ID to each plugin instance, and by default, the plugin ID is `default`.
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```js title="docusaurus.config.js"
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export default {
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plugins: [
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[
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'@docusaurus/plugin-content-docs',
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{
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// highlight-next-line
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id: 'docs-1',
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// other options
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},
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],
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[
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'@docusaurus/plugin-content-docs',
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{
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// highlight-next-line
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id: 'docs-2',
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// other options
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},
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],
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],
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};
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```
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:::note
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At most one plugin instance can be the "default plugin instance", by omitting the `id` attribute, or using `id: 'default'`.
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:::
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## Using themes {#using-themes}
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Themes are loaded in the exact same way as plugins. From the consumer perspective, the `themes` and `plugins` entries are interchangeable when installing and configuring a plugin. The only nuance is that themes are loaded after plugins, and it's possible for [a theme to override a plugin's default theme components](./swizzling.mdx#theme-aliases).
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:::tip
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The `themes` and `plugins` options lead to different [shorthand resolutions](#module-shorthands), so if you want to take advantage of shorthands, be sure to use the right entry!
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:::
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```js title="docusaurus.config.js"
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export default {
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// ...
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// highlight-next-line
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themes: ['@docusaurus/theme-classic', '@docusaurus/theme-live-codeblock'],
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};
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```
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## Using presets {#using-presets}
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Presets are bundles of plugins and themes. For example, instead of letting you register and configure `@docusaurus/plugin-content-docs`, `@docusaurus/plugin-content-blog`, etc. one after the other in the config file, we have `@docusaurus/preset-classic` preset allows you to configure them in one centralized place.
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### `@docusaurus/preset-classic` {#docusauruspreset-classic}
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The classic preset is shipped by default to new Docusaurus websites created with [`create-docusaurus`](./installation.mdx#scaffold-project-website). It contains the following themes and plugins:
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- [`@docusaurus/theme-classic`](./api/themes/theme-configuration.mdx)
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- [`@docusaurus/theme-search-algolia`](./api/themes/theme-search-algolia.mdx)
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- [`@docusaurus/plugin-content-docs`](./api/plugins/plugin-content-docs.mdx)
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- [`@docusaurus/plugin-content-blog`](./api/plugins/plugin-content-blog.mdx)
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- [`@docusaurus/plugin-content-pages`](./api/plugins/plugin-content-pages.mdx)
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- [`@docusaurus/plugin-debug`](./api/plugins/plugin-debug.mdx)
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- [`@docusaurus/plugin-google-gtag`](./api/plugins/plugin-google-gtag.mdx)
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- [`@docusaurus/plugin-google-tag-manager`](./api/plugins/plugin-google-tag-manager.mdx)
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- [`@docusaurus/plugin-google-analytics`](./api/plugins/plugin-google-analytics.mdx) (**deprecated**)
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- [`@docusaurus/plugin-sitemap`](./api/plugins/plugin-sitemap.mdx)
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The classic preset will relay each option entry to the respective plugin/theme.
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```js title="docusaurus.config.js"
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export default {
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presets: [
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[
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'@docusaurus/preset-classic',
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{
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// Debug defaults to true in dev, false in prod
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debug: undefined,
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// Will be passed to @docusaurus/theme-classic.
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theme: {
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customCss: ['./src/css/custom.css'],
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},
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// Will be passed to @docusaurus/plugin-content-docs (false to disable)
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docs: {},
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// Will be passed to @docusaurus/plugin-content-blog (false to disable)
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blog: {},
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// Will be passed to @docusaurus/plugin-content-pages (false to disable)
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pages: {},
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// Will be passed to @docusaurus/plugin-sitemap (false to disable)
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sitemap: {},
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// Will be passed to @docusaurus/plugin-google-gtag (only enabled when explicitly specified)
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gtag: {},
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// Will be passed to @docusaurus/plugin-google-tag-manager (only enabled when explicitly specified)
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googleTagManager: {},
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// DEPRECATED: Will be passed to @docusaurus/plugin-google-analytics (only enabled when explicitly specified)
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googleAnalytics: {},
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},
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],
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],
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};
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```
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### Installing presets {#installing-presets}
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A preset is usually an npm package, so you install them like other npm packages using npm.
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```bash npm2yarn
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npm install --save @docusaurus/preset-classic
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```
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Then, add it in your site's `docusaurus.config.js`'s `presets` option:
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```js title="docusaurus.config.js"
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export default {
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// ...
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// highlight-next-line
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presets: ['@docusaurus/preset-classic'],
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};
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```
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Preset paths can be relative to the config file:
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```js title="docusaurus.config.js"
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export default {
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// ...
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// highlight-next-line
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presets: ['./src/presets/docusaurus-local-preset'],
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};
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```
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### Creating presets {#creating-presets}
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A preset is a function with the same shape as the [plugin constructor](./api/plugin-methods/README.mdx#plugin-constructor). It should return an object of `{ plugins: PluginConfig[], themes: PluginConfig[] }`, in the same as how they are accepted in the site config. For example, you can specify a preset that includes the following themes and plugins:
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```js title="src/presets/docusaurus-preset-multi-docs.js"
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export default function preset(context, opts = {}) {
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return {
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themes: [['docusaurus-theme-awesome', opts.theme]],
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plugins: [
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// Using three docs plugins at the same time!
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// Assigning a unique ID for each without asking the user to do it
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['@docusaurus/plugin-content-docs', {...opts.docs1, id: 'docs1'}],
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['@docusaurus/plugin-content-docs', {...opts.docs2, id: 'docs2'}],
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['@docusaurus/plugin-content-docs', {...opts.docs3, id: 'docs3'}],
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],
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};
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}
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```
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Then in your Docusaurus config, you may configure the preset:
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```js title="docusaurus.config.js"
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export default {
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presets: [
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// highlight-start
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[
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'./src/presets/docusaurus-preset-multi-docs.js',
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{
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theme: {hello: 'world'},
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docs1: {path: '/docs'},
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docs2: {path: '/community'},
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docs3: {path: '/api'},
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},
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],
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// highlight-end
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],
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};
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```
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This is equivalent of doing:
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```js title="docusaurus.config.js"
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export default {
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themes: [['docusaurus-theme-awesome', {hello: 'world'}]],
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plugins: [
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['@docusaurus/plugin-content-docs', {id: 'docs1', path: '/docs'}],
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['@docusaurus/plugin-content-docs', {id: 'docs2', path: '/community'}],
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['@docusaurus/plugin-content-docs', {id: 'docs3', path: '/api'}],
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],
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};
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```
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This is especially useful when some plugins and themes are intended to be used together. You can even link their options together, e.g. pass one option to multiple plugins.
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## Module shorthands {#module-shorthands}
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Docusaurus supports shorthands for plugins, themes, and presets. When it sees a plugin/theme/preset name, it tries to load one of the following, in that order:
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- `[name]` (like `content-docs`)
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- `@docusaurus/[moduleType]-[name]` (like `@docusaurus/plugin-content-docs`)
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- `docusaurus-[moduleType]-[name]` (like `docusaurus-plugin-content-docs`)
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where `moduleType` is one of `'preset'`, `'theme'`, `'plugin'`, depending on which field the module name is declared in. The first module name that's successfully found is loaded.
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If the name is scoped (beginning with `@`), the name is first split into scope and package name by the first slash:
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```
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@scope
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^----^
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scope (no name!)
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@scope/awesome
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^----^ ^-----^
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scope name
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@scope/awesome/main
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^----^ ^----------^
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scope name
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```
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If there is no name (like `@jquery`), `[scope]/docusaurus-[moduleType]` (i.e. `@jquery/docusaurus-plugin`) is loaded. Otherwise, the following are attempted:
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- `[scope]/[name]` (like `@jquery/content-docs`)
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- `[scope]/docusaurus-[moduleType]-[name]` (like `@jquery/docusaurus-plugin-content-docs`)
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Below are some examples, for a plugin registered in the `plugins` field. Note that unlike [ESLint](https://eslint.org/docs/user-guide/configuring/plugins#configuring-plugins) or [Babel](https://babeljs.io/docs/en/options#name-normalization) where a consistent naming convention for plugins is mandated, Docusaurus permits greater naming freedom, so the resolutions are not certain, but follows the priority defined above.
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| Declaration | May be resolved as |
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| --- | --- |
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| `awesome` | `docusaurus-plugin-awesome` |
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| `sitemap` | [`@docusaurus/plugin-sitemap`](./api/plugins/plugin-sitemap.mdx) |
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| `@my-company` | `@my-company/docusaurus-plugin` (the only possible resolution!) |
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| `@my-company/awesome` | `@my-company/docusaurus-plugin-awesome` |
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| `@my-company/awesome/web` | `@my-company/docusaurus-plugin-awesome/web` |
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