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97 lines
2.3 KiB
Markdown
97 lines
2.3 KiB
Markdown
---
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icon: IconDirectory
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title: 'modules'
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navigation: false
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head.title: Local modules directory
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---
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# Local modules directory
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Nuxt has a powerful [modules engine](/concepts/modules).
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# Creating Modules
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Nuxt provides helper functions (accessed from `@nuxt/kit`) to assist in creating modules that can run on both Nuxt 2 and Nuxt 3.
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```js
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import { defineNuxtModule } from '@nuxt/kit'
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export default defineNuxtModule({
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// The npm package name of your module
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name: '@nuxtjs/sample-module',
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// The key in `nuxt.config` that holds your module options
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configKey: 'sample',
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// Default configuration options for your module
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defaults: {},
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hooks: {},
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setup (options, nuxt) {},
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})
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```
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## Module options
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Nuxt will automatically merge the configuration provided to your module (whether passed directly inline or in a configuration section in `nuxt.config`) with the defaults you provide.
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```js
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export default {
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buildModules: [
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['@nuxtjs/sample-module', { sampleOption: true }]
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],
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sample: {
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anotherOption: 42
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}
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}
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```
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## Hooks
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For simple modules, you may be able to implement all you need simply with several hooks in this section.
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## Setup
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If the `hooks` configuration is not enough, you can provide a full setup function, with access to `nuxt`. You will no longer have access to `this` as in the previous Nuxt module specification, but there are dedicated helper functions from `@nuxt/kit` to replace the module container methods from previously.
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```js
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import { defineNuxtModule, addPlugin } from '@nuxt/kit'
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export default defineNuxtModule({
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// ...
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setup (options, nuxt) {
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addPlugin({
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src: path.resolve(__dirname, 'templates/foo.js')
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})
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},
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})
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```
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## Advanced usage
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In some cases you may need access to the Nuxt instance in order to define your module, for example, using other Nuxt options:
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```js
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import { defineNuxtModule } from '@nuxt/kit'
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export default defineNuxtModule(nuxt => ({
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// ...
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defaults: {
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root: nuxt.options.rootDir
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},
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}))
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```
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## Module helpers
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A number of helpers are also provided for use within this context (with more coming - feature requests welcome) that ensure compatible behavior across Nuxt versions.
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* addTemplate
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* addErrorLayout
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* addLayout
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* addPlugin
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* addServerMiddleware
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* extendBuild
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* extendRoutes
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Each of these functions provides documentation via IDE hover/autocomplete.
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## Publishing to NPM
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