mirror of
https://github.com/nuxt/nuxt.git
synced 2024-11-23 06:05:11 +00:00
f26a801775
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: Daniel Roe <daniel@roe.dev>
131 lines
3.1 KiB
Markdown
131 lines
3.1 KiB
Markdown
---
|
|
title: "Context"
|
|
description: Nuxt Kit provides a set of utilities to help you work with context.
|
|
links:
|
|
- label: Source
|
|
icon: i-simple-icons-github
|
|
to: https://github.com/nuxt/nuxt/blob/main/packages/kit/src/context.ts
|
|
size: xs
|
|
---
|
|
|
|
Nuxt modules allow you to enhance Nuxt's capabilities. They offer a structured way to keep your code organized and modular. If you're looking to break down your module into smaller components, Nuxt offers the `useNuxt` and `tryUseNuxt` functions. These functions enable you to conveniently access the Nuxt instance from the context without having to pass it as argument.
|
|
|
|
::callout
|
|
When you're working with the `setup` function in Nuxt modules, Nuxt is already provided as the second argument. This means you can directly utilize it without needing to call `useNuxt()`. You can look at [Nuxt Site Config](https://github.com/harlan-zw/nuxt-site-config) as an example of usage.
|
|
::
|
|
|
|
## `useNuxt`
|
|
|
|
Get the Nuxt instance from the context. It will throw an error if Nuxt is not available.
|
|
|
|
### Type
|
|
|
|
```ts
|
|
function useNuxt(): Nuxt
|
|
|
|
interface Nuxt {
|
|
options: NuxtOptions
|
|
hooks: Hookable<NuxtHooks>
|
|
hook: Nuxt['hooks']['hook']
|
|
callHook: Nuxt['hooks']['callHook']
|
|
addHooks: Nuxt['hooks']['addHooks']
|
|
ready: () => Promise<void>
|
|
close: () => Promise<void>
|
|
server?: any
|
|
vfs: Record<string, string>
|
|
apps: Record<string, NuxtApp>
|
|
}
|
|
```
|
|
|
|
### Examples
|
|
|
|
::code-group
|
|
|
|
```ts [setupTranspilation.ts]
|
|
// https://github.com/Lexpeartha/nuxt-xstate/blob/main/src/parts/transpile.ts
|
|
import { useNuxt } from '@nuxt/kit'
|
|
|
|
export const setupTranspilation = () => {
|
|
const nuxt = useNuxt()
|
|
|
|
nuxt.options.build.transpile = nuxt.options.build.transpile || []
|
|
|
|
if (nuxt.options.builder === '@nuxt/webpack-builder') {
|
|
nuxt.options.build.transpile.push(
|
|
'xstate',
|
|
)
|
|
}
|
|
}
|
|
```
|
|
|
|
```ts [module.ts]
|
|
import { useNuxt } from '@nuxt/kit'
|
|
import { setupTranspilation } from './setupTranspilation'
|
|
|
|
export default defineNuxtModule({
|
|
setup() {
|
|
setupTranspilation()
|
|
}
|
|
})
|
|
```
|
|
|
|
::
|
|
|
|
## `tryUseNuxt`
|
|
|
|
Get the Nuxt instance from the context. It will return `null` if Nuxt is not available.
|
|
|
|
### Type
|
|
|
|
```ts
|
|
function tryUseNuxt(): Nuxt | null
|
|
|
|
interface Nuxt {
|
|
options: NuxtOptions
|
|
hooks: Hookable<NuxtHooks>
|
|
hook: Nuxt['hooks']['hook']
|
|
callHook: Nuxt['hooks']['callHook']
|
|
addHooks: Nuxt['hooks']['addHooks']
|
|
ready: () => Promise<void>
|
|
close: () => Promise<void>
|
|
server?: any
|
|
vfs: Record<string, string>
|
|
apps: Record<string, NuxtApp>
|
|
}
|
|
```
|
|
|
|
### Examples
|
|
|
|
::code-group
|
|
|
|
```ts [requireSiteConfig.ts]
|
|
// https://github.com/harlan-zw/nuxt-site-config/blob/main/test/assertions.test.ts
|
|
import { tryUseNuxt } from '@nuxt/kit'
|
|
|
|
interface SiteConfig {
|
|
title: string
|
|
}
|
|
|
|
export const requireSiteConfig = (): SiteConfig => {
|
|
const nuxt = tryUseNuxt()
|
|
if (!nuxt) {
|
|
return { title: null }
|
|
}
|
|
return nuxt.options.siteConfig
|
|
}
|
|
```
|
|
|
|
```ts [module.ts]
|
|
import { useNuxt } from '@nuxt/kit'
|
|
import { requireSiteConfig } from './requireSiteConfig'
|
|
|
|
export default defineNuxtModule({
|
|
setup(_, nuxt) {
|
|
const config = requireSiteConfig()
|
|
nuxt.options.app.head.title = config.title
|
|
}
|
|
})
|
|
```
|
|
|
|
::
|