mirror of https://github.com/nuxt/nuxt.git
68 lines
1.8 KiB
Markdown
68 lines
1.8 KiB
Markdown
---
|
|
navigation.icon: IconFile
|
|
title: app.config.ts
|
|
head.title: Nuxt App Config
|
|
description: Nuxt 3 provides the app.config file to expose reactive configuration within your application.
|
|
---
|
|
|
|
# App Config File
|
|
|
|
Nuxt 3 provides an `app.config` config file to expose reactive configuration within your application with the ability to update it at runtime within lifecycle or using a nuxt plugin and editing it with HMR (hot-module-replacement).
|
|
|
|
You can easily provide runtime app configuration using `app.config.ts` file. It can have either of `.ts`, `.js`, or `.mjs` extensions.
|
|
|
|
```ts [app.config.ts]
|
|
export default defineAppConfig({
|
|
foo: 'bar'
|
|
})
|
|
```
|
|
|
|
::alert{type=warning}
|
|
Do not put any secret values inside `app.config` file. It is exposed to the user client bundle.
|
|
::
|
|
|
|
## Defining App Config
|
|
|
|
To expose config and environment variables to the rest of your app, you will need to define configuration in `app.config` file.
|
|
|
|
**Example:**
|
|
|
|
```ts [app.config.ts]
|
|
export default defineAppConfig({
|
|
theme: {
|
|
primaryColor: '#ababab'
|
|
}
|
|
})
|
|
```
|
|
|
|
When adding `theme` to the `app.config`, Nuxt uses Vite or Webpack to bundle the code. We can universally access `theme` in both server and browser using [useAppConfig](/api/composables/use-app-config) composable.
|
|
|
|
```js
|
|
const appConfig = useAppConfig()
|
|
|
|
console.log(appConfig.theme)
|
|
```
|
|
|
|
<!-- TODO: Document module author for extension -->
|
|
|
|
### Manually Typing App Config
|
|
|
|
Nuxt tries to automatically generate a typescript interface from provided app config.
|
|
|
|
It is also possible to type app config manually:
|
|
|
|
```ts [index.d.ts]
|
|
declare module '@nuxt/schema' {
|
|
interface AppConfigInput {
|
|
/** Theme configuration */
|
|
theme?: {
|
|
/** Primary app color */
|
|
primaryColor?: string
|
|
}
|
|
}
|
|
}
|
|
|
|
// It is always important to ensure you import/export something when augmenting a type
|
|
export {}
|
|
```
|