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56 lines
1.4 KiB
Markdown
56 lines
1.4 KiB
Markdown
# App Config
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::StabilityEdge
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::
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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).
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::alert{type=warning}
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Do not put any secret values inside `app.config` file. It is exposed to the user client bundle.
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::
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## Defining App Config
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To expose config and environment variables to the rest of your app, you will need to define configuration in `app.config` file.
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**Example:**
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```ts [app.config.ts]
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export default defineAppConfig({
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theme: {
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primaryColor: '#ababab'
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}
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})
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```
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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.
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```js
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const appConfig = useAppConfig()
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console.log(appConfig.theme)
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```
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<!-- TODO: Document module author for extension -->
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### Manually Typing App Config
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Nuxt tries to automatically generate a typescript interface from provided app config.
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It is also possible to type app config manually:
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```ts [index.d.ts]
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declare module '@nuxt/schema' {
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interface AppConfig {
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/** Theme configuration */
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theme: {
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/** Primary app color */
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primaryColor: string
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}
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}
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}
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// It is always important to ensure you import/export something when augmenting a type
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export {}
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```
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