# refreshNuxtData
> Refresh all or specific asyncData instances in Nuxt
`refreshNuxtData` is used to refetch all or specific `asyncData` instances, including those from [`useAsyncData`](/docs/4.x/api/composables/use-async-data), [`useLazyAsyncData`](/docs/4.x/api/composables/use-lazy-async-data), [`useFetch`](/docs/4.x/api/composables/use-fetch), and [`useLazyFetch`](/docs/4.x/api/composables/use-lazy-fetch).
If your component is cached by `` and enters a deactivated state, the `asyncData` inside the component will still be refetched until the component is unmounted.
## Type
```ts [Signature]
export function refreshNuxtData (keys?: string | string[])
```
## Parameters
- `keys`: A single string or an array of strings as `keys` that are used to fetch the data. This parameter is **optional**. All [`useAsyncData`](/docs/4.x/api/composables/use-async-data) and [`useFetch`](/docs/4.x/api/composables/use-fetch) keys are re-fetched when no `keys` are explicitly specified.
## Return Values
`refreshNuxtData` returns a promise, resolving when all or specific `asyncData` instances have been refreshed.
## Examples
### Refresh All Data
This example below refreshes all data being fetched using `useAsyncData` and `useFetch` in Nuxt application.
```vue [app/pages/some-page.vue]
```
### Refresh Specific Data
This example below refreshes only data where the key matches to `count` and `user`.
```vue [app/pages/some-page.vue]
Loading
```
If you have access to the `asyncData` instance, it is recommended to use its `refresh` or `execute` method as the preferred way to refetch the data.
---
- [Source](https://github.com/nuxt/nuxt/blob/main/packages/nuxt/src/app/composables/asyncData.ts)