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Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: Daniel Roe <daniel@roe.dev>
48 lines
1.5 KiB
Markdown
48 lines
1.5 KiB
Markdown
---
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title: useLazyAsyncData
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description: This wrapper around useAsyncData triggers navigation immediately.
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links:
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- label: Source
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icon: i-simple-icons-github
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to: https://github.com/nuxt/nuxt/blob/main/packages/nuxt/src/app/composables/asyncData.ts
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size: xs
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---
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## Description
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By default, [`useAsyncData`](/docs/api/composables/use-async-data) blocks navigation until its async handler is resolved. `useLazyAsyncData` provides a wrapper around [`useAsyncData`](/docs/api/composables/use-async-data) that triggers navigation before the handler is resolved by setting the `lazy` option to `true`.
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::callout
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`useLazyAsyncData` has the same signature as [`useAsyncData`](/docs/api/composables/use-async-data).
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::
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:read-more{to="/docs/api/composables/use-async-data"}
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## Example
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```vue [pages/index.vue]
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<script setup lang="ts">
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/* Navigation will occur before fetching is complete.
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Handle pending and error states directly within your component's template
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*/
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const { pending, data: count } = await useLazyAsyncData('count', () => $fetch('/api/count'))
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watch(count, (newCount) => {
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// Because count might start out null, you won't have access
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// to its contents immediately, but you can watch it.
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})
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</script>
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<template>
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<div>
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{{ pending ? 'Loading' : count }}
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</div>
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</template>
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```
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::callout{color="amber" icon="i-ph-warning-duotone"}
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`useLazyAsyncData` is a reserved function name transformed by the compiler, so you should not name your own function `useLazyAsyncData`.
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::
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:read-more{to="/docs/getting-started/data-fetching#uselazyasyncdata"}
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