mirror of
https://github.com/nuxt/nuxt.git
synced 2024-11-24 22:55:13 +00:00
49 lines
2.1 KiB
Markdown
49 lines
2.1 KiB
Markdown
---
|
|
title: "$fetch"
|
|
description: Nuxt uses ofetch to expose globally the $fetch helper for making HTTP requests.
|
|
---
|
|
|
|
# `$fetch`
|
|
|
|
Nuxt uses [ofetch](https://github.com/unjs/ofetch) to expose globally the `$fetch` helper for making HTTP requests within your Vue app or API routes.
|
|
|
|
During server-side rendering, calling `$fetch` to fetch your internal [API routes](/docs/guide/directory-structure/server) will directly call the relevant function (emulating the request), **saving an additional API call**.
|
|
|
|
However, using `$fetch` in components without wrapping it with [`useAsyncData`](/docs/api/composables/use-async-data) causes fetching the data twice: initially on the server, then again on the client-side during hydration, because `$fetch` does not transfer state from the server to the client. Thus, the fetch will be executed on both sides because the client has to get the data again.
|
|
|
|
We recommend to use [`useFetch`](https://nuxt.com/docs/api/composables/use-fetch) or [`useAsyncData`](https://nuxt.com/docs/api/composables/use-async-data) + `$fetch` to prevent double data fetching when fetching the component data.
|
|
|
|
```vue
|
|
<script setup lang="ts">
|
|
// During SSR data is fetched twice, once on the server and once on the client.
|
|
const dataTwice = await $fetch('/api/item')
|
|
|
|
// During SSR data is fetched only on the server side and transferred to the client.
|
|
const { data } = await useAsyncData('item', () => $fetch('/api/item'))
|
|
|
|
// You can also useFetch as shortcut of useAsyncData + $fetch
|
|
const { data } = await useFetch('/api/item')
|
|
</script>
|
|
```
|
|
|
|
:ReadMore{link="/docs/getting-started/data-fetching"}
|
|
|
|
You can use `$fetch` for any method that are executed only on client-side.
|
|
|
|
```vue
|
|
<script setup lang="ts">
|
|
function contactForm() {
|
|
$fetch('/api/contact', {
|
|
method: 'POST',
|
|
body: { hello: 'world '}
|
|
})
|
|
}
|
|
</script>
|
|
|
|
<template>
|
|
<button @click="contactForm">Contact</button>
|
|
</template>
|
|
```
|
|
|
|
`$fetch` is the preferred way to make HTTP calls in Nuxt instead of [@nuxt/http](https://github.com/nuxt/http) and [@nuxtjs/axios](https://github.com/nuxt-community/axios-module) that are made for Nuxt 2.
|