useRequestFetch
使用 useRequestFetch 可组合组件转发服务器端获取请求的上下文和标头。
你可以使用 useRequestFetch 在发出服务器端获取请求时转发请求上下文和标头。
¥You can use useRequestFetch to forward the request context and headers when making server-side fetch requests.
发出客户端获取请求时，浏览器会自动发送必要的标头。但是，在服务端渲染期间发出请求时，出于安全考虑，我们需要手动转发标头。
¥When making a client-side fetch request, the browser automatically sends the necessary headers. However, when making a request during server-side rendering, due to security considerations, we need to forward the headers manually.
在请求中，如果标头为 not meant to be forwarded，则标头将为 not be included。例如，这些标头包括：
transfer-encoding、connection、keep-alive、upgrade、expect、host、acceptuseFetch 可组合项在后台使用 useRequestFetch 自动转发请求上下文和标头。<script setup lang="ts">
// This will forward the user's headers to the `/api/cookies` event handler
// Result: { cookies: { foo: 'bar' } }
const requestFetch = useRequestFetch()
const { data: forwarded } = await useAsyncData(() => requestFetch('/api/cookies'))
// This will NOT forward anything
// Result: { cookies: {} }
const { data: notForwarded } = await useAsyncData(() => $fetch('/api/cookies'))
</script>
export default defineEventHandler((event) => {
const cookies = parseCookies(event)
return { cookies }
})
在浏览器中，客户端导航时，
useRequestFetch 的行为与常规 $fetch 相同。