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Data fetching in server-side rendering: combining useRequestHeaders and useFetch

Popularity：25 ℃/2024-07-24 16:33:45

title: Data Fetching in Server-Side Rendering: Combining useRequestHeaders and useFetch
date: 2024/7/24
updated: 2024/7/24
author: cmdragon

excerpt:
Abstract: This article introduces Vue server-side rendering using useRequestHeaders to get request headers such as cookies and authorization, examples show how to combine useFetch in the SSR environment for API calls, note that the browser environment to return the empty object.

categories:

  • front-end development

tags:

  • server-side rendering
  • Vue
  • SSR
  • Data Acquisition
  • API call
  • request header
  • useFetch

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useRequestHeaders is a combinatorial function for accessing incoming request header information, typically used in server-side rendering (SSR) environments. In a browser environment, it will return an empty object, since the request header information is not directly available to the browser.

followinguseRequestHeaders Examples and detailed descriptions of the use of the

basic usage

  1. Get all request headers：

    const headers = useRequestHeaders();

  2. Get only specific request header information (e.g., cookies) ：

    const headers = useRequestHeaders(['cookie']);

Example: UsinguseRequestHeaders go ahead with the authorization

In the server-side rendered page, we can use theuseRequestHeaders to getauthorization request headers and use them for subsequent API calls. The following is an example showing how thepages/ This is realized in the

<template>
  <div>
    <h1>classified information</h1>
    <pre>{{ data }}</pre>
  </div>
</template>

<script setup>
import { useFetch, useRequestHeaders } from 'vue'; // Ensure that the required functions have been imported correctly

// gain authorization request header
const headers = useRequestHeaders(['authorization']);

// utilization $fetch call (programming) API，include authorization The header message goes through.
const { data } = await useFetch('/api/confidential', {
  headers: headers
});
</script>

caveat

  • In a browser environment, theuseRequestHeaders The returned object is null, so the request headers are not available at client rendering time.
  • This function is mainly used for server-side rendered scenes to ensure that they are used in the appropriate environment.
  • utilizationuseFetch When making an API request, you can pass the obtained request header information to the backend for authentication or other processing.

For the rest of the article, please click to jump to the personal blog page or scan the code to follow or WeChat search:Programming Intelligence Front-End to Full-Stack Communication and Growth, read the full article:Data fetching in server-side rendering: combining useRequestHeaders and useFetch | cmdragon's Blog

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