Fetch next revalidate

Next.js extends the Web API to allow each request on the server to set its own persistent caching and revalidation semantics.

In the browser, the option indicates how a fetch request will interact with the browser's HTTP cache. With this extension, indicates how a server-side fetch request will interact with the framework's persistent Data Cache.

You can call with and directly within Server Components.

Since Next.js extends the Web API, you can use any of the native options available.

Configure how the request should interact with Next.js Data Cache.

• (default): Next.js fetches the resource from the remote server on every request in development, but will fetch once during because the route will be statically prerendered. If Dynamic APIs are detected on the route, Next.js will fetch the resource on every request.
• : Next.js fetches the resource from the remote server on every request, even if Dynamic APIs are not detected on the route.
• : Next.js looks for a matching request in its Data Cache.
  • If there is a match and it is fresh, it will be returned from the cache.
  • If there is no match or a stale match, Next.js will fetch the resource from the re
    

    Data Fetching, Caching, and Revalidating

    Data fetching is a core part of any application. This page goes through how you can fetch, cache, and revalidate data in React and Next.js.

    There are four ways you can fetch data:

    1. On the server, with
    2. On the server, with third-party libraries
    3. On the client, via a Route Handler
    4. On the client, with third-party libraries.

    Fetching Data on the Server with

    Next.js extends the native Web API to allow you to configure the caching and revalidating behavior for each fetch request on the server. React extends to automatically memoize fetch requests while rendering a React component tree.

    You can use with / in Server Components, in Route Handlers, and in Server Actions.

    For example:

    Good to know:

    • Next.js provides helpful functions you may need when fetching data in Server Components such as and . These will cause the route to be dynamically rendered as they rely on request time information.
    • In Route handlers, requests are not memoized as Route Handlers are not part of the React component tree.
    • In Server Actions, requests are not cached (defaults ).
    • To use / in a Server Component with TypeScript, you'll need to use TypeScri

      A detailed guide to data fetching in Next.js 14

      Next.js has evolved rapidly since its inception, constantly introducing innovative ways to control data fetching—a crucial aspect of modern web development.

      This evolution aims to improve performance, enhance SEO, and provide developers with flexible options to suit various portraying strategies.

      In this article, we delve into the progression of information fetching techniques in Next.js, from its early versions up to the latest advancements in version 14.

      Earlier approach to data fetching with getInitialProps

      In the early stages of Next.js, prior to version 9.3, was the go-to way for fetching data on the server side.

      This function allowed developers to fetch necessary data for a page before it was rendered, ensuring that the server could deliver a complete HTML page to the client, pre-populated with all the required facts. This approach significantly benefited SEO and initial page load times.

      Consider fetching a list of blog posts for a homepage:

      In this code snippet, fetches blog posts server-side, ensuring the data is ready before the page is served to the user.

      Introducing getServerSideProps and getStaticProps in Next.js 9.3

      
      
      
      

      How to use Next.Js Fetch API

      • Author: Md. Saad
      • Published at: October 13, 2024
      • Updated at: February 13, 2025

      Introduction

      In modern web development, Next.js has gained immense popularity for its features like server-side rendering (SSR), static site generation (SSG), and API routes. One of the most common tasks in any web app is fetching data from external sources. This blog will explore how to effectively use the Fetch API in Next.js for client-side and server-side data fetching.

      Introduction to Fetch API

      The Fetch API is a modern interface that allows you to make HTTP requests to servers, handling responses with promises. It is widely supported in most modern browsers and can be used for tasks like fetching data from an API or sending data to a server.

      Basic Example of Fetch API

      Next.js enhances the Web's fetch() API by enabling server-side requests to define custom caching strategies and revalidation behaviour for each request.

      We can call fetch with async and await directly within Server Components.

      export default async function Page() {
      let data = await fetch('https://api.vercel.app/blog')
      let posts = await data.json()
      return (
      <ul&