How to Avoid Caching Issues in Next.js 13.2 API Endpoints?

How to Solve the Data Caching Issue in Next.js 13.2 API Endpoints

When deploying Next.js applications with API endpoints that retrieve data from external sources, developers might encounter an issue where cached data is displayed consistently, regardless of changes made to the underlying data source. This behavior can be attributed to Next.js's caching mechanism for API Routes and Server Components in production environments.

To resolve this caching issue, Next.js provides several options for controlling the caching behavior.

Using Fetch() with Revalidate or Cache Options

If using fetch() for data fetching, developers can specify the revalidate or cache options to control caching behavior per query:

<code class="js">fetch('https://...', { next: { revalidate: 10 } });
// OR
fetch('https://...', { cache: 'no-store' });</code>

The revalidate option specifies the number of seconds before the cache is refetched. The cache option allows for more granular control, with values such as no-store preventing the browser from caching the response.

Using Route Segment Config for Custom Caching Rules

For cases where fetch() is used with custom caching rules or when using libraries like axios or directly interacting with a database, developers can use Route Segment Config. Route Segment Config allows for defining caching behavior on a per-route basis:

<code class="js">// layout.js OR page.js OR route.js ??

import prisma from "./lib/prisma";

/*
  Bleow option is when you want no caching at all, there are more options
  on the doc depending on your needs. 
*/
export const dynamic = "force-dynamic";

async function getPosts() {
  const posts = await prisma.post.findMany();
  return posts;
}

export default async function Page() {
  const posts = await getPosts();
  // ...
}</code>

By setting dynamic to "force-dynamic", Next.js disables caching for the specified route. Developers can explore additional options based on their specific caching requirements, as documented in the Next.js documentation.

The above is the detailed content of How to Avoid Caching Issues in Next.js 13.2 API Endpoints?. For more information, please follow other related articles on the PHP Chinese website!