Revalidate a Next.js Cache Tag after Mutation

#nextjs #revalidation #server-actions #caching

// app/actions/posts.ts
'use server';

import { revalidateTag } from 'next/cache';

export async function publishPost(postId: string) {
  const post = await db.post.update({
    where: {
      id: postId,
    },
    data: {
      published: true,
    },
  });

  revalidateTag('posts', 'max');

  return {
    id: post.id,
    published: post.published,
  };
}