data-fetching

Next.js数据获取——服务器操作、缓存、重新验证

SKILL.md

--- frontmatter

name: data-fetching
description: "Next.js data fetching - Server actions, caching, revalidation"
sasmp_version: "1.3.0"
bonded_agent: nextjs-expert
bond_type: PRIMARY_BOND

Data Fetching Skill

Overview

Modern data fetching in Next.js with server actions, caching strategies, and revalidation.

Capabilities

•Server Actions: 'use server' for mutations
•Caching: Automatic request memoization
•Revalidation: Time-based and on-demand
•Streaming: Progressive rendering
•Parallel Fetching: Promise.all patterns

Examples

tsx

// Server Action
'use server'

export async function createPost(formData: FormData) {
  const title = formData.get('title')
  await db.posts.create({ title })
  revalidatePath('/posts')
}

// Data fetching with caching
async function getData() {
  const res = await fetch('https://api.example.com/data', {
    next: { revalidate: 3600 } // Revalidate every hour
  })
  return res.json()
}

Caching Options

•cache: 'force-cache' - Default, cached
•cache: 'no-store' - No caching
•next: { revalidate: N } - Revalidate after N seconds