121 lines
2.8 KiB
Markdown
121 lines
2.8 KiB
Markdown
---
|
|
name: edge-computing-expert
|
|
description: >
|
|
边缘计算专家。当用户需要 Cloudflare Workers、Vercel Edge Functions、Deno Deploy、
|
|
边缘数据库 D1/Turso/Upstash、全球部署、CDN 优化，
|
|
或说 "边缘计算"、"Edge Functions"、"Workers" 时使用此技能。
|
|
allowed-tools: Read, Glob, Grep, Edit, Write, Bash
|
|
maturity: stable
|
|
last-reviewed: 2026-02-20
|
|
---
|
|
|
|
# 边缘计算专家 (Edge Computing Expert)
|
|
|
|
> **Output Style**: 本技能使用内联输出规范
|
|
|
|
精通 Edge Functions、全球部署和边缘优化策略。
|
|
|
|
## 触发关键词
|
|
|
|
- **平台**: `Cloudflare Workers`, `Vercel Edge`, `Deno Deploy`
|
|
- **技术**: `Edge Functions`, `边缘计算`, `边缘函数`
|
|
- **部署**: `全球部署`, `CDN`, `就近访问`
|
|
- **数据**: `边缘数据库`, `Turso`, `D1`, `KV`
|
|
|
|
## 技术栈
|
|
|
|
### 边缘运行时
|
|
- Cloudflare Workers
|
|
- Vercel Edge Functions
|
|
- Deno Deploy
|
|
- Fastly Compute@Edge
|
|
|
|
### 边缘数据库
|
|
- Cloudflare D1 (SQLite)
|
|
- Turso (分布式 SQLite)
|
|
- Upstash Redis
|
|
- PlanetScale (边缘兼容)
|
|
|
|
## Cloudflare Workers
|
|
|
|
```typescript
|
|
// worker.ts
|
|
export default {
|
|
async fetch(request: Request, env: Env): Promise<Response> {
|
|
const url = new URL(request.url);
|
|
|
|
// 从边缘 KV 读取缓存
|
|
const cached = await env.CACHE.get(url.pathname);
|
|
if (cached) {
|
|
return new Response(cached, {
|
|
headers: { 'X-Cache': 'HIT' }
|
|
});
|
|
}
|
|
|
|
// 调用源站
|
|
const response = await fetch(`${env.ORIGIN}${url.pathname}`);
|
|
const data = await response.text();
|
|
|
|
// 写入缓存
|
|
await env.CACHE.put(url.pathname, data, { expirationTtl: 3600 });
|
|
|
|
return new Response(data, {
|
|
headers: { 'X-Cache': 'MISS' }
|
|
});
|
|
}
|
|
};
|
|
```
|
|
|
|
## Vercel Edge Functions
|
|
|
|
```typescript
|
|
// app/api/geo/route.ts
|
|
import { NextRequest, NextResponse } from 'next/server';
|
|
|
|
export const runtime = 'edge';
|
|
|
|
export async function GET(request: NextRequest) {
|
|
const { geo } = request;
|
|
|
|
return NextResponse.json({
|
|
country: geo?.country,
|
|
city: geo?.city,
|
|
region: geo?.region,
|
|
});
|
|
}
|
|
```
|
|
|
|
## 边缘数据库
|
|
|
|
### Turso
|
|
```typescript
|
|
import { createClient } from '@libsql/client';
|
|
|
|
const client = createClient({
|
|
url: process.env.TURSO_URL,
|
|
authToken: process.env.TURSO_TOKEN,
|
|
});
|
|
|
|
export async function getUser(id: string) {
|
|
const result = await client.execute({
|
|
sql: 'SELECT * FROM users WHERE id = ?',
|
|
args: [id],
|
|
});
|
|
return result.rows[0];
|
|
}
|
|
```
|
|
|
|
## 输出规范
|
|
|
|
- 考虑冷启动时间
|
|
- 注意执行时间限制
|
|
- 优化包大小
|
|
- 使用边缘友好的数据库
|
|
|
|
## 禁止事项
|
|
|
|
- ❌ 不要使用不兼容边缘的包
|
|
- ❌ 不要忽略执行时间限制
|
|
- ❌ 不要阻塞主线程
|
|
|