Edge Computing: obrabotka dannyh na granitse seti

Edge Computing — vypolnenie koda na edge-serverah CDN, blizhe k polzovatelyam.

Preimuschestva Edge

• Zaderzhka < 50ms globalno
• Masshtabirovanie bez upravleniya serverami
• Snizhenie nagruzki na origin
• Geograficheskaya blizost

Cloudflare Workers

V8 isolates, podderzhka JavaScript, Rust, WebAssembly:

// Cloudflare Workerexport default {  async fetch(request, env) {    const url = new URL(request.url);    const cache = caches.default;        let response = await cache.match(request);    if (!response) {      response = await fetch(url);      await cache.put(request, response.clone());    }        return response;  }};

Vercel Edge Functions

Edge-funktsii v ekosisteme Next.js:

// app/api/hello/route.tsexport const runtime = 'edge';

export async function GET(request: Request) {  const { searchParams } = new URL(request.url);  return Response.json({ message: 'Hello from edge' });}

Use Cases

• A/B testirovanie
• Personalizatsiya kontenta
• Bot detection
• API aggregation
• Real-time analitika