Antigravity Agent
185 lines
5.9 KiB
Markdown
185 lines
5.9 KiB
Markdown
---
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id: wiki-2026-0508-web-rendering-strategies-csr-vs-
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title: Web Rendering Strategies — CSR vs SSR
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category: 10_Wiki/Topics
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status: verified
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canonical_id: self
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aliases: [CSR vs SSR, SSG, ISR, Rendering Strategies, Hybrid Rendering]
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duplicate_of: none
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source_trust_level: A
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confidence_score: 0.9
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verification_status: applied
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tags: [rendering, ssr, csr, ssg, isr, frontend, performance]
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raw_sources: []
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last_reinforced: 2026-05-10
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github_commit: pending
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tech_stack:
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language: typescript
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framework: nextjs
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---
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# Web Rendering Strategies — CSR vs SSR
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## 매 한 줄
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> **"매 어디서 render 매 (server/build/client/edge), 매 언제 (request/build/runtime), 매 무엇 (static/dynamic) — 매 이 3 축 의 매 trade-off"**. 매 2026 매 hybrid (RSC + Streaming SSR + ISR + Edge) 매 default — Next.js / Nuxt / Remix / SvelteKit / Astro 매 모두 mix.
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## 매 핵심
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### 매 5 가지 strategy
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- **CSR (Client-Side Rendering)**: empty HTML + JS bundle → browser 매 render. SPA classic.
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- **SSR (Server-Side Rendering)**: per-request HTML on server.
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- **SSG (Static Site Generation)**: build-time HTML.
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- **ISR (Incremental Static Regeneration)**: SSG + on-demand or time-based revalidate.
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- **RSC (React Server Components, 2023~)**: server-only component, zero JS ship for that part.
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### 매 핵심 metric
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- **TTFB**: server response time.
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- **FCP / LCP**: 매 visible content speed.
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- **TTI**: 매 interactive — hydration cost.
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- **INP**: 매 interaction latency (FID 의 후속, Core Web Vitals 2024+).
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- **JS bundle**: 매 작을 수록 hydration fast.
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### 매 응용
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1. Marketing site → SSG / ISR (Astro, Next).
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2. E-commerce → ISR + dynamic SSR for cart.
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3. Dashboard / admin → CSR or SSR with auth.
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4. Blog → SSG + ISR.
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5. Real-time chat → CSR + SSE/WebSocket.
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6. News site → ISR (revalidate every 60s).
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## 💻 패턴
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### Next.js App Router (RSC + streaming)
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```tsx
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// app/products/[id]/page.tsx — RSC, fetched on server, no JS shipped
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export default async function ProductPage({ params }: { params: { id: string } }) {
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const product = await db.product.findUnique({ where: { id: params.id } });
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return (
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<article>
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<h1>{product.name}</h1>
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<Suspense fallback={<Skeleton />}>
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<Reviews productId={params.id} />
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</Suspense>
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</article>
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);
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}
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```
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### ISR with revalidate
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```tsx
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// Next.js — 매 60s 마다 background regenerate
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export const revalidate = 60;
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export default async function Posts() {
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const posts = await fetch("https://api.example.com/posts").then((r) => r.json());
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return <ul>{posts.map((p) => <li key={p.id}>{p.title}</li>)}</ul>;
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}
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```
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### SSG with `generateStaticParams`
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```tsx
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export async function generateStaticParams() {
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const slugs = await getAllSlugs();
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return slugs.map((slug) => ({ slug }));
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}
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```
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### CSR via dynamic + ssr:false
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```tsx
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"use client";
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import dynamic from "next/dynamic";
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const Chart = dynamic(() => import("./HeavyChart"), { ssr: false });
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export default function Page() { return <Chart />; }
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```
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### Streaming SSR (Suspense)
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```tsx
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// app/dashboard/page.tsx
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export default function Dashboard() {
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return (
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<>
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<Header />
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<Suspense fallback={<Skel />}><SlowWidget /></Suspense>
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<Suspense fallback={<Skel />}><AnotherSlow /></Suspense>
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</>
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);
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}
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// 매 shell 먼저 flush, 매 widget ready 시 stream
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```
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### Edge runtime (Vercel / Cloudflare Workers)
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```ts
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// Next.js — Edge 매 cold start 매 0 에 가까움
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export const runtime = "edge";
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export async function GET(req: Request) {
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const country = req.headers.get("x-vercel-ip-country") ?? "US";
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return new Response(`Hello from ${country}`);
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}
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```
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### Astro islands
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```astro
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---
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// 매 default static, 매 island 만 hydrate
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import Counter from "../components/Counter.tsx";
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const posts = await fetch("...").then((r) => r.json());
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---
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<html>
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<body>
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{posts.map((p) => <article><h2>{p.title}</h2></article>)}
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<Counter client:visible /> <!-- viewport entry 시 hydrate -->
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</body>
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</html>
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```
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### On-demand revalidation
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```ts
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// Next.js — webhook 받으면 매 즉시 invalidate
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import { revalidateTag, revalidatePath } from "next/cache";
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export async function POST(req: Request) {
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const { tag } = await req.json();
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revalidateTag(tag);
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return Response.json({ ok: true });
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}
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```
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## 매 결정 기준
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| 상황 | Approach |
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|---|---|
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| Static marketing | SSG / Astro |
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| Blog with comments | SSG + CSR comments |
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| News feed (changes hourly) | ISR (revalidate=3600) |
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| Product page + cart | RSC + Client island for cart |
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| Real-time dashboard | CSR + WebSocket |
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| Geo-personalized | Edge SSR |
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| Authenticated app | SSR with auth + RSC |
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**기본값**: Next.js App Router (RSC default) + Suspense streaming + ISR for content. 매 client component 매 조심히.
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## 🔗 Graph
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- 부모: [[Frontend Architecture]] · [[Web Performance]]
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- 변형: [[CSR]] · [[SSR]] · [[SSG]] · [[ISR]] · [[RSC]]
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- 응용: [[Next.js App Router]] · [[Nuxt 3]] · [[Astro]] · [[SvelteKit]] · [[Remix]]
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- Adjacent: [[Streaming SSR]] · [[Edge Runtime]] · [[Hydration]] · [[Core Web Vitals]] · [[Islands Architecture]]
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## 🤖 LLM 활용
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**언제**: Rendering strategy 결정, Next.js / Nuxt / Astro setup, Core Web Vitals tuning.
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**언제 X**: Pure native app, internal CLI, embedded device UI.
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## ❌ 안티패턴
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- **CSR for SEO-critical content**: 매 crawler 매 problem.
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- **SSR everywhere without caching**: 매 server CPU 폭발 — ISR / cache 도입.
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- **Hydration mismatch**: server HTML ≠ client render — 매 console error + flicker.
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- **Massive client bundle**: 매 hydration TTI 늦어짐 — RSC / island 활용.
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- **No streaming**: 매 slow API 매 entire page block — Suspense.
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- **Misuse of `"use client"`**: 매 RSC tree 의 매 leaf 만 client.
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## 🧪 검증 / 중복
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- Verified (Next.js 15 docs, Vercel team blog, web.dev rendering guide 2025).
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- 신뢰도 A.
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## 🕓 Changelog
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| 날짜 | 변경 |
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|---|---|
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| 2026-05-08 | Phase 1 |
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| 2026-05-10 | Manual cleanup — RSC, streaming, ISR, edge runtime patterns |
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