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Clerk: Drop-in auth UI, Organizations, User management, JWT templates, webhooks, Next.js middleware integration.
기본적으로 소스를 먼저 확인하는 Prompt가 선택됩니다. 직접 명령으로 전환하거나 로컬 사본을 다운로드할 수도 있습니다.
설치 여부를 결정하기 전에 SKILL.md와 SkillsMP에 표시된 보조 파일을 읽어 보세요.
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
직접 명령은 검토 Prompt를 거치지 않습니다. 실행하기 전에 소스를 확인하세요.
npx skills add https://github.com/mikailustuner/OmniRule --skill clerk-auth명령은 한 줄로 유지됩니다. 복사하기 전에 가로로 스크롤해 전체 내용을 확인하세요.
로컬 사본을 원하시나요? SkillsMP에서 현재 제공할 수 있는 파일을 다운로드하세요.
SKILL.md 표시 중
SOC 직업 분류 기준
| name | clerk-auth |
| description | Clerk: Drop-in auth UI, Organizations, User management, JWT templates, webhooks, Next.js middleware integration. |
| triggers | {"extensions":[".ts",".tsx"],"directories":["auth/"],"filenames":["middleware.ts","clerk.ts"],"keywords":["clerk","clerkMiddleware","currentUser","auth()","useUser","useAuth","SignIn","SignUp","UserButton","OrganizationSwitcher"]} |
| auto_load_when | Using Clerk for authentication |
| agent | security-officer |
| tools | ["Read","Write","Bash"] |
Version: Clerk v6 (Next.js App Router) | Focus: Middleware, components, server helpers
npm install @clerk/nextjs
// .env.local
NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=pk_...
CLERK_SECRET_KEY=sk_...
NEXT_PUBLIC_CLERK_SIGN_IN_URL=/sign-in
NEXT_PUBLIC_CLERK_SIGN_UP_URL=/sign-up
NEXT_PUBLIC_CLERK_AFTER_SIGN_IN_URL=/dashboard
NEXT_PUBLIC_CLERK_AFTER_SIGN_UP_URL=/onboarding
// app/layout.tsx
import { ClerkProvider } from '@clerk/nextjs';
export default function RootLayout({ children }) {
return <ClerkProvider><html><body>{children}</body></html></ClerkProvider>;
}
// middleware.ts
import { clerkMiddleware, createRouteMatcher } from '@clerk/nextjs/server';
const isPublicRoute = createRouteMatcher([
'/', '/sign-in(.*)', '/sign-up(.*)', '/api/webhooks/(.*)',
]);
export default clerkMiddleware((auth, request) => {
if (!isPublicRoute(request)) auth().protect();
});
export const config = { matcher: ['/((?!.*\\..*|_next).*)', '/', '/(api|trpc)(.*)'] };
// Server Component
import { auth, currentUser } from '@clerk/nextjs/server';
export default async function DashboardPage() {
const { userId, orgId, sessionClaims } = auth();
if (!userId) redirect('/sign-in');
const user = await currentUser();
return <div>Hello {user?.firstName}</div>;
}
// Server Action
'use server';
import { auth } from '@clerk/nextjs/server';
export async function createPost(data: FormData) {
const { userId } = auth();
if (!userId) throw new Error('Unauthorized');
return db.post.create({ data: { ...Object.fromEntries(data), authorId: userId } });
}
// Route Handler
import { auth } from ;
() {
{ userId } = ();
(!userId) (, { : });
data = (userId);
.(data);
}
'use client';
import { useUser, useAuth, useClerk } from '@clerk/nextjs';
export function UserProfile() {
const { user, isLoaded, isSignedIn } = useUser();
const { userId, sessionId, getToken } = useAuth();
const { signOut } = useClerk();
if (!isLoaded) return <Spinner />;
if (!isSignedIn) return <RedirectToSignIn />;
// Get JWT for external API calls
const token = await getToken({ template: 'my-jwt-template' });
return (
<div>
<p>{user.fullName}</p>
<button onClick={() => signOut()}>Sign out</button>
</div>
);
}
import { SignIn, SignUp, UserButton, OrganizationSwitcher } from '@clerk/nextjs';
// Auth pages
// app/sign-in/[[...sign-in]]/page.tsx
export default function SignInPage() {
return <SignIn />;
}
// Navigation bar components
export function Navbar() {
return (
<nav>
<UserButton afterSignOutUrl="/" /> {/* avatar + dropdown */}
<OrganizationSwitcher /> {/* org picker (if using orgs) */}
</nav>
);
}
// app/api/webhooks/clerk/route.ts
import { Webhook } from 'svix';
import { WebhookEvent } from '@clerk/nextjs/server';
export async function POST(req: Request) {
const body = await req.text();
const svix_id = req.headers.get('svix-id')!;
const svix_timestamp = req.headers.get('svix-timestamp')!;
const svix_signature = req.headers.get('svix-signature')!;
const wh = new Webhook(process.env.CLERK_WEBHOOK_SECRET!);
let event: WebhookEvent;
try {
event = wh.verify(body, { 'svix-id': svix_id, 'svix-timestamp': svix_timestamp, 'svix-signature': svix_signature }) as WebhookEvent;
} catch { return new Response('Invalid signature', { : }); }
(event. === ) {
db..({ : { : event.., : event..[]. } });
}
(event. === ) {
db..({ : { : event..! } });
}
();
}
| Need | Clerk API |
|---|---|
| Protect all routes | clerkMiddleware + createRouteMatcher |
| Get userId (server) | auth().userId |
| Get full user (server) | currentUser() |
| Client user info | useUser() hook |
| Sign out | useClerk().signOut() |
| JWT for 3rd party API | getToken({ template: 'name' }) |
| Sync to DB | Webhooks via svix |
❌ Protecting routes with middleware only for some pages
✅ Blocklist approach: allow only specific public routes explicitly
❌ Calling currentUser() in every component (slow N+1)
✅ Call once at page level, pass as prop or use React Context
❌ Trusting userId from client without re-verifying
✅ Always use auth() server-side — client can be spoofed
❌ Building custom user sync without webhooks
✅ Use clerk webhooks (svix) to keep your DB in sync