Skip to main content 홈 크리에이터 jeremylongshore tons-of-skills-marketplace clerk-core-workflow-a
clerk-core-workflow-a Implement user sign-up and sign-in flows with Clerk.
Use when building authentication UI, customizing sign-in experience,
or implementing OAuth social login.
Trigger with phrases like "clerk sign-in", "clerk sign-up",
"clerk login flow", "clerk OAuth", "clerk social login".
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Zip 다운로드 다운로드 중... 이 저장소의 다른 Skills langchain-deploy-integration Deploy a LangChain 1.0 / LangGraph 1.0 app to Cloud Run, Vercel, or LangServe correctly — with timeouts sized for chain length, cold-start mitigation, SSE anti-buffering headers, and Secret Manager over .env. Use when prepping a first production deploy, debugging a stream that hangs behind a proxy, or diagnosing p99 latency spikes. Trigger with "langchain deploy", "langchain cloud run", "langchain vercel python", "langchain langserve", or "langchain docker".
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Trigger with "langgraph human in loop", "langgraph interrupt_before",
"langgraph approval flow", "Command resume", "langgraph HITL".
jeremylongshore
jeremylongshore/tons-of-skills-marketplace
GitHub 저장소 열기 name clerk-core-workflow-a description Implement user sign-up and sign-in flows with Clerk.
Use when building authentication UI, customizing sign-in experience,
or implementing OAuth social login.
Trigger with phrases like "clerk sign-in", "clerk sign-up",
"clerk login flow", "clerk OAuth", "clerk social login".
allowed-tools Read, Write, Edit, Grep version 1.14.0 license MIT author Jeremy Longshore <jeremy@intentsolutions.io> tags ["saas","clerk","authentication"] compatibility Designed for Claude Code
Clerk Core Workflow A: Sign-Up & Sign-In
Overview
Implement authentication flows with Clerk: pre-built components for rapid setup, custom forms for full UI control, OAuth social login, email/phone verification, and multi-factor authentication.
Prerequisites
Clerk SDK installed and configured (clerk-install-auth completed)
OAuth providers enabled in Dashboard > User & Authentication > Social Connections
Sign-in/sign-up environment variables set
Instructions
Step 1: Pre-Built Components (Quick Start)
import { SignIn } from '@clerk/nextjs'
export default function SignInPage (return (
<div className ="flex min-h-screen items-center justify-center" >
<SignIn
appearance ={{
elements: {
rootBox: 'mx-auto ',
card: 'shadow-xl rounded-2xl ',
headerTitle: 'text-2xl ',
socialButtonsBlockButton: 'rounded-lg ',
},
}}
routing ="path"
path ="/sign-in"
signUpUrl ="/sign-up"
/>
</div >
import
SignUp
from
'@clerk/nextjs'
export
default
function
SignUpPage
return
<div className ="flex min-h-screen items-center justify-center" >
<SignUp routing ="path" path ="/sign-up" signInUrl ="/sign-in" />
</div >
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
Step 2: Custom Sign-In Form (Full UI Control) 'use client'
import { useSignIn } from '@clerk/nextjs'
import { useRouter } from 'next/navigation'
import { useState } from 'react'
export function CustomSignIn (const { signIn, setActive, isLoaded } = useSignIn ()
const router = useRouter ()
const [email, setEmail] = useState ('' )
const [password, setPassword] = useState ('' )
const [error, setError] = useState ('' )
const [loading, setLoading] = useState (false )
if (!isLoaded) return null
const handleSubmit = async (e : React .FormEvent preventDefault ()
setError ('' )
setLoading (true )
try {
const result = await signIn.create ({
identifier : email,
password,
})
if (result.status === 'complete' ) {
await setActive ({ session : result.createdSessionId })
router.push ('/dashboard' )
} else if (result.status === 'needs_second_factor' ) {
router.push ('/sign-in/mfa' )
} else if (result.status === 'needs_identifier' ) {
setError ('Please enter your email address' )
}
} catch (err : any ) {
const clerkError = err.errors ?.[0 ]
switch (clerkError?.code ) {
case 'form_identifier_not_found' :
setError ('No account found with this email' )
break
case 'form_password_incorrect' :
setError ('Incorrect password' )
break
case 'session_exists' :
router.push ('/dashboard' )
break
default :
setError (clerkError?.message || 'Sign-in failed' )
}
} finally {
setLoading (false )
}
}
return (
<form onSubmit ={handleSubmit} className ="space-y-4 max-w-sm mx-auto" >
<input
type ="email" value ={email}
onChange ={e => setEmail(e.target.value)}
placeholder="Email address" required
className="w-full p-2 border rounded"
/>
<input
type ="password" value ={password}
onChange ={e => setPassword(e.target.value)}
placeholder="Password" required
className="w-full p-2 border rounded"
/>
{error && <p className ="text-red-500 text-sm" > {error}</p > }
<button type ="submit" disabled ={loading} className ="w-full p-2 bg-blue-600 text-white rounded" >
{loading ? 'Signing in...' : 'Sign In'}
</button >
</form >
Step 3: OAuth Social Login 'use client'
import { useSignIn } from '@clerk/nextjs'
export function OAuthButtons (const { signIn, isLoaded } = useSignIn ()
if (!isLoaded) return null
const signInWith = (strategy : 'oauth_google' | 'oauth_github' | 'oauth_apple' authenticateWithRedirect ({
strategy,
redirectUrl : '/sso-callback' ,
redirectUrlComplete : '/dashboard' ,
})
}
return (
<div className ="flex flex-col gap-3" >
<button onClick ={() => signInWith('oauth_google')} className="p-2 border rounded">
Continue with Google
</button >
<button onClick ={() => signInWith('oauth_github')} className="p-2 border rounded">
Continue with GitHub
</button >
<button onClick ={() => signInWith('oauth_apple')} className="p-2 border rounded">
Continue with Apple
</button >
</div >
import { AuthenticateWithRedirectCallback } from '@clerk/nextjs'
export default function SSOCallback (return <AuthenticateWithRedirectCallback />
Step 4: Custom Sign-Up with Email Verification 'use client'
import { useSignUp } from '@clerk/nextjs'
import { useRouter } from 'next/navigation'
import { useState } from 'react'
export function CustomSignUp (const { signUp, setActive, isLoaded } = useSignUp ()
const router = useRouter ()
const [step, setStep] = useState<'form' | 'verify' >('form' )
const [email, setEmail] = useState ('' )
const [password, setPassword] = useState ('' )
const [code, setCode] = useState ('' )
const [error, setError] = useState ('' )
if (!isLoaded) return null
const handleSignUp = async (e : React .FormEvent preventDefault ()
try {
await signUp.create ({ emailAddress : email, password })
await signUp.prepareEmailAddressVerification ({ strategy : 'email_code' })
setStep ('verify' )
} catch (err : any ) {
setError (err.errors ?.[0 ]?.longMessage || 'Sign-up failed' )
}
}
const handleVerify = async (e : React .FormEvent preventDefault ()
try {
const result = await signUp.attemptEmailAddressVerification ({ code })
if (result.status === 'complete' ) {
await setActive ({ session : result.createdSessionId })
router.push ('/onboarding' )
}
} catch (err : any ) {
setError (err.errors ?.[0 ]?.longMessage || 'Verification failed' )
}
}
if (step === 'verify' ) {
return (
<form onSubmit ={handleVerify} className ="space-y-4" >
<p > Check your email for a verification code</p >
<input
value ={code} onChange ={e => setCode(e.target.value)}
placeholder="Enter 6-digit code" required
/>
{error && <p className ="text-red-500" > {error}</p > }
<button type ="submit" > Verify Email</button >
</form > return (
<form onSubmit ={handleSignUp} className ="space-y-4" >
<input type ="email" value ={email} onChange ={e => setEmail(e.target.value)} placeholder="Email" required />
<input type ="password" value ={password} onChange ={e => setPassword(e.target.value)} placeholder="Password" required />
{error && <p className ="text-red-500" > {error}</p > }
<button type ="submit" > Create Account</button >
</form >
Step 5: Multi-Factor Authentication (TOTP) 'use client'
import { useSignIn } from '@clerk/nextjs'
import { useRouter } from 'next/navigation'
import { useState } from 'react'
export function MFAVerification (const { signIn, setActive } = useSignIn ()
const router = useRouter ()
const [code, setCode] = useState ('' )
const [error, setError] = useState ('' )
const handleMFA = async (e : React .FormEvent preventDefault ()
try {
const result = await signIn!.attemptSecondFactor ({
strategy : 'totp' ,
code,
})
if (result.status === 'complete' ) {
await setActive!({ session : result.createdSessionId })
router.push ('/dashboard' )
}
} catch (err : any ) {
setError (err.errors ?.[0 ]?.message || 'Invalid code' )
}
}
return (
<form onSubmit ={handleMFA} className ="space-y-4" >
<h2 > Two-Factor Authentication</h2 >
<p > Enter the code from your authenticator app</p >
<input
value ={code} onChange ={e => setCode(e.target.value)}
placeholder="6-digit TOTP code" maxLength={6} required
inputMode="numeric" pattern="[0-9]*"
/>
{error && <p className ="text-red-500" > {error}</p > }
<button type ="submit" > Verify</button >
</form >
Error Handling Error Cause Solution form_identifier_not_foundEmail not registered Show sign-up link or check Clerk instance form_password_incorrectWrong password Display error, offer password reset link session_existsAlready signed in Redirect to dashboard verification_failedWrong or expired code Allow retry; offer "Resend code" button oauth_callback_errorOAuth misconfigured Check redirect URIs in Dashboard > Social Connections identifier_already_signed_inMulti-session not enabled Enable multi-session or redirect to dashboard
Enterprise Considerations
Customize component appearance with Clerk's appearance prop or custom CSS -- matches your design system without building from scratch
For Enterprise SSO (SAML/OIDC), users authenticate through their IdP; the <SignIn> component handles the redirect automatically
Phone number verification uses phone_code strategy instead of email_code
Magic link sign-in uses email_link strategy for passwordless auth
Track sign-up conversion rates by subscribing to user.created webhooks
MFA enrollment is managed via <UserProfile /> component or user.createTOTP() API
Resources
Next Steps Proceed to clerk-core-workflow-b for session management and middleware.
Output
Working Clerk auth integration for the target stack (components + middleware/routes as applicable)
Documented env vars (CLERK_*) and session verification path
Checklist of production-hardening steps completed or explicitly deferred
Examples
Add Clerk to a Next.js App Router app User: Wire Clerk auth into my Next.js App Router app with protected /dashboard.
Skill: installs Clerk packages, adds middleware, wraps layout with ClerkProvider,
protects /dashboard, documents CLERK_SECRET_KEY + NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY.
Diagnose a broken session redirect User: Users bounce between /sign-in and /dashboard in a loop.
Skill: traces middleware matcher, publicRoutes, and afterSignInUrl; fixes redirect cycle.
