この本文は AI(Claude)が読むための原文(英語または中国語)です。日本語訳は順次追加中。

Auth0 Quickstart

Detect your framework and get started with Auth0 authentication.

Step 1: Detect Your Framework

Run this command to identify your framework:

# Check package.json dependencies (Node.js projects)
cat package.json | grep -E "react|next|vue|nuxt|angular|express|fastify|@nestjs|expo"

# Or check project files
ls -la | grep -E "angular.json|vue.config.js|next.config|app.json|Package.swift|build.gradle"

Framework Detection Table:

Framework	Detection	Skill to Use
React (Vite/CRA)	`"react"` in package.json, no Next.js	`auth0-react`
Next.js	`"next"` in package.json	`auth0-nextjs`
Vue.js	`"vue"` in package.json, no Nuxt	`auth0-vue`
Nuxt	`"nuxt"` in package.json	`auth0-nuxt`
Angular	`angular.json` exists or `"@angular/core"`	`auth0-angular`
Express.js	`"express"` in package.json	`auth0-express`
Fastify (web app)	`"fastify"` in package.json, has `@fastify/view`	`auth0-fastify`
Fastify (API)	`"fastify"` in package.json, no view engine	`auth0-fastify-api`
React Native	`"react-native"` or `"expo"` in package.json	`auth0-react-native`
Flask	`"flask"` in requirements.txt, Pipfile, or pyproject.toml	`auth0-flask`
Node.js API	`"express-oauth2-jwt-bearer"` in package.json	`express-oauth2-jwt-bearer`

Don't see your framework? See Tier 2 Frameworks below.

Step 2: Auth0 Account Setup

Install Auth0 CLI

macOS/Linux:

brew install auth0/auth0-cli/auth0

Windows:

scoop install auth0
# Or: choco install auth0-cli

Full installation guide: See CLI Reference

Login to Auth0

auth0 login

This opens your browser to authenticate with Auth0.

Step 3: Create Auth0 Application

Choose application type based on your framework:

Single Page Applications (React, Vue, Angular):

auth0 apps create --name "My App" --type spa \
  --auth-method None \
  --callbacks "http://localhost:3000" \
  --logout-urls "http://localhost:3000" \
  --metadata "created_by=agent_skills"

Regular Web Apps (Next.js, Nuxt, Express, Fastify):

auth0 apps create --name "My App" --type regular \
  --callbacks "http://localhost:3000/api/auth/callback" \
  --logout-urls "http://localhost:3000" \
  --metadata "created_by=agent_skills"

Native Apps (React Native):

auth0 apps create --name "My App" --type native \
  --auth-method None \
  --callbacks "myapp://callback" \
  --logout-urls "myapp://logout" \
  --metadata "created_by=agent_skills"

Get your credentials:

auth0 apps list          # Find your app
auth0 apps show <app-id> # Get client ID and secret

More CLI commands: See CLI Reference

Apply Branding (Optional)

After creating your application, apply branding so the Auth0 Universal Login page matches your app:

auth0 ul update \
  --accent "#YOUR_BRAND_COLOR" \
  --background "#YOUR_BACKGROUND_COLOR" \
  --logo "https://your-app.com/logo.png" \
  --favicon "https://your-app.com/favicon.ico"

This ensures users see your app's branding on the login screen instead of the default Auth0 branding. You can also use the acul-screen-generator skill for full custom login screen design.

Step 4: Use Framework-Specific Skill

Based on your framework detection, use the appropriate skill:

Tier 1 Frameworks (Dedicated Skills)

Frontend:

auth0-react - React SPAs (Vite, Create React App)
auth0-nextjs - Next.js (App Router and Pages Router)
auth0-vue - Vue.js 3 applications
auth0-nuxt - Nuxt 3/4 applications
auth0-angular - Angular 12+ applications

Backend:

auth0-express - Express.js web applications
auth0-flask - Flask web applications
auth0-fastify - Fastify web applications
auth0-fastify-api - Fastify API authentication
express-oauth2-jwt-bearer - Node.js/Express API JWT Bearer validation

Mobile:

auth0-react-native - React Native and Expo (iOS/Android)

Tier 2 Frameworks (Use Auth0 Docs)

Not yet available as separate skills. Use Auth0 documentation:

Frontend:

Backend:

Mobile:

Migration from Other Providers

Migrating from another auth provider? Use the auth0-migration skill.

The migration skill covers:

User export from Firebase, Cognito, Supabase, Clerk, etc.
Bulk import to Auth0
Code migration patterns (before/after examples)
JWT validation updates
Gradual migration strategies

Reference Documentation

Environment Variables

Framework-specific environment variable setup:

Auth0 Concepts

Core concepts and troubleshooting:

CLI Commands

Complete Auth0 CLI reference:

Common Mistakes

Mistake	Fix
Wrong application type	SPAs need "Single Page Application", server apps need "Regular Web Application", mobile needs "Native"
Callback URL not configured	Add your app's callback URL to Allowed Callback URLs in Auth0 Dashboard
Using wrong credentials	Client Secret only needed for Regular Web Apps, not SPAs
Hardcoding credentials in code	Always use environment variables, never commit secrets to git
Not testing locally first	Set up localhost URLs in Auth0 before deploying to production
Mixing application types	Don't use SPA SDK for server-side apps or vice versa

Related Skills

Core Integration

auth0-migration - Migrate from other auth providers

SDK Skills

auth0-spa-js - SPA integration
auth0-react - React SPA integration
auth0-nextjs - Next.js integration
auth0-vue - Vue.js integration
auth0-nuxt - Nuxt 3/4 integration
auth0-angular - Angular integration
auth0-express - Express.js integration
auth0-flask - Flask web app integration
auth0-fastify - Fastify web app integration
auth0-fastify-api - Fastify API integration
express-oauth2-jwt-bearer - Node.js/Express API JWT Bearer validation
auth0-react-native - React Native CLI (bare workflow) integration
auth0-expo - Expo (managed workflow) integration
auth0-android - Android (Kotlin/Java) integration
auth0-swift - iOS/macOS (Swift) integration
auth0-fastapi-api - FastAPI API authentication
auth0-aspnetcore-api - ASP.NET Core API authentication

Advanced Features

auth0-mfa - Multi-Factor Authentication

auth0-quickstart

🎯 このSkillでできること

📦 インストール方法 (3ステップ)