$ -weight: 500;">npm -weight: 500;">install @auth0/auth0-react
-weight: 500;">npm -weight: 500;">install @auth0/auth0-react
-weight: 500;">npm -weight: 500;">install @auth0/auth0-react
import { Auth0Provider, useAuth0 } from "@auth0/auth0-react"; function App() { return ( <Auth0Provider domain="YOUR_DOMAIN.auth0.com" clientId="YOUR_CLIENT_ID" authorizationParams={{ redirect_uri: window.location.origin }} > <LoginButton /> </Auth0Provider> );
} function LoginButton() { const { loginWithRedirect, logout, user, isAuthenticated } = useAuth0(); if (isAuthenticated) { return ( <div> <p>Welcome, {user.name}!</p> <button onClick={() => logout()}>Log out</button> </div> ); } return <button onClick={() => loginWithRedirect()}>Log in</button>;
}
import { Auth0Provider, useAuth0 } from "@auth0/auth0-react"; function App() { return ( <Auth0Provider domain="YOUR_DOMAIN.auth0.com" clientId="YOUR_CLIENT_ID" authorizationParams={{ redirect_uri: window.location.origin }} > <LoginButton /> </Auth0Provider> );
} function LoginButton() { const { loginWithRedirect, logout, user, isAuthenticated } = useAuth0(); if (isAuthenticated) { return ( <div> <p>Welcome, {user.name}!</p> <button onClick={() => logout()}>Log out</button> </div> ); } return <button onClick={() => loginWithRedirect()}>Log in</button>;
}
import { Auth0Provider, useAuth0 } from "@auth0/auth0-react"; function App() { return ( <Auth0Provider domain="YOUR_DOMAIN.auth0.com" clientId="YOUR_CLIENT_ID" authorizationParams={{ redirect_uri: window.location.origin }} > <LoginButton /> </Auth0Provider> );
} function LoginButton() { const { loginWithRedirect, logout, user, isAuthenticated } = useAuth0(); if (isAuthenticated) { return ( <div> <p>Welcome, {user.name}!</p> <button onClick={() => logout()}>Log out</button> </div> ); } return <button onClick={() => loginWithRedirect()}>Log in</button>;
}
import express from "express";
import { auth } from "express-oauth2-jwt-bearer"; const app = express(); const checkJwt = auth({ audience: "https://your-api.example.com", issuerBaseURL: "https://YOUR_DOMAIN.auth0.com/",
}); app.get("/api/private", checkJwt, (req, res) => { res.json({ message: "This is protected", user: req.auth.payload.sub });
}); app.listen(3000);
import express from "express";
import { auth } from "express-oauth2-jwt-bearer"; const app = express(); const checkJwt = auth({ audience: "https://your-api.example.com", issuerBaseURL: "https://YOUR_DOMAIN.auth0.com/",
}); app.get("/api/private", checkJwt, (req, res) => { res.json({ message: "This is protected", user: req.auth.payload.sub });
}); app.listen(3000);
import express from "express";
import { auth } from "express-oauth2-jwt-bearer"; const app = express(); const checkJwt = auth({ audience: "https://your-api.example.com", issuerBaseURL: "https://YOUR_DOMAIN.auth0.com/",
}); app.get("/api/private", checkJwt, (req, res) => { res.json({ message: "This is protected", user: req.auth.payload.sub });
}); app.listen(3000);
from authlib.integrations.flask_client import OAuth oauth = OAuth(app)
auth0 = oauth.register( "auth0", client_id="YOUR_CLIENT_ID", client_secret="YOUR_SECRET", api_base_url=f"https://YOUR_DOMAIN.auth0.com", access_token_url=f"https://YOUR_DOMAIN.auth0.com/oauth/token", authorize_url=f"https://YOUR_DOMAIN.auth0.com/authorize", client_kwargs={"scope": "openid profile email"},
) @app.route("/login")
def login(): return auth0.authorize_redirect(redirect_uri="http://localhost:3000/callback")
from authlib.integrations.flask_client import OAuth oauth = OAuth(app)
auth0 = oauth.register( "auth0", client_id="YOUR_CLIENT_ID", client_secret="YOUR_SECRET", api_base_url=f"https://YOUR_DOMAIN.auth0.com", access_token_url=f"https://YOUR_DOMAIN.auth0.com/oauth/token", authorize_url=f"https://YOUR_DOMAIN.auth0.com/authorize", client_kwargs={"scope": "openid profile email"},
) @app.route("/login")
def login(): return auth0.authorize_redirect(redirect_uri="http://localhost:3000/callback")
from authlib.integrations.flask_client import OAuth oauth = OAuth(app)
auth0 = oauth.register( "auth0", client_id="YOUR_CLIENT_ID", client_secret="YOUR_SECRET", api_base_url=f"https://YOUR_DOMAIN.auth0.com", access_token_url=f"https://YOUR_DOMAIN.auth0.com/oauth/token", authorize_url=f"https://YOUR_DOMAIN.auth0.com/authorize", client_kwargs={"scope": "openid profile email"},
) @app.route("/login")
def login(): return auth0.authorize_redirect(redirect_uri="http://localhost:3000/callback") - 25,000 monthly active users
- Social login — Google, GitHub, Facebook, Apple, Twitter
- Passwordless — magic links and OTP via email/SMS
- Multi-factor authentication — TOTP, SMS, email
- Universal Login — hosted login page, customizable
- Role-based access control — permissions and roles out of the box
- Up to 2 organizations — B2B multi-tenancy support
- Unlimited logins — no per-login charges - OWASP top 10 vulnerabilities
- Token rotation and revocation
- Brute force detection
- Credential stuffing protection
- GDPR compliance for user data
- Password breach detection (Have I Been Pwned integration) - 30+ Free APIs Every Developer Should Bookmark
- Cloudinary Has a Free API
- NASA Has a Free API
- OpenAI Has a Free API Tier
- Stripe Has a Free API
- Firebase Has a Free Tier
- Supabase Has a Free Tier
- SendGrid Has a Free API
- Twilio Has a Free Trial API
- GitHub Has a Free API
- Mapbox Has a Free Tier
- MongoDB Atlas Has a Free API
- Algolia Has a Free API
- PlanetScale Has a Free API
- Resend Has a Free API
- Upstash Has a Free API
