Authentication is the process of validating that users are who they claim to be. Authentication is the first step in any security process. These developer guides provide you with detailed instructions on how to implement authentication using Auth0 by Okta in Express.js web apps written in JavaScript.

Express.js Developer Guides

Additional Resources

Visit "Get Started with Express.js Apps" to explore other developer resources that can get you up and running with using Auth0 in Express.js, such as code samples, quickstarts, SDK libraries, blog posts, and videos.

If you are new to identity and security, check out any of the following resources to get started:

• Live Demo: Auth0 for Customer Identity

• 7 Things You Need to Know About Passwordless Authentication

• Passwordless Authentication Checklist

• Authentication Survival Guide

• The JSON Web Token (JWT) Handbook

• OAuth2 and OpenID Connect: The Professional Guide

• The OpenID Connect Handbook

• Modern Authentication Demystified

• Everything About Sign in with Apple