Learn how to add authorization to ASP.NET Core Web APIs using the Authorize attribute.

ASP.NET Core Web API Security: Implement Authorization with Auth0

Learn how to add authorization to Express.js using JavaScript and Node.js middleware.

Node.js API Authorization By Example

Learn how to add authorization to Express.js using TypeScript and Node.js middleware.

Node.js API Authorization By Example: TypeScript Edition

Learn how to add authorization to NestJS using Passport.js and guards.

NestJS API Security: Implement Authorization with Auth0

Learn how to implement token-based authorization and Role-Based Access Control (RBAC) in a Ruby on Rails API server using Auth0.

Rails API Authorization By Example

Learn how to add authorization to Spring Web using Spring Security.

Spring Web API Security: Implement Authorization with Auth0

Learn how to add user authentication to Flutter apps using OAuth 2.0 and OpenID Connect.

Flutter User Authentication: Dart Developer Guide

Learn how to add authentication features to Ionic Angular with Capacitor mobile applications: add login, logout, and sign-up.

Ionic Angular Authentication By Example

Learn how to use Auth0 to implement basic login and logout in iOS apps built with SwiftUI.

iOS User Authentication: SwiftUI Developer Guide

A step-by-step guide on using Auth0 and Swift to implement login/logout and use user metadata in iOS apps.

iOS User Authentication: Developer Guide

Learn how to add authentication to React Native Android apps with Auth0.

React Native User Authentication: Android Developer Guide

Learn how to add authentication to React Native iOS apps with Auth0.

React Native User Authentication: iOS Developer Guide

Learn how to call a protected API from your Expo mobile application.

Call a Protected API Endpoint from an Expo Mobile App

Learn how to add user authentication to Angular using Observables and HTTP Interceptors. Learn how to use Auth0 to handle token-based user authentication in Angular using standalone components.

Angular Authentication By Example: Standalone Components

Learn how to add user authentication to Angular using Observables and HTTP Interceptors. Learn how to use Auth0 to handle token-based user authentication in Angular.

Angular Authentication By Example

Learn how to add authentication features to React v18 apps: add login, logout, and sign-up. Learn how to integrate Auth0 with React Router v6 to protect React pages using router guards and how to call protected APIs.

React Authentication By Example: Using React Router 6

Learn how to add authentication features to React v17 apps: add login, logout, and sign-up. Learn how to integrate Auth0 with React Router v5 to protect React pages using router guards and how to call protected APIs.

React Authentication By Example

Learn how to deploy React applications secured with Auth0 to Vercel step by step.

How to Deploy a React App Secured By Auth0 to Vercel

Learn how to add authentication features to Vue.js apps: add login, logout, and sign-up. Learn how to protect Vue.js pages using router guards and how to call protected APIs.

Vue.js Authentication By Example: Composition API

Learn how to add authentication features to Vue.js apps using Options API: add login, logout, and sign-up. Learn how to protect Vue.js pages using router guards and how to call protected APIs.

Vue.js Authentication By Example: Options API

Learn how to add authentication features to Vue.js 2 apps: add login, logout, and sign-up. Learn how to protect Vue.js pages using router guards and how to call protected APIs.

Vue.js Authentication 2 By Example

Learn how to deploy Vue.js applications secured with Auth0 to Vercel step by step.

How to Deploy a Vue.js App Secured By Auth0 to Vercel

Learn how to add authentication to your ASP.NET Core MVC Application by using Auth0.

ASP.NET Core MVC Security: Implement User Authentication with Auth0

Learn how to add user authentication to Node.js web apps built with Express using middleware.

Node.js Security: Implement User Authentication with Auth0

Python code that implements user login, logout and sign-up features to secure a Flask Web Application using Auth0.

Flask Authentication By Example

Learn how to deploy Next.js applications secured with Auth0 to Vercel step by step.

How to Deploy a Next.js App Secured By Auth0 to Vercel

Learn how to add login, logout, and sign-up features to a Rails web application using Auth0. Learn how to secure Rails Controller's actions and how to make secure API calls from a Rails app.

Developer Guides