oauth-implementation

OAuth Implementation

Table of Contents

• Overview
• When to Use
• Quick Start
• Reference Guides
• Best Practices

Overview

Implement industry-standard OAuth 2.0 and OpenID Connect authentication flows with JWT tokens, refresh tokens, and secure session management.

When to Use

• User authentication systems
• Third-party API integration
• Single Sign-On (SSO) implementation
• Mobile app authentication
• Microservices security
• Social login integration

Quick Start

Minimal working example:

// oauth-server.js - Complete OAuth 2.0 implementation
const express = require("express");
const

Reference Guides

Detailed implementations in the references/ directory:

Best Practices

✅ DO

• Use PKCE for public clients
• Implement token rotation
• Store tokens securely
• Use HTTPS everywhere
• Validate redirect URIs
• Implement rate limiting
• Use short-lived access tokens
• Log authentication events

❌ DON'T

• Store tokens in localStorage
• Use implicit flow
• Skip state parameter
• Expose client secrets
• Allow open redirects
• Use weak signing keys