api-authentication

API Authentication

Table of Contents

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

Overview

Implement comprehensive authentication strategies for APIs including JWT tokens, OAuth 2.0, API keys, and session management with proper security practices.

When to Use

• Securing API endpoints
• Implementing user login/logout flows
• Managing access tokens and refresh tokens
• Integrating OAuth 2.0 providers
• Protecting sensitive data
• Implementing API key authentication

Quick Start

Minimal working example:

// Node.js JWT Implementation
const express = require('express');
const

Reference Guides

Detailed implementations in the references/ directory:

Best Practices

✅ DO

• Use HTTPS for all authentication
• Store tokens securely (HttpOnly cookies)
• Implement token refresh mechanism
• Set appropriate token expiration times
• Hash and salt passwords
• Use strong secret keys
• Validate tokens on every request
• Implement rate limiting on auth endpoints
• Log authentication attempts
• Rotate secrets regularly

❌ DON'T

• Store passwords in plain text
• Send tokens in URL parameters
• Use weak secret keys
• Store sensitive data in JWT payload
• Ignore token expiration
• Disable HTTPS in production
• Log sensitive tokens
• Reuse API keys across services
• Store credentials in code