Session Management

Table of Contents

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

Overview

Implement comprehensive session management systems with secure token handling, session persistence, token refresh mechanisms, proper logout procedures, and CSRF protection across different backend frameworks.

When to Use

• Implementing user authentication systems
• Managing session state and user context
• Handling JWT token refresh cycles
• Implementing logout functionality
• Protecting against CSRF attacks
• Managing session expiration and cleanup

Quick Start

Minimal working example:

# Python/Flask Example
from flask import current_app
from datetime import datetime, timedelta
import jwt
import os

class TokenManager:
    def __init__(self, secret_key=None):
        self.secret_key = secret_key or os.getenv('JWT_SECRET')
        self.algorithm = 'HS256'
        self.access_token_expires_hours = 1
        self.refresh_token_expires_days = 7

    def generate_tokens(self, user_id, email, role='user'):
        """Generate both access and refresh tokens"""
        now = datetime.utcnow()

        # Access token
        access_payload = {
            'user_id': user_id,
            'email': email,
            'role': role,
            'type': 'access',
            'iat': now,
            'exp': now + timedelta(hours=self.access_token_expires_hours)
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide	Contents
JWT Token Generation and Validation	JWT Token Generation and Validation
Node.js/Express JWT Implementation	Node.js/Express JWT Implementation
Session Storage with Redis	Session Storage with Redis
CSRF Protection	CSRF Protection
Session Middleware Chain	Session Middleware Chain
Token Refresh Endpoint	Token Refresh Endpoint
Session Cleanup and Maintenance	Session Cleanup and Maintenance

Best Practices

✅ DO

• Use HTTPS for all session transmission
• Implement secure cookies (httpOnly, sameSite, secure flags)
• Use JWT with proper expiration times
• Implement token refresh mechanism
• Store refresh tokens securely
• Validate tokens on every request
• Use strong secret keys
• Implement session timeout
• Log authentication events
• Clear session data on logout
• Use CSRF tokens for state-changing requests

❌ DON'T

• Store sensitive data in tokens
• Use short secret keys
• Transmit tokens in URLs
• Ignore token expiration
• Reuse token secrets across environments
• Store tokens in localStorage (use httpOnly cookies)
• Implement session without HTTPS
• Forget to validate token signatures
• Expose session IDs in logs
• Use predictable session IDs