Security Guide

Learn about the security features and best practices implemented in your SuperFast application.

About Security

SuperFast implements industry-standard security practices to protect your application and user data. This guide covers authentication, authorization, and other security features.

Authentication & Authorization

SuperFast uses NextAuth.js for secure authentication and authorization:

Email Authentication: Secure magic link authentication using Resend
Google OAuth: Social authentication with Google
Session Management: Secure session handling with MongoDB adapter
Protected Routes: Route protection with authentication checks

1. Image Security

Configure secure image domains in your Next.js configuration:

TypeScript

/** @type {import('next').NextConfig} */ const nextConfig = {   images: {     remotePatterns: [       {         protocol: 'https',         hostname: 'images.unsplash.com',         pathname: '**',       },       {         protocol: 'https',         hostname: 'avatars.githubusercontent.com',         pathname: '**',       },     ],   }, };  export default nextConfig;

2. Email Security with Resend

Resend provides secure email delivery with the following limits:

Free Tier: 100 emails/day
Pro Tier: 3,000 emails/day
Enterprise: Custom limits
Rate Limiting: Automatic rate limiting to prevent abuse

3. AI Integration Security

The GPT integration in lib/gpt.ts provides secure AI capabilities:

API Key Security: Secure storage of OpenAI API keys
Rate Limiting: Built-in rate limiting for API calls
Error Handling: Comprehensive error handling and logging
Input Validation: Strict input validation for AI prompts

4. Environment Variables

Secure your sensitive configuration with environment variables:

Important

Never commit sensitive environment variables to version control. Add them to your deployment platform instead:

.env

# AuthenticationNEXTAUTH_URL=http://localhost:3000NEXTAUTH_SECRET=your-random-string# Email (Resend)RESEND_API_KEY=re_123...FROM_EMAIL=noreply@yourdomain.com# Google OAuthAUTH_GOOGLE_ID=your-client-idAUTH_GOOGLE_SECRET=your-client-secret# DatabaseMONGO_URI=your-mongodb-uri

Security Best Practices

Follow these security best practices to keep your application secure:

Keep all dependencies updated to their latest versions
Use HTTPS in production
Implement rate limiting for API routes
Regularly audit your dependencies for vulnerabilities
Use secure session management
Implement proper error handling
Use environment variables for sensitive data
Enable security headers