LastLogin Authentication Demo

This is a demonstration of integrating LastLogin authentication into a Val Town HTTP handler.

• LastLogin Integration: Uses the lastlogin wrapper to handle authentication
• Google OAuth: Login with Google via the LoginWithGoogleButton component
• Protected Content: Shows personalized content for authenticated users
• Logout Functionality: Secure logout with proper cookie clearing
• Client-Side Rendering: LoginWithGoogleButton is rendered client-side for better compatibility

1. Authentication Wrapper: The main HTTP handler is wrapped with lastlogin() which handles the authentication flow
2. Email Detection: The server checks for X-LastLogin-Email header to determine if user is authenticated
3. Conditional Rendering:
   • If authenticated: Shows welcome message with user email and logout button
   • If not authenticated: Shows placeholder for login button with LastLogin attribution
4. Client-Side Login Button: The LoginWithGoogleButton is rendered client-side using React
5. Logout Route: /auth/logout clears the session cookie and redirects to home

• LastLogin Wrapper: lastlogin(handler) - Handles authentication flow
• LoginWithGoogleButton: Pre-built Google OAuth button component (client-side rendered)
• Authentication Check: Server checks X-LastLogin-Email header
• Logout Handler: Clears cookies and redirects

1. Visit the app - you'll see the login screen with a loading placeholder
2. The Google login button will appear once the client-side JavaScript loads
3. Click "Sign in with Google" to authenticate via LastLogin
4. After authentication, you'll see your personalized content
5. Click "Logout" to end your session

• Styling: TailwindCSS via Twind CDN
• Authentication: LastLogin service with Google OAuth
• Client-Side Rendering: React 18.2.0 for the login button only
• Server-Side Logic: Pure HTML generation for authenticated content

• main.tsx - Main HTTP handler with LastLogin integration
• debug.tsx - Simple debug version to test LastLogin wrapper
• README.md - This documentation