Fullstack Authentication Snippets
Production-ready authentication patterns for modern web applications
Available Snippets
Subdomain Cookie Authentication
Share authentication across multiple subdomains (e.g., app.domain.com, auth.domain.com).
Next.js + Supabase
Cross-subdomain authentication with secure cookies
Best for: SaaS apps with multiple subdomains, multi-tenant architectures
Edge Authentication API
Global authentication API with sub-50ms latency using Cloudflare Workers.
Hono Server (Cloudflare Workers)
Authentication API with Better Auth
Next.js Client
Connect your Next.js app to the auth API
Best for: Global applications, API-first architectures, mobile app backends
Organization Management
Coming Soon
Multi-organization support with teams and permissions
Quick Start
Install any snippet with:
npx shadcn@latest add [snippet-url]Choosing a Snippet
| Need | Use |
|---|---|
| Multiple subdomains | Subdomain Cookies |
| Global low-latency | Cloudflare Workers |
| Quick setup | Subdomain Cookies |
| API for multiple apps | Cloudflare Workers |
| Next.js only | Either works |
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Last updated: 6/2/2025