Adding Auth to Your App with Supabase

Authentication is one of those features every app needs but nobody wants to build from scratch. Supabase makes it remarkably simple.

Why Supabase for Auth?

Supabase provides a complete auth solution out of the box:

• Email/password authentication
• Social logins (Google, GitHub, etc.)
• Magic link authentication
• Row Level Security integration
• Session management

Setting Up

First, install the Supabase client libraries:

npm install @supabase/supabase-js @supabase/ssr

Environment Variables

Add your Supabase credentials to your .env file:

PUBLIC_SUPABASE_URL=your-project-url
PUBLIC_SUPABASE_ANON_KEY=your-anon-key

Protected Routes

To protect routes, check the session in your load functions and redirect if not authenticated. Supabase's Row Level Security adds an extra layer of protection at the database level.

Next Steps

Once basic auth is working, consider adding:

• Email verification
• Password reset flow
• Role-based access control
• Two-factor authentication