supabase-patterns

Environment-aware Supabase client initialization separates browser, SSR, and server contexts to prevent accidental service key exposure. Apply distinct client setups for browser, middleware, and admin operations to maintain secure key boundaries across full-stack applications.

Supabase RLS policies enforce per-user and role-based access by utilizing JWT claims within your database rules. Concrete policy examples map authenticated session data directly to row-level permissions, securing tables like profiles and posts from unauthorized reads or writes.

Supabase migrations manage safe production schema changes through structured migration files and developer workflows for generating diffs. Following specific rules for schema modifications ensures reliable tracking and application of database changes without brittle deployments.

Supabase storage policies enforce safe bucket access while signed URLs securely handle user uploads like avatars. Configuring explicit upload policies restricts unauthorized file access and ensures media is only accessible by designated users.

Supabase Edge Functions process webhooks in Next.js applications using a specific layout and deploy workflow. This integration pattern handles webhook payloads efficiently at the edge, bypassing the need for dedicated server infrastructure.

Supabase realtime subscriptions manage live data feeds through channel-based listening and presence patterns. Subscribing to database changes via channels provides instant UI updates and tracks active user presence across connected clients.