supabase-expert

Row Level Security policies in Supabase restrict user access to permitted rows, ensuring RLS is enabled on all tables. This approach generates secure policies to prevent unauthorized data access and consistency mistakes in production full-stack applications.

Generating TypeScript types from a Supabase schema uses the gen types workflow to achieve type-safe database integration. This process produces types directly from your schema, ensuring type-safe database integration and preventing runtime type errors in full-stack applications.

Use Supabase Edge Functions for sensitive server-side operations to ensure service-role keys never expose to clients. Design Deno-based functions for server-side workflows and secure Supabase Auth session handling to protect sensitive operations and service-role keys from client exposure.

Migrating a Firebase app to Supabase involves creating schemas, RLS policies, migrations, and Edge Functions for sensitive operations. This process maps Firebase authentication flows to Supabase Auth while setting up secure schemas, RLS, and migrations for the new backend.

Supabase Realtime supports presence and subscription cleanup best practices. You can configure realtime subscriptions with presence tracking and cleanup best practices to maintain active user states and prevent memory leaks across active realtime subscriptions.

Configuring Supabase Storage signed URLs requires setting up bucket policies and generating time-limited URLs. This approach configures bucket policies and signed URLs to securely manage file access without exposing sensitive storage objects directly to the client.