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Supabase authentication in Next.js requires server-side session handling via proxy.ts and SSR patterns, plus client actions for login, signup, and password reset. This setup applies to both server-rendered and client components to manage the complete auth flow.

Google OAuth with Supabase in Next.js uses an OAuth callback routing flow to handle authentication tokens securely. It enables automatic profile creation with RLS-based access control, ensuring user data is protected across server-rendered and client components.

Yes, you can use RLS-based profiles with Next.js SSR and Supabase by retrieving user sessions on the server side. This approach satisfies requirements for SSR user retrieval and ensures row-level security policies are enforced during profile management.

The best way to set up B2B authentication with Supabase and Next.js is to deploy a production-ready system covering onboarding, login, password reset, and profile management. This includes configuring server proxy handling and OAuth callback routing for a seamless user experience.

Yes, you need a proxy file like proxy.ts to handle Supabase SSR user retrieval in Next.js. Server-side session handling via proxy patterns is required to satisfy SSR user retrieval and maintain secure authentication across server-rendered components.