stripe-supabase-webhooks

Syncing Stripe webhook subscription events to Supabase in Next.js requires a route handler at app/api/stripe-webhook/route.ts that verifies signatures and applies cascading upsert logic to update subscriber data across lifecycle changes.

A cascading upsert strategy for Stripe webhooks reliably syncs subscriber data to Supabase by updating existing records or inserting new ones, correctly handling both signed-up and pre-signup users during event processing.

Verifying Stripe webhook signatures is required when using Supabase to ensure secure event handling and prevent unauthorized requests from updating your subscriber database state.

You can send transactional emails based on Stripe subscription events in Next.js by triggering email notifications during the event-driven flow for occurrences like welcome messages, payment failures, and cancellations.

Testing Stripe webhooks locally with Next.js and Supabase involves setting up the route at app/api/stripe-webhook/route.ts and using Stripe CLI to forward and verify events in your local environment.

Stripe and Supabase webhook integration requires environment variables configured for both services to authenticate requests and securely connect the Next.js route handler to your database and payment provider.