How PostgREST Powers Billions of API Requests in Supabase

Discover the brilliant technology behind PostgREST and how it powers the Supabase Data API at massive scale. In this video, we explore how PostgREST turns your PostgreSQL database into a fast, secure, and powerful RESTful API, and how Supabase uses it to process billions of requests efficiently.

If you’ve ever wondered how Supabase delivers instant APIs directly from your database, this video breaks down the architecture, the elegance of PostgREST, and why it has become such a powerful foundation for modern backend development.

⚡ Supabase - https://supabase.com/
🌐 Data REST API - https://supabase.com/docs/guides/api

Timecodes:
0:00 Intro
0:54 The Supabase Data API
1:02 Create a table, get a REST endpoint
1:27 The schema is the specification
1:53 What is PostgREST?
2:16 The schema snapshot at startup
2:42 A single request end to end
2:59 The in-memory schema cache
3:09 Refreshing the cache on schema changes
3:29 Resolving the Postgres role
3:36 JWT verification and role claims
3:48 How PostgREST uses database roles
4:01 Publishable and secret keys
4:16 The authenticator role
4:48 PostgREST connection pooling
5:06 SET ROLE and user impersonation
5:46 Translating HTTP into SQL
6:06 The JSON serialization
6:24 Live demo
7:37 Grants vs RLS — two security layers
8:25 Exposing schemas
8:42 The API gateway
8:54 Supabase client libraries

Thank you for watching

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