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Supabase · Concept

Postgres changes

Supabase Realtime Postgres Changes lets an application receive database events as they happen. Subscribe by event, schema, table, and optional filters.

Last updated

Syntax

supabase.channel(name).on('postgres_changes', { event, schema, table, filter }, callback).subscribe()

In-depth API docs are only for subscribers: parameters, examples, common mistakes and interview practice.

Subscribe
  • Realtime
  • supabase_realtime publication
  • Row Level Security
  • replica identity
  • private schemas
  • custom tokens
  • setAuth

Source: Postgres Changes | Supabase Docs. Checked 2026-11-03.