Subscribe to data changes
Your app can now listen to live database changes:
const sub = bf.realtime.subscribe(
{ table: 'orders', event: 'INSERT' },
(change) => console.log('new order:', change.new),
);Works for relational tables and NoSQL collections, with optional filtering by change type (INSERT, UPDATE, DELETE, or *). The SDK reconnects automatically; plain EventSource works too if you're not using the SDK.
Per-entity opt-in
Nothing broadcasts by default. Enable realtime per table/collection from Settings → Realtime in your project — the same explicit publication model Supabase uses. Change events carry full row data, so enabling an entity is your consent to broadcast its rows to API key holders.
What triggers events
- REST API writes (
/api/rest/v1/{table}) - SDK writes (
bf.from(...), collections, documents) - Dashboard table editor and collection edits
Raw SQL from the SQL editor doesn't broadcast in this version (events are produced at the API layer).
Docs
Full guide: basefyio.com/docs/realtime