Flutter Web + Supabase Realtime: From Channel Subscriptions to Optimistic Updates

Flutter Web + Supabase Realtime: From Channel Subscriptions to Optimistic Updates Supabase Realtime is easy to start with and easy to get wrong in production. Here are the patterns that worked in my Flutter Web project, covering channel management, optimistic updates, and the gotchas that burned me. Basic: Channel Subscription // lib/services/realtime_service.dart class RealtimeService { final _supabase = Supabase . instance . client ; RealtimeChannel ? _channel ; void subscribeMemos ( String us