Supabase Edge Functions Advanced — Streaming, WebSockets, and Background Jobs

Supabase Edge Functions run on Deno Deploy and are far more capable than simple REST handlers. This guide covers three advanced patterns every indie developer should know: streaming responses (for LLM integrations), WebSocket upgrades (for real-time features), and background jobs using EdgeRuntime.waitUntil . Pattern 1: Streaming Responses (SSE) The most common use case is streaming LLM output without blocking the client. // supabase/functions/stream-ai/index.ts import { serve } from ' https://d