Supabase Edge Functions Advanced — Deno, Webhooks, Scheduled Jobs, and Multi-tenant Patterns Supabase Edge Functions run on Deno Deploy — a lightweight serverless runtime that's not Node.js. This article goes beyond basic CRUD to cover webhook signature verification, scheduled jobs via pg_cron , and secure multi-tenant data isolation. Understanding the Deno Environment The biggest gotcha for developers coming from Node.js is that Edge Functions use Deno , not Node. Key differences: No require() — use ES module import syntax only. Node built-ins like fs and crypto are available with the node: prefix (partially). npm packages are importable directly with the npm: prefix (Deno 1.34+). No persistent filesystem writes — use /tmp for ephemeral data only.…