Real-Time Notion Database Updates via Webhooks & Supabase

This workflow solves Notion's absence of webhooks by implementing efficient polling every 5 seconds, filtered by 'Last edited time' for performance. It caches database page states in Supabase, compares retrieved pages against cached versions, and only pushes new or changed data to a custom webhook URL. This reduces latency from minutes to seconds while minimizing unnecessary data processing.

Benefits include real-time synchronization for team collaboration, inventory tracking, or any Notion Database-dependent apps, without constant full scans. It's ideal for e-commerce shipping & fulfillment, where timely updates on orders or stock are critical, or productivity workflows needing instant notifications.

Setup involves creating a Supabase project with the provided schema, adding a 'Last edited time' property to your Notion Database, configuring globals for settings_id and DB URL, setting your webhook, and scheduling the trigger. Pair with a Redis workflow to prevent overlaps. Detailed instructions are embedded, with a demo video showcasing live changes.