This tutorial covers a method how to get real time updates from Notion Databases.
The official Notion API does not offer this functionality (webhooks) and even worse, the “Last edited time” property, which is the most efficient marker to detect changes when going for polling, updates only every minute.
A way to solve this problem is to capture snapshots of the recently updated Notion pages within the one minute time frame and compare the differences.
After that, the data can be prepared for a user friendly consumable webhook.