Cosmos DB Change Feed

Azure Cosmos DB Change Feed is a feature that allows applications to track and respond to real-time data changes within a database. Whenever data is added, updated, or deleted, the Change Feed captures those modifications sequentially, enabling other services or processes to react promptly. Think of it as a live "news feed" for your database, helping you automate workflows, synchronize data across systems, or trigger alerts without polling the entire database repeatedly. This mechanism ensures efficient, scalable, and near-instantaneous data integration and processing in distributed applications.