Serverless Data Processing: Azure CosmoDB, Azure Functions, and Azure Service Bus

1. Introduction An event-driven architecture using Azure Cosmos DB, Azure Functions, and Azure Service Bus is the enterprise standard for designing highly decoupled, scalable, and resilient systems in the Microsoft Cloud. In this tutorial, you will construct a complete, asynchronous data flow from scratch using Azure's analogous features to the AWS ecosystem. The process begins when modifications occur in a Cosmos DB container, which automatically surfaces through the Cosmos DB Change Feed. This