Cloud Architecture

Event-Driven Processing with Cosmos DB Change Feed

Cloud Architecture diagram · made in Skemio

Architecture diagram showing client app writing to Cosmos DB, change feed triggering Azure Function via Lease Container, sending alerts via Service Bus to downstream consumer.

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What it shows

Cosmos DB Change Feed listens natively to document writes without polling
Azure Functions scales horizontally matching partition key throughput
A dedicated lease container tracks state to guarantee at-least-once delivery

The takeaway

Change Feed turns your database into an event stream, decoupling writes from async workloads.

#Azure
#Serverless
#CosmosDB
#CloudArchitecture
#SystemDesign
#SoftwareEngineering

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