How Azure Cosmos DB enables Event Sourcing architecture and powers e-commerce
summary
Claims that event sourcing plus serverless cut cross-service latency and complexity by making events the source of truth. The demo generates inventory events with Bogus, streams them to Event Hub, routes them with Stream Analytics into Cosmos DB, then uses the Change Feed and Azure Functions to build materialized catalog views. The pipeline runs end-to-end, swaps a dozen synchronous checks for about two API calls, and aims for ~99.9% uptime and ~150 ms latency.
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