Going real time using Azure CosmosDB and React
summary
Builds a real‑time stock monitoring SPA with React, Azure Functions, Azure Cosmos DB and SignalR that processes high‑volume movement events via Cosmos DB Change Feed and publishes updates over a SignalR negotiate endpoint. Uses Cosmos DB trigger bindings for push processing, occasional Cosmos SDK point reads/updates for validation, random movement generators to simulate load, and MobX for client state. Demo shows new movement documents trigger recalculated stock per location and immediate client notifications, reducing custom code and deployment friction.
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chapters (10)
- 0:00Introduction
- 1:26Warehouse basics
- 3:14Architecture overview
- 7:49Why Cosmos DB for real-time
- 16:09Azure Functions and Cosmos DB
- 21:50Real-time updates with SignalR
- 25:22Client-side with MobX State Tree
- 26:27Live demo
- 28:56Setup and integration
- 30:40Summary
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