SignalR allows server code to send asynchronous notifications to client-side web applications. By using it, Azure Functions can send real-time messages to your web applications. Prices can get change whenever data changes in database. Notices can be sent if user needs to be notified. Numbers in dashboard can change dynamically when data changes in Cosmos DB. You can do all those with Azure Cosmos DB + Azure Functions and SignalR. This combination works like David Copperfield magic.
There’s a bit of work involved but Hasan shows us how to get it done.