I need API which stream live data to UI (UI might be react or angular application). Once I call the server, it should keep on giving live data in JSON format. For example application like Blotter screen in Trading application.
Which technology will be more suitable to create this type of API?
Have a look at WebSockets and ASP.NET Core SignalR
https://learn.microsoft.com/en-us/aspnet/core/fundamentals/websockets?view=aspnetcore-3.1