How to initiate sending commands from the server in C#.NET?

Question

ASP.NET

There is a desktop application in C # .NET, it periodically accesses the server and collects data. The server side is written in ASP.NET Core.
Are there ready-made libraries that allow you to get rid of polling and receive data from the server asynchronously, as they appear on the server?

Answer 1

No pooling or libraries needed, just regular server side events .

Answer 2

Dig towards SignalR

Answer 3

Regular Long Poll.
And you don't need any libraries.