Should we use CancellationToken with MVC/Web API controllers?

Question

There are different examples for async controllers. Some of them use CancellationToken in method definition:

public async Task ShowItem(i         


        

Answer 1

You should use it. Right now it only applies if you have an AsyncTimeout, but it's likely that a future MVC/WebAPI version will interpret the token as "either timeout or the client disconnected".