Timeout a Web Api request?

Question

Like MVC WebApi runs on the asynchronous ASP.NET pipeline, meaning execution timeout is unsupported.

In MVC I use the [AsyncTimeout] filter, WebApi does

Answer 1

For each endpoint where you want a timeout, pipe a CancellationToken through, e.g.:

[HttpGet]
public Task GetAsync()
{
    var tokenSource = new CancellationTokenSource(_timeoutInSec * 1000);
    return GetResponseAsync(tokenSource.Token);
}