Distinguish timeout from user cancellation

Question

HttpClient has a builtin timeout feature (despite being all asynchronous, i.e. timeouts could be considered orthogonal to the http request functionality and thu

Answer 1

The accepted answer is certainly how this should work in theory, but unfortunately in practice IsCancellationRequested does not (reliably) get set on the token that is attached to the exception:

Cancelling an HttpClient Request - Why is TaskCanceledException.CancellationToken.IsCancellationRequested false?

Answer 2

Yes, they both return the same exception (possibly because of timeout internally using a token too) but it can be easily figured out by doing this:

   catch (OperationCanceledException ex)
            {
                if (token.IsCancellationRequested)
                {
                    return -1;
                }

                return -2;
            }

so basically if you hit the exception but your token is not cancelled, well it was a regular http timeout