AllowHttpStatus still throw Flurl.Http.FlurlHttpException

Question

I am using AllowHttpStatus to disable exception throwing on HTTP errors and to handle exceptions by myself. Unfortunately, I still get an exception.

Flurl.Http.FlurlHttpException. Call failed with status code 500 (Internal Server Error): POST http://MyUrl Request

The code

var request = new Url("http://MyUrl").AllowHttpStatus();

var content = new FileContent(Conversion.SourceFile.FileInfo.ToString());

var task = request.PostAsync(content, model.CancellationToken);
using (var httpStream = await task.ReceiveStream())
using (var fileStream = new FileStream(DestinationLocation + @"\result." + model.DestinationFileFormat, FileMode.CreateNew))
{
    await httpStream.CopyToAsync(fileStream);
}

//This line is never reached if HTTP Exception is thrown by PostAsync   
if (task.Result.StatusCode != HttpStatusCode.OK)
{
    if (task.Result.StatusCode != HttpStatusCode.InternalServerError)
    {
        Logger.Main.LogCritical($"Exception {task.Result.ReasonPhrase}");
    }

    throw new ApiException(ResponseMessageType.ConversionFailed);
}

Why is AllowHttpStatus not working as expected?

Answer 1

AllowHttpStatus takes parameters. Without them, it has no effect. So in this case you need to pass it HttpStatusCode.InternalServerError for example:

var request = new Url("http://MyUrl").AllowHttpStatus(HttpStatusCode.InternalServerError);

Alternatively use AllowAnyHttpStatus instead:

var request = new Url("http://MyUrl").AllowAnyHttpStatus();