Serving a binary file as octet-stream

Hi,

I want to create a REST API that serves a file as octet-stream but I keep getting some error.

Here’s my code so far:

public class BookService
    {
        [ResourceMethod]
        public async ValueTask<IResponse?> RequestResponse(IRequest request, IHandler handler)
        {
            string filePath = "d:\\KUTE_ANIME_DESCRIPTION.OBJ";
            byte[] fileBytes = await File.ReadAllBytesAsync(filePath);
            var dataStream = new MemoryStream(fileBytes);


            return await request.Respond().
                Content(dataStream, (ulong)fileBytes.LongLength, checkSumProvider).Status(ResponseStatus.OK).
                Type(new FlexibleContentType(ContentType.ApplicationOctetStream)).BuildTask();
        }


        ValueTask<ulong?> checkSumProvider()
        {
            return new ValueTask<ulong?>(555);
        }
    }

Any help would be much appreciated. I don’t know if this is how you’d go about reading a file and serving it as an octet-stream.

[havokentity]

I am using Windows 10 Pro, Version 21H2, OS Build 19044.2006, Experience: Windows Feature Experience Pack 120.2212.4180.0.

.NET target framework is net6.0, language version C# 10

(I hope that’s what you mean by .NET version)

[Kaliumhexacyanoferrat]

I am still not able to reproduce this behavior. In the sense of backlog grooming I am closing here - feel free to re-open as soon there is new information.