async Task AppendBody(HttpRequestMessage requestMessage, Stream body, CancellationToken cancellationToken)
{
if (!body.CanSeek)
{
// we need to compute the ContentHash for this body meaning that we need to have seekable version, hence copy to a memory stream first
var memoryStream = new MemoryStream();
await body.CopyToAsync(memoryStream, 81920, cancellationToken);
memoryStream.Position = 0;
body = memoryStream;
}
var bodyStartPosition = body.Position;
var contentHashBytes = await ContentHashHelper.ComputeMD5HashBytes(body, cancellationToken);
body.Position = bodyStartPosition;
requestMessage.Content = new StreamContent(body);
requestMessage.Content.Headers.ContentMD5 = contentHashBytes;
}
