public async Task DetectStreaming() { if (NoAccountSettings()) { return; } var cancellation = new CancellationTokenSource(); var options = new PipelineOptions(); options.Transport = new SocketClientTransport(); var service = new FaceClient(s_account, s_key, options); Response <Stream> response = await service.DetectLazyAsync(cancellation.Token, new Uri(@"https://upload.wikimedia.org/wikipedia/commons/5/50/Albert_Einstein_%28Nobel%29.png")); Assert.IsTrue(response.TryGetHeader(Encoding.ASCII.GetBytes("Content-Length"), out long contentLength)); Assert.IsTrue(response.TryGetHeader("Content-Type", out string type)); Assert.AreEqual("application/json; charset=utf-8", type); var content = ReadOnlySequence <byte> .Empty; while (content.Length != contentLength) { var buffer = new byte[contentLength]; var read = await response.Result.ReadAsync(buffer, cancellation.Token); content = new ReadOnlySequence <byte>(buffer, 0, read); } if (content.IsSingleSegment) { var array = content.First.Span.ToArray(); var stream = new StreamReader(new MemoryStream(array)); JsonSerializer serializer = new JsonSerializer(); var json = (DetectResult[])serializer.Deserialize(stream, typeof(DetectResult[])); DetectResult result = json[0]; Assert.AreEqual("male", result.FaceAttributes.Gender); Assert.Greater(100, result.FaceAttributes.Age); Assert.Less(10, result.FaceAttributes.Age); } response.Dispose(); }