Question

我一直在努力，因为WebApi端点通过分块传输获得了响应。我正在使用协定库从麦克风获取帧（捕获的语音，字节数组），这些数组是我通过ASP.NET核心中实现的RestApi发布到服务器的。这些数据进一步通过TCP客户端发送到扬声器，当流传输失败时（扬声器无法访问，其他人正在讲话...），扬声器将返回异常。我需要实现一键通的行为，所以有必要使用分块传输。

客户至上

var playUri = "http://localhost:9100/speakers/play"; 
var request = WebRequest.Create(playUri);
var authorizationHeader = Encoding.ASCII.GetBytes(string.Format("{0}:{1}", "admin", "12345"));
request.Headers.Add("Authorization", $"Basic {Convert.ToBase64String(authorizationHeader)}");
request.Method = "POST";
request.ContentType = "audio/basic";

var webRequest = request as HttpWebRequest;
webRequest.SendChunked = true;

var stream = await webRequest.GetRequestStreamAsync();
var rnd = new Random();

//Generating random byte arrays (simulating frames from microphone)
var rnd = new Random();
for (int i = 0; i < 2000; i++)
{
    await Task.Delay(TimeSpan.FromMilliseconds(100));
    var b = new Byte[1000];
    rnd.NextBytes(b);

    stream.Write(b, 0, b.Length);
}

stream.Close();
stream.Dispose();

服务器端模拟

[HttpPost("play")]
public async Task<IActionResult> Play( [FromHeader(Name = "Content-Type")] string contentType)
{    
    var client = new MyTcpClient(login,password);

    (bool success, string response, int? statusCode) result = (false, string.Empty, null);
    try
    {
        result = await client.PlayAudio(address, Request.Body);
    }
    catch (SocketException ex)
    {                
        result.success = false;

        if (ex.SocketErrorCode == SocketError.TimedOut)
        {
            result.statusCode = (int)HttpStatusCode.GatewayTimeout;
        }
        else
        {
            result.statusCode = (int)HttpStatusCode.InternalServerError;
        }
    }
    catch (Exception ex)
    {
        result.success = false;
        result.statusCode = (int)HttpStatusCode.InternalServerError;
    }

    if (result.success || (string.IsNullOrEmpty(result.response) && result.statusCode == null))
    {
        return Ok();
    }
    else
    {
        return StatusCode(result.statusCode.HasValue ? result.statusCode.Value : (int)HttpStatusCode.InternalServerError, result.response);
    }    
}

如果扬声器可以访问，并且在通过TcpClient向扬声器流式传输过程中没有异常，则一切正常。但是我不知道如何在写流之前完成从请求中获取响应，以便能够通知用户服务器端的问题。有可能吗？

获取分块请求的响应

0 个答案: