如何处理 httpClient 响应正确？

Question

Because of Net 6.0 usage I'm frustrated how to convert old HttpWebResponse to httpClient

Could someone help me to handle it right?

I have httpClient request

    var handler = new HttpClientHandler();
    if (handler.SupportsAutomaticDecompression)
    {
        handler.AutomaticDecompression = DecompressionMethods.GZip | 
            DecompressionMethods.Deflate;
    }
    var httpClient = new HttpClient(handler);
    httpClient.SendAsync(new HttpRequestMessage(new HttpMethod.Post, url));

And I have old HttpWebResponse

    using (var dataStream = httpWebRequest.GetRequestStream())
    {
        var reqDataByte = Encoding.GetEncoding(encoding).GetBytes(reqData);
        dataStream.Write(reqDataByte, 0, reqDataByte.Length);
    }

    using (var httpWebResponse = (HttpWebResponse) httpWebRequest.GetResponse())
    {
        var responseStream = httpWebResponse.GetResponseStream();

        if (responseStream != null)
            using (var streamReader =
                new StreamReader(responseStream, Encoding.GetEncoding(encoding)))
            {
                 getString = streamReader.ReadToEnd();
            }
    }

Couldn't understand how to handle respond with httpClient right

    using var dataStream = httpClient.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
    var reqDataByte = Encoding.GetEncoding(encoding).GetBytes(reqData);
    dataStream.CopyToAsync(reqDataByte, 0, reqDataByte.Length);

    using var response = (HttpWebResponse) httpClient.GetResponse();
    var responseStream = response.GetResponseStream();

    using var streamReader =
        new StreamReader(responseStream, Encoding.GetEncoding(encoding));
    getString = streamReader.ReadToEnd();

Answer 1

If you are trying to simply post raw bytes and get a string response back it is quite simple. You will need this to be an async method and await the async calls.

var reqDataByte = Encoding.GetEncoding(encoding).GetBytes(reqData);
var response = await httpClient.PostAsync(url, new ByteArrayContent(reqDataByte));
if (response.IsSuccessStatusCode)
{
    getString = await response.Content.ReadAsStringAsync();
}
else
{
    //Handle any unsuccessful post
}