C# 使用Flurl http请求处理流式响应

AI对话接口采用流式返回，使用Flurl处理返回的数据流

using Flurl;
using Flurl.Http;

[HttpPost]
public async Task<string> GetLiushiChatLaw()
{
    //1、请求参数，根据实际情况
    YourModel request = new YourModel();string allStr = "";
　　 string chatLawApiUrl = "http://请求地址";

    //2、请求。接收类型流Stream,处理请求响应
    using (var stream = await chatLawApiUrl.WithHeader("Content-Type", "application/json")
          .SetQueryParams(new { access_token = "token" })
          .PostJsonAsync(request)
          .ReceiveStream())
    {
        // 逐块读取并处理响应内容
        var buffer = new byte[102];
        int bytesRead;

        while ((bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length)) > 0)
        {
            // 3、结果转换为字符串
            string content = System.Text.Encoding.UTF8.GetString(buffer, 0, bytesRead);
            allStr += content;
            _logger.LogInformation(content);
        }
    }

     return allStr;
}