使用httpclient将curl命令转换为c#代码

using System;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        // curl命令
        string curlCommand = "curl -X POST -H 'Content-Type: application/json' -d '{\"name\": \"John\", \"age\": 30}' https://api.example.com/endpoint";

        // 提取请求方法、URL、请求头和请求体
        string method = curlCommand.Substring(curlCommand.IndexOf("curl") + 5, curlCommand.IndexOf("-") - 6).Trim();
        string url = curlCommand.Substring(curlCommand.LastIndexOf(" ") + 1);
        string headers = curlCommand.Substring(curlCommand.IndexOf("-H") + 3, curlCommand.IndexOf("-d") - curlCommand.IndexOf("-H") - 4).Trim();
        string data = curlCommand.Substring(curlCommand.IndexOf("-d") + 3).Trim();

        // 创建HttpClient实例
        using (HttpClient httpClient = new HttpClient())
        {
            // 设置请求方法和URL
            HttpRequestMessage httpRequest = new HttpRequestMessage(new HttpMethod(method), url);

            // 设置请求头
            string[] headerLines = headers.Split("\n");
            foreach (string headerLine in headerLines)
            {
                string[] headerParts = headerLine.Split(":");
                string headerName = headerParts[0].Trim();
                string headerValue = headerParts[1].Trim();
                httpRequest.Headers.Add(headerName, headerValue);
            }

            // 设置请求体
            if (!string.IsNullOrWhiteSpace(data))
            {
                httpRequest.Content = new StringContent(data);
            }

            // 发送HTTP请求，并获取响应
            HttpResponseMessage httpResponse = await httpClient.SendAsync(httpRequest);

            // 处理响应
            string responseBody = await httpResponse.Content.ReadAsStringAsync();
            Console.WriteLine($"Response Code: {httpResponse.StatusCode}");
            Console.WriteLine($"Response Body: {responseBody}");
        }
    }
}