无法在.NetCore RestApi中发出post请求

using System;
using System.Net.Http;
using System.Text;
using Newtonsoft.Json;

class Program
{
    static async System.Threading.Tasks.Task Main(string[] args)
    {
        string url = "https://your-api-endpoint.com/api/resource";
        string json = JsonConvert.SerializeObject(new { Name = "John", Age = 30 });

        using (HttpClient client = new HttpClient())
        {
            var content = new StringContent(json, Encoding.UTF8, "application/json");
            HttpResponseMessage response = await client.PostAsync(url, content);

            if (response.IsSuccessStatusCode)
            {
                string responseBody = await response.Content.ReadAsStringAsync();
                Console.WriteLine(responseBody);
            }
            else
            {
                Console.WriteLine($"Error: {response.StatusCode}");
            }
        }
    }
}

using Microsoft.AspNetCore.Mvc;
using System;

[ApiController]
[Route("[controller]")]
public class ResourceController : ControllerBase
{
    [HttpPost]
    public IActionResult Post([FromBody] string value)
    {
        return Ok($"Received data: {value}");
    }
}

curl -X POST https://your-api-endpoint.com/api/resource -H "Content-Type: application/json" -d '{"Name":"John", "Age":30}'