MVC 4 Web Api Post

我想从远程客户端插入，因为我需要通过http发送数据。
我可以正确使用getPerformances()和httpClient api/performances?date={0}

我想问我的PerformancesController内部的postPorformances()实现是否正确，如果它是如何从客户端调用它?

这是我的实现:

public class PerformancesController : ApiController
    {
        // GET api/performances
        public IEnumerable<Performance> getPerformances(DateTime date)
        {
            return DataProvider.Instance.getPerformances(date);
        }
        public HttpResponseMessage postPerformances(Performance p)
        {
            DataProvider.Instance.insertPerformance(p);
            var response = Request.CreateResponse<Performance>(HttpStatusCode.Created, p);
            return response;
        }
    }

public class Performance {
    public int Id {get;set;}
    public DateTime Date {get;set;}
    public decimal Value {get;set;}
}

我试过这个，但我不确定:

  private readonly HttpClient _client;
  string request = String.Format("api/performances");
  var jsonString = "{'"Date'":" + p.Date + ",'"Value'":" + p.Value + "}";
  var httpContent = new StringContent(jsonString, Encoding.UTF8, "application/json");
  var message = await _client.PutAsync(request, httpContent);

using (var client = new HttpClient())
{
    client.BaseAddress = new Uri("http://example.com");
    var result = client.PostAsync("/api/performances", new
    {
        id = 1,
        date = DateTime.Now,
        value = 1.5
    }, new JsonMediaTypeFormatter()).Result;
    if (result.IsSuccessStatusCode)
    {
        Console.writeLine("Performance instance successfully sent to the API");
    }
    else
    {
        string content = result.Content.ReadAsStringAsync().Result;
        Console.WriteLine("oops, an error occurred, here's the raw response: {0}", content);
    }
}