在asp.net核心中使用POST方法獲取異步http web請求的響應

Question

我正在使用asp.net核心。我能夠使用GET方法從http webrequest獲得響應。要通過http webrequest使用POST得到響應，我需要面對405錯誤（未找到遠程服務器） 這裏是我使用GET方法的代碼。

public static void Main(string[] args) 
     { 
      var task = MakeAsyncRequest("http://localhost:8080/nifi-api/flow/status", "text/html"); 

      Console.ReadLine(); 
     } 
     public static Task<string> MakeAsyncRequest(string url, string contentType) 
     { 
      HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); 
      request.ContentType = contentType; 
      request.Method = "GET"; 
      request.Proxy = null; 

      Task<WebResponse> task = Task.Factory.FromAsync(
       request.BeginGetResponse, 
       asyncResult => request.EndGetResponse(asyncResult), 
       (object)null); 

      return task.ContinueWith(t => ReadStreamFromResponse(t.Result)); 
     } 

     private static string ReadStreamFromResponse(WebResponse response) 
     { 
      using (Stream responseStream = response.GetResponseStream()) 
      using (StreamReader reader = new StreamReader(responseStream)) 
      { 
       string results = reader.ReadToEnd(); 
       if (!string.IsNullOrEmpty(results)) 
       { 
        Data data = new Data(); 
        data = JsonConvert.DeserializeObject<Data>(results); 
       } 
       return results; 
      } 
     } 

請讓我知道如何使用asp.net核心中的異步POST方法獲得響應。提前致謝。

Answer 1

也許這樣？

HttpClient httpClient = new HttpClient(); 
var response = await httpClient.PostAsync("http://localhost:8080/nifi-api/flow/status", new StringContent("Json string", Encoding.UTF8, "application/json"));