I want to use webclient instead of httpclient.

static void Main(string[] args)
      {
          AsyncCallbackUrlPost("f0c9b87f41fd0b7824ffdadeccefefefdd3c39929dbceca61b3450d497981a5eeeec354713d61263a71e3a953beebf62b12d6d9819ebb0593e7947766e8bef03", "http://localhost:54262/api/Payload");

          Console.ReadLine();
      }

public static async Task AsyncCallbackUrlPost(string loanBeamMessageHash, string callbackURL)
        {
            HttpResponseMessage httpResponseMessage = null;
            try
            {
                Uri objUri = new Uri(callbackURL);
                //Create an Http client and set the headers we want 
                HttpClient httpClient = new HttpClient();
                httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                //Add it to Response Header and call it "LoanBeam_MessageHash"
                httpClient.DefaultRequestHeaders.Add("LoanBeam_MessageHash", loanBeamMessageHash);
                httpClient.DefaultRequestHeaders.Host = objUri.Host;
                StringContent theContent = new StringContent(loanBeamMessageHash, System.Text.Encoding.UTF8, "application/json");
                //Post the data 
                httpResponseMessage = await httpClient.PostAsync(objUri, theContent);
                //handle status code 200
                if (httpResponseMessage.StatusCode == System.Net.HttpStatusCode.OK)
                {

                    Console.WriteLine("HTTP status success: " + httpResponseMessage.ReasonPhrase);
                    return;
                }
                else
                {
                    return;
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("HTTP status error: " + httpResponseMessage.ReasonPhrase);
            }

        }

My above code is working fine, i just wanted to do it using webclient without async.