Test for creating an Infusionsoft Resthook

Temp.cs

using System;
using System.Diagnostics;
using System.IO;
using System.Net;
using System.Text;
using Newtonsoft.Json;
using ServiceStack;
using Xunit;

namespace Tests
{
  public class InfusionsoftHookRequest
  {
    [JsonProperty("eventKey")]
    public string EventKey { get; set; }
    [JsonProperty("hookUrl")]
    public string HookUrl { get; set; }
  }

  public class Temp
  {
    private string _accessToken = "abc";
    private string _infusionsoftUrl = "https://api.infusionsoft.com/crm/rest/v1/hooks";
    private string _callbackUrl = "http://www.mypage.com/api/infusionsoft/hookcallback";

    [Fact]
    public void CreateWebhookTest()
    {
      var hookObj = new InfusionsoftHookRequest
      {
        EventKey = "contact.edit",
        HookUrl = _callbackUrl
        //HookUrl = HttpUtility.UrlEncode(_callbackUrl) //I tried both ways
      };

      var data = JsonConvert.SerializeObject(hookObj);
      var request = (HttpWebRequest)WebRequest.Create(_infusionsoftUrl);
      request.Method = "POST";
      request.KeepAlive = true;
      request.ContentType = "application/x-www-form-urlencoded";
      //request.ContentType = "application/json, */*"; //I tried both ways
      request.Accept = "application/json, */*";

      var dataBytes = Encoding.UTF8.GetBytes(data);
      using (var reqStream = request.GetRequestStream())
      {
        reqStream.Write(dataBytes, 0, dataBytes.Length);
      }
        request.Headers[HttpRequestHeader.Authorization] = $"Bearer {_accessToken}";
      string resultJson;
      try
      {
        using (var response = request.GetResponse())
        {
          var sr = new StreamReader(response.GetResponseStream());
          resultJson = response.ReadToEnd();
          sr.Close();
        }
      }
      catch (Exception e)
      {
        Debug.WriteLine($"Error creating webhook: {e.Message}");
        return;
      }
      Debug.WriteLine($"CreateWebhook result: {resultJson}");
    }
  }
}