http client consume rest json api

httpclientconsumejsonapi.cs

static void SerializeHttpClient(string resourceUrl)
{
    HttpClient client = new HttpClient();
    client.BaseAddress = new Uri("https://www.idx.co.id");
    client.DefaultRequestHeaders.Add(HttpRequestHeader.ContentType.ToString(), "application/json");
    var task = client.GetAsync(resourceUrl);
    task.Wait();
    var response = task.Result;

    if (response.StatusCode == HttpStatusCode.OK)
    {
        var reader = response.Content.ReadAsStringAsync();
        string result = reader.Result;
        reader.Wait();
        // parse the escaped string json response to proper JSON Object
        JToken obj = JToken.Parse(result);
        System.Console.WriteLine(obj.ToString());

        var listingdata = JsonConvert.DeserializeObject<ListingData>((string)obj);
        System.Console.WriteLine("{0}-{1}", listingdata.Activities[0].KodeEmiten, listingdata.Activities[0].NamaEmiten);
    }
    else
        System.Console.WriteLine(response.StatusCode);
}