Connect to Azure Text Analytics from Console App without await - console-application

Question

I am trying to call an Azure API (Text Analytics API) from a C# console application with a HttpRequest and I do not want to use any DLLs or await
but using the below snippet I am receiving "Bad Request". Can someone help me where it is going wrong.
public static void ProcessText()
{
string apiKey = "KEY FROM AZURE";
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
// Request headers
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", apiKey);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var requestUri = "https://eastus.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment?" + queryString;
//HttpResponseMessage response;
// Request body
byte[] byteData = Encoding.UTF8.GetBytes("I really love Azure. It is the best cloud platform");
using (var content = new ByteArrayContent(byteData))
{
//content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
var response = client.PostAsync(requestUri, content).Result;
Console.WriteLine(response);
Console.ReadLine();
}
}

Answer 1

string apiKey = "<<Key from Azure>>";
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
// Request headers
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", apiKey);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var requestUri = "https://**eastus**.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment?" + queryString;
//HttpResponseMessage response;
var body = new
{
documents = new[]
{
new
{
ID="1", text="I really love Azure. It is the best cloud platform"
}
}
};
string json = JsonConvert.SerializeObject(body);
byte[] byteData = Encoding.UTF8.GetBytes(json);
dynamic item = null;
using (var con = new ByteArrayContent(byteData))
{
//content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
var response = client.PostAsync(requestUri, con).Result;
if (response.StatusCode == HttpStatusCode.OK)
{
string res = string.Empty;
using (HttpContent content = response.Content)
{
Task<string> result = content.ReadAsStringAsync();
res = result.Result;
}
JavaScriptSerializer serializer = new JavaScriptSerializer();
item = serializer.Deserialize<object>(res);
}
}
Hi All, I could able to get the API output using the above approach