public async Task <string> DoPost(string url, string authHeader, string body)
{
string responseBody = null;
Uri requestUri = new Uri(url);
HttpWebRequest req = HttpWebRequest.Create(requestUri) as HttpWebRequest;
req.Method = HTTP_POST;
req.Headers["Authorization"] = authHeader;
req.ContentType = "application/json";
byte[] byteArray = Encoding.UTF8.GetBytes(body);
req.ContentLength = byteArray.Length;
Exception exc = null;
try
{
// Get the request stream.
using (Stream dataStream = await req.GetRequestStreamAsync())
{
// Write the data to the request stream.
await dataStream.WriteAsync(byteArray, 0, byteArray.Length);
dataStream.Close();
}
}
catch (Exception ex)
{
exc = ex;
string msg = ex.Message;
if (ex is WebException)
{
WebException wex = ex as WebException;
if (wex.Response != null)
{
msg += Environment.NewLine + Environment.NewLine + GetResponseBody(wex);
}
}
DisplayMessage.Error(_parent, msg);
}
if (exc == null)
{
try
{
// WEB RESPONSE
Task <WebResponse> task = req.GetResponseAsync();
//using (HttpWebResponse res = req.GetResponse() as HttpWebResponse)
using (HttpWebResponse res = await task as HttpWebResponse)
{
HttpStatusCode statusCode = res.StatusCode;
string statusDescription = res.StatusDescription;
string characterSet = res.CharacterSet;
string contentEncoding = res.ContentEncoding;
long contentLength = res.ContentLength;
string contentType = res.ContentType;
DateTime lastModified = res.LastModified;
string cerverResponse = null;
using (Stream dataStream = res.GetResponseStream())
{
// Reading the server response.
cerverResponse = await ReadToEndAsync(characterSet, dataStream);
dataStream.Close();
}
StringBuilder sb = new StringBuilder();
sb.AppendLine($"POST {url}");
sb.AppendLine($"HTTP status: {(int)statusCode} {statusCode}");
sb.Append(Environment.NewLine);
foreach (string key in req.Headers.Keys)
{
sb.AppendLine($"{key}: {req.Headers[key]}");
}
sb.Append(Environment.NewLine);
sb.AppendLine($"Response: {cerverResponse}");
responseBody = sb.ToString();
res.Close();
}
}
catch (Exception ex)
{
string msg = ex.Message;
if (ex is WebException)
{
WebException wex = ex as WebException;
if (wex.Response != null)
{
msg += Environment.NewLine + Environment.NewLine + GetResponseBody(wex);
}
}
DisplayMessage.Error(_parent, msg);
}
}
return(responseBody);
}