com.vzaar.api.Vzaar.uploadThumbnail C# (CSharp) Method

		public string uploadThumbnail(Int64 videoId, string path)
		{
			var url = apiUrl + "/api/videos/" + videoId + "/upload_thumb.json";
			var result = String.Empty;
			var request = (HttpWebRequest)WebRequest.Create(url);
			request.Method = "POST";

			var consumer = new OAuth.OAuthConsumer();
			consumer.SetTokenWithSecret(username, token);
			request = consumer.Sign(request);

			var boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x", NumberFormatInfo.InvariantInfo);
			request.ContentType = "multipart/form-data; boundary=" + boundary;
			boundary = "--" + boundary;

			var rs = request.GetRequestStream();

			var buff = Encoding.ASCII.GetBytes(boundary + Environment.NewLine);
			rs.Write(buff, 0, buff.Length);
			buff = Encoding.UTF8.GetBytes(string.Format("Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"{2}", "vzaar-api[thumbnail]", path, Environment.NewLine));
			rs.Write(buff, 0, buff.Length);
			buff = Encoding.ASCII.GetBytes(string.Format("Content-Type: {0}{1}{1}", "image/jpeg", Environment.NewLine));
			rs.Write(buff, 0, buff.Length);

			var imgStream = File.Open(path, FileMode.Open);
			imgStream.CopyTo(rs);

			buff = Encoding.ASCII.GetBytes(Environment.NewLine);
			rs.Write(buff, 0, buff.Length);

			var boundaryBuffer = Encoding.ASCII.GetBytes(boundary + "--");
			rs.Write(boundaryBuffer, 0, boundaryBuffer.Length);

			rs.Close();

			WebResponse response = null;
			var rawResponse = String.Empty;

			try
			{
				response = request.GetResponse();
				var reader = new StreamReader(response.GetResponseStream());
				rawResponse = reader.ReadToEnd();

			}
			catch (Exception ex)
			{
			    result = null;
			}
			if (rawResponse.Length > 0)
			{
				JObject resp = JObject.Parse(rawResponse);
				result = resp["vzaar-api"]["status"].ToString();
			}

			return result;
		}