Rest API - No GUI

nunovalente

Anonymous

I register a native app but generate the token not via the ADAL library. Instead I'm calling the REST API directly and the token generated could help me to refresh/retrive datasets etc.

 static string getAccessTokenSilently()
        {
            string resourceUri = "https://analysis.windows.net/powerbi/api";
            HttpWebRequest request = System.Net.HttpWebRequest.CreateHttp("https://login.windows.net/common/oauth2/token");
            //POST web request to create a datasource.
            request.KeepAlive = true;
            request.Method = "POST";
            request.ContentLength = 0;
            request.ContentType = "application/x-www-form-urlencoded"; 

            NameValueCollection parsedQueryString = HttpUtility.ParseQueryString(String.Empty);
            parsedQueryString.Add("client_id", clientID);
            parsedQueryString.Add("grant_type", "password");
            parsedQueryString.Add("resource", resourceUri);
            parsedQueryString.Add("username", username);
            parsedQueryString.Add("password", password);
            string postdata = parsedQueryString.ToString();


            //POST web request
            byte[] dataByteArray = System.Text.Encoding.ASCII.GetBytes(postdata); ;
            request.ContentLength = dataByteArray.Length;

            //Write JSON byte[] into a Stream
            using (Stream writer = request.GetRequestStream())
            {
                writer.Write(dataByteArray, 0, dataByteArray.Length);
                var response = (HttpWebResponse)request.GetResponse();
                var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
                dynamic responseJson = JsonConvert.DeserializeObject<dynamic>(responseString);
                return responseJson["access_token"];
            }


        }