usermodeling

using System;
using System.Net.Http;
using System.Web;
using System.Net;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;

namespace WatsonWithWindowsForms
{
    class WatsonQA
    {
        private string url;
        private string uid;
        private string pwd;

        public WatsonQA(string baseURL, string uid, string pwd)
        {
            this.url = baseURL + "api/v2/profile/";
            this.uid = uid;
            this.pwd = pwd;

            Console.WriteLine("url:" + this.url);
            Console.WriteLine("uid:" + this.uid);
            Console.WriteLine("pwd:" + this.pwd);
        }

        public string AskQuestion()
        {
            string answers = null;

            String line = "";
            using (StreamReader sr = new StreamReader("C:\\Appl_VB\\TestWatson\\Data\\Comments\\test.txt"))
            {
                line = sr.ReadToEnd();
                //Regex rgx = new Regex("[^a-zA-Z0-9 , .()!?$%]");
                //line = rgx.Replace(line, "");
            }

            string data = "";
            data += "{";
            data+= "\"contentItems\": [";
            data+= "{";
            data+= "\"id\": \"MyUser\",";
            data+= "\"userid\": \"author\",";
            data+= "\"sourceid\": \"reddit\",";
            data+= "\"contenttype\": \"text/plain\",";
            data+= "\"language\": \"en\",";
            data+= "\"content\":";
            data+= "\"" + line + "\",";
            data+= "}";
            data+= "]";
            data+= "}";

            string json = "{\"contentItems\": [{\"id\": \"xxx\",\"userid\": \"abc\", \"sourceid\": \"freetext\", \"contenttype\": \"text/plain\", \"language\": \"en\", \"content\": ";
            json += "\"";
            json += line;
            json += "\"";
            json += "}]}";

            var qaCall = (HttpWebRequest)WebRequest.Create(url);

            try
            {
                string auth = string.Format("{0}:{1}", this.uid, this.pwd);
                string auth64 = Convert.ToBase64String(Encoding.ASCII.GetBytes(auth));
                string credentials = string.Format("{0} {1}", "Basic", auth64);

                qaCall.Headers[HttpRequestHeader.Authorization] = credentials;
                qaCall.Method = "POST";
                qaCall.Accept = "application/json";
                qaCall.ContentType = "application/json";

                var encoding = new UTF8Encoding();
                var payload = Encoding.GetEncoding("iso-8859-1").GetBytes(json);
                qaCall.ContentLength = payload.Length;
                using (var callStream = qaCall.GetRequestStream())
                {
                    callStream.Write(payload, 0, payload.Length);
                }
            }
            catch (Exception e)
            {
                Console.Out.WriteLine("error:" + e.Message);
                Console.ReadKey();
            }

            try
            {
                WebResponse qaResponse = qaCall.GetResponse();
                Stream requestStream = qaResponse.GetResponseStream();
                StreamReader responseReader = new StreamReader(requestStream);
                answers = responseReader.ReadToEnd();
                responseReader.Close();
            }
            catch (System.Net.WebException e)
            {
                string toto = e.Response.ToString();
                Console.Out.WriteLine("errors:" + e.Message);
                Console.ReadKey();
            }
            catch (Exception e)
            {
                Console.Out.WriteLine("error:" + e.Message);
                Console.ReadKey();
            }

            return answers;
        }
    }




}