note

namespace WebApplication17.Controllers
{


    public class LineChatController : ApiController
    {

        public string ChannelAccessToken = @"AI....";
        public string token = = @"AI....";


        /// <summary>
        /// v3_回覆圖型與貼圖
        /// 貼圖 :　Hhttps://devdocs.line.me/files/sticker_list.pdf
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public IHttpActionResult POST()        
        {



            isRock.LineBot.Bot bot;
            bot = new isRock.LineBot.Bot(ChannelAccessToken);

            try
            {
                //取得 http Post RawData(should be JSON)
                string postData = Request.Content.ReadAsStringAsync().Result;
                //剖析JSON
                var ReceivedMessage = isRock.LineBot.Utility.Parsing(postData);
                var UserSays = ReceivedMessage.events[0].message.text;
                var ReplyToken = ReceivedMessage.events[0].replyToken;
                // USER ID
                
                var userInfo = bot.GetUserInfo(ReceivedMessage.events.FirstOrDefault().source.userId);

                //依照用戶說的特定關鍵字來回應
                switch (UserSays.ToLower())
                {
                    case "1":
                        //回覆貼圖
                        bot.ReplyMessage(ReplyToken, 1, 11);
                        break;
                    case "2":
                        //回覆圖片
                        bot.ReplyMessage(ReplyToken, new Uri("https://external-tpe1-1.xx.fbcdn.net/safe_image.php?d=AQAc_b9uFr5VR0cg&w=476&h=249&url=fbstaging%3A%2F%2Fgraph.facebook.com%2Fstaging_resources%2FMDExMzQ5NDA3ODM1MDk4Nzg2OjI2MDY5NTAzMQ%3D%3D&cfs=1&upscale=1&_nc_hash=AQDJXtISk8IViKtg"));
                        break;
                    default:
                        //回覆訊息
                        string Message = "哈囉,"+ userInfo.displayName + " 你說了:" + UserSays;
                        //回覆用戶
                        bot.ReplyMessage(ReplyToken, Message);
                        break;
                }
                //回覆API OK
                return Ok();
            }
            catch (Exception ex)
            {
                string msg = ex.Message;
                return Ok();
            }
        }

        /// <summary>
        /// Copy User said_V2
        /// </summary>
        ///// <returns></returns>
        /*
        [HttpPost]
        public IHttpActionResult POST()
        {
            try
            {
                //取得 http Post RawData(should be JSON)
                string postData = Request.Content.ReadAsStringAsync().Result;
                //剖析JSON
                var ReceivedMessage = isRock.LineBot.Utility.Parsing(postData);
                //回覆訊息
                string Message;
                Message = "你說了:" + ReceivedMessage.events[0].message.text;
                //回覆用戶
                isRock.LineBot.Utility.ReplyMessage(ReceivedMessage.events[0].replyToken, Message, ChannelAccessToken);
                //回覆API OK
                return Ok();
            }
            catch (Exception ex)
            {
                return Ok();
            }
        }
        */

        /// <summary>
        /// DB_V1
        /// </summary>
        ///// <returns></returns>
        /*
        [HttpPost]
        public IHttpActionResult POST()
        {
            try
            {
                //取得資料
                string postData = Request.Content.ReadAsStringAsync().Result;
                //解析-取得資料
                var ReceivedMessage = isRock.LineBot.Utility.Parsing(postData);

                //使用這輸入
                string UserInput = ReceivedMessage.events[0].message.text;

                //回覆訊息
                string ReplyUserMsg = "";
                string ReplyToken = ReceivedMessage.events[0].replyToken;

                //加入SQL
                ///////////////////////////////////////////////////////////////////////////////////

                SqlDataAdapter apt;
                DataTable dt;

                using (SqlConnection con = new SqlConnection(WebConfigurationManager.ConnectionStrings["JudyCon"].ConnectionString.ToString()))
                {
                    String sql = @"SELECT ......";
                    SqlCommand cmd = new SqlCommand(sql, con);
                    SetCommandParam("@fun_code", UserInput, cmd);
                    apt = new SqlDataAdapter(sql, con);
                    apt.SelectCommand = cmd;
                    dt = new DataTable();
                    apt.Fill(dt);
                }

                if (dt.Rows.Count == 0)
                {
                    ReplyUserMsg = "查無資料";

                }
                else
                {
                    string a= ""; //
                    string b= ""; //
                    foreach (DataRow dr in dt.Rows)
                    {
                        a= dr["a"].ToString();
                        b= dr["b"].ToString();
              

                        ReplyUserMsg = a+ "_" + b;
                    }


                }


                //回覆用戶
                isRock.LineBot.Utility.ReplyMessage(ReplyToken, ReplyUserMsg, ChannelAccessToken);
                ///////////////////////////////////////////////////////////////////////////////////


                //呼叫回覆訊息的API
                return Ok();
            }
            catch (Exception ex)
            {
                return Ok();
            }
        }
        */


        public void SetCommandParam(string ParamName, object ParamValue, SqlCommand cmd)
        {
            if (cmd.Parameters.IndexOf(ParamName) == -1)
            {
                cmd.Parameters.AddWithValue(ParamName, ParamValue);
            }
            else
            {
                cmd.Parameters[ParamName].Value = ParamValue;
            }
        }

    }
}

var UserID = isRock.LineBot.Utility.Parsing(postData).events[0].source.userId;

(LINE 身分證?)