diff --git a/README.md b/README.md
new file mode 100644
index 0000000..cbc5b26
--- /dev/null
+++ b/README.md
@@ -0,0 +1,25 @@
+# MTFoS Bot
+
+## setup
+安裝依賴套件
+```
+$ npm install
+```
+啟動伺服器
+```
+$ DEBUG=* node index.js
+```
+
+## usage
+到 https://dev.twitch.tv/ 申請 Twitch APP  
+在專案根目錄建立 .env 設定檔案
+```
+CLIENT_ID=
+SECRET=
+REDIRECT_URI=
+REFRESH_TOKEN=
+```
+依序填入設定內容後啟動伺服器機器人就可以運作
+
+取得refresh_token
+啟動伺服器後進入 http://localhost:10230/chat_login 手動授權後即可取得 
\ No newline at end of file
diff --git a/index.js b/index.js
index a373acf..ce76e98 100644
--- a/index.js
+++ b/index.js
@@ -2,3 +2,5 @@
 require('dotenv').config()
 // load server
 require('./app')
+// load chatbot
+require('./libs/botClient')
\ No newline at end of file
diff --git a/libs/botClient.js b/libs/botClient.js
index 9fc2478..6bca69c 100644
--- a/libs/botClient.js
+++ b/libs/botClient.js
@@ -7,7 +7,29 @@ const { msgSplit } = require('./twitchParser')
 
 const ws = new WebSocket(`wss://${config.twitch.chat_host}:443`, 'irc')
 
-ws.on('open', async () => {
+ws.on('open', handleOpen)
+
+ws.on('message', handleMessage)
+
+ws.on('error', (err) => {
+  console.error(err)
+})
+
+ws.on('close', (code, reason) => {
+  console.log('exit', code, reason)
+})
+
+function handleMessage (data) {
+  let d = data.toString()
+  let darr = d.split(/\n/).filter(t => t).map(t => t.replace(/\r$/, ''))
+
+  for (let i in darr) {
+    log(darr[i])
+    msgSplit(ws, darr[i]).then(() => { })
+  }
+}
+
+async function handleOpen () {
   let db = await dbPool.connect()
 
   let body = null
@@ -32,14 +54,14 @@ ws.on('open', async () => {
           reject(error)
           return
         }
-        console.log(response.statusCode)
+        if (typeof body === 'string') body = JSON.parse(body)
         resolve(body)
       })
     })
   } catch (err) {
     console.log(err)
   }
-  console.log(typeof body)
+  
   if (body === null || !('access_token' in body)) throw new Error('access token not found')
 
   ws.send('PASS oauth:' + body.access_token)
@@ -49,6 +71,7 @@ ws.on('open', async () => {
   let query = `select "name", "join" from "public"."channels" where "join" = $1`
   let param = [true]
   let result = await db.query(query, param)
+  await db.end()
   if (result !== null && result.rows.length > 0) {
     for (let row of result.rows) {
       if ('name' in row) {
@@ -56,24 +79,6 @@ ws.on('open', async () => {
       }
     }
   }
-})
-
-ws.on('message', (data) => {
-  let d = data.toString()
-  let darr = d.split(/\n/).filter(t => t).map(t => t.replace(/\r$/, ''))
-
-  for (let i in darr) {
-    log(darr[i])
-    msgSplit(ws, darr[i]).then(() => { })
-  }
-})
-
-ws.on('error', (err) => {
-  console.error(err)
-})
-
-ws.on('close', (code, reason) => {
-  console.log('exit', code, reason)
-})
+}
 
 module.exports = ws
diff --git a/libs/twitchParser.js b/libs/twitchParser.js
index ffc6115..1637808 100644
--- a/libs/twitchParser.js
+++ b/libs/twitchParser.js
@@ -52,12 +52,13 @@ const parseCMD = async function (user, channel, msg) {
         ($1, $2, $3) 
         on conflict ("command", "channel") do update set 
           "message" = $3, 
-          "active" = true`
+          "active" = true,
+          "mtime" = now()`
       let param = [cmd, ch, tmpmsg]
       await db.query(query, param)
     } else if (/^!-/.test(txt[0])) {
       let cmd = txt[0].substr(2)
-      let query = `update "public"."commands" set "active" = $1 where "command" = $2 and "channel" = $3`
+      let query = `update "public"."commands" set "active" = $1, "mtime" = now() where "command" = $2 and "channel" = $3`
       let param = [false, cmd, ch]
       await db.query(query, param)
       m = `command "${cmd}" has removed`