diff --git a/background.js b/background.js
index 1c3db37..1413a1c 100644
--- a/background.js
+++ b/background.js
@@ -2,6 +2,8 @@ const cron = require('cron')
 const DB = require('./libs/database')
 const fbParser = require('./libs/facebook-pageparse')
 const api = require('./libs/api-action')
+const event = require('./event')
+const axios = require('axios')
 
 new cron.CronJob({ // eslint-disable-line
   cronTime: '00 */2 * * * *',
@@ -204,7 +206,7 @@ new cron.CronJob({ //eslint-disable-line
     let db = await DB.connect()
 
     try {
-      let time = Date.now() + (4 * 1000 * 60 * 60)
+      let time = Math.floor((Date.now() + (4 * 1000 * 60 * 60)) / 1000)
       let text = `select "id", "name", "lastvideo", "expire" from "public"."youtube_channel" where "expire" = -1 or "expire" < $1`
       let values = [time]
       let result = await db.query({
@@ -231,3 +233,68 @@ const regYoutubeWebhook = async (yt = null) => {
     console.log(err)
   }
 }
+
+// check donate
+new cron.CronJob({ //eslint-disable-line
+  cronTime: '*/5 * * * * *',
+  onTick: async () => {
+    let db = await DB.connect()
+
+    try {
+      let text = `select "name", "id", "opayid" from "public"."twitch_channel" where "opayid" != '' and "join" = true`
+      let result = await db.query({ text })
+      if (result.rowCount > 0) {
+        result.rows.forEach(t => {
+          checkDonate(t.name, t.opayid).then(() => {}).catch(() => {})
+        })
+      }
+    } catch (err) {
+      console.log(err)
+    }
+
+    db.release()
+  },
+  runOnInit: true,
+  start: true,
+  timeZone: 'Asia/Taipei'
+})
+
+const checkDonate = async (loginName = null, opayid = null) => {
+  if (typeof loginName !== 'string' || loginName.trim().length === 0) return null
+  if (typeof opayid !== 'string' || opayid.trim().length === 0) return null
+  let url = `https://payment.opay.tw/Broadcaster/CheckDonate/${opayid}`
+  let db = await DB.connect()
+
+  // donate response format
+  // {
+  //   "donateid": "10821396",
+  //   "name": "XXX",
+  //   "amount": 100,
+  //   "msg": "這是一筆贊助測試～"
+  // }
+
+  try {
+    let result = await axios({
+      url,
+      method: 'post'
+    })
+    if ('data' in result && Array.isArray(result.data) && result.data.length > 0) {
+      let ids = result.data.map(t => t.donateid)
+      let dbres = await db.query({
+        text: `select * from "public"."donate_list" where "donate_id" in ($1)`,
+        values: [ids]
+      })
+      let list = result.data.filter(t => {
+        for (let i of dbres.rows) {
+          if (i.donate_id === t.donateid) return false
+        }
+        return true
+      })
+      
+    }
+  } catch (err) {
+    console.log(err)
+  }
+
+  db.release()
+}
diff --git a/bin/dbVersion.json b/bin/dbVersion.json
index 0b320b2..3a2ad2d 100644
--- a/bin/dbVersion.json
+++ b/bin/dbVersion.json
@@ -9,7 +9,8 @@
     {"file": "20180711-1.sql", "version": 7},
     {"file": "20180712-1.sql", "version": 8},
     {"file": "20180716-1.sql", "version": 9},
-    {"file": "20180718-1.sql", "version": 10}
+    {"file": "20180718-1.sql", "version": 10},
+    {"file": "20180719-1.sql", "version": 11}
   ],
   "test": []
 }
\ No newline at end of file
diff --git a/config/index.js b/config/index.js
index d67cff6..4a51cc2 100644
--- a/config/index.js
+++ b/config/index.js
@@ -21,5 +21,9 @@ module.exports = {
     user: process.env.DB_USER || 'postgres',
     pass: process.env.DB_PASS || '',
     dbname: process.env.DB_NAME || 'mtfosbot'
+  },
+  redis: {
+    host: process.env.REDIS_HOST || 'localhost',
+    port: process.env.REDIS_PORT || 6379
   }
 }
diff --git a/event.js b/event.js
new file mode 100644
index 0000000..36cd5bb
--- /dev/null
+++ b/event.js
@@ -0,0 +1,6 @@
+const EventEmitter = require('events')
+
+class EventCls extends EventEmitter {
+}
+
+module.exports = new EventCls()
diff --git a/index.js b/index.js
index 7210190..7e02b8d 100644
--- a/index.js
+++ b/index.js
@@ -7,3 +7,6 @@ try {
 } catch (err) {}
 require('./app')
 require('./background')
+require('./event')
+const twitchChat = require('./libs/twitch-bot')
+twitchChat.runBot()
diff --git a/jsconfig.json b/jsconfig.json
index c2ae2a2..1743bc8 100644
--- a/jsconfig.json
+++ b/jsconfig.json
@@ -5,7 +5,8 @@
     "paths": {
       "@libs/*": ["libs/*"],
       "@config/*": ["config/*"],
-      "@route/*": ["route/*"]
+      "@route/*": ["route/*"],
+      "@root/*": ["./*"]
     }
   }
 }
\ No newline at end of file
diff --git a/libs/redis.js b/libs/redis.js
new file mode 100644
index 0000000..dfad1b4
--- /dev/null
+++ b/libs/redis.js
@@ -0,0 +1,91 @@
+const Redis = require('ioredis')
+const config = require('@config/index')
+
+class RedisStore {
+  constructor () {
+    this._redis = new Redis(config.redis.port, config.redis.host)
+    this._expires = 86400 // day (sec)
+  }
+
+  /**
+   * set data to redis
+   * @param {string} key
+   * @param {string|object} data string or json
+   * @param {number} expires default 1 day
+   */
+  set (key, data = null, expires = null) {
+    if (!key || typeof key !== 'string') return
+    if (key.trim().length === 0) return
+    if (typeof data === 'object') {
+      try {
+        data = JSON.stringify(data)
+      } catch (err) {}
+    }
+
+    if (expires === null || !isFinite(expires)) expires = this._expires
+
+    let args = [`${key}`, data]
+    if (expires > 0) args.push('EX', expires)
+
+    this._redis.set(...args)
+  }
+
+  /**
+   * get data from redis
+   * @param {string} key
+   * @param {boolean=} toJSON parse data to json (default true)
+   */
+  async get (key, toJSON = true) {
+    if (!key || typeof key !== 'string') return null
+    if (key.trim().length === 0) return null
+    let self = this
+    let data = null
+    try {
+      data = await self._redis.get(`${key}`)
+    } catch (err) {
+      return null
+    }
+    if (toJSON === true) {
+      try {
+        data = JSON.parse(data)
+      } catch (err) {
+        return null
+      }
+    }
+    return data
+  }
+
+  /**
+   * delete data
+   * @param {string} key
+   */
+  del (key) {
+    if (!key || typeof key !== 'string') return null
+    if (key.trim().length === 0) return null
+    this._redis.del(`${key}`)
+  }
+
+  /**
+   * show all this project namespace data
+   */
+  async show () {
+    // return this._store
+    let self = this
+    let json = {}
+    let keys = await this._redis.keys(`*`)
+    for (let i in keys) {
+      try {
+        let data = await this._redis.get(keys[i])
+        let j = JSON.parse(data)
+        let k = keys[i].replace(self._namespace, '')
+        json[k] = j
+      } catch (err) {
+        continue
+      }
+    }
+
+    return json
+  }
+}
+
+module.exports = new RedisStore()
diff --git a/libs/twitch-bot/index.js b/libs/twitch-bot/index.js
index 7b4ea69..f94fa33 100644
--- a/libs/twitch-bot/index.js
+++ b/libs/twitch-bot/index.js
@@ -4,12 +4,19 @@ const DB = require('@libs/database')
 const {
   msgSplit
 } = require('./parser')
+const event = require('@root/event')
 
 class WS {
   constructor () {
     /** @type {WebSocket} */
     this.ws = null
     this.join = []
+    event.on('twitchJoin', (channel) => {
+      this.joinChannel(channel)
+    })
+    event.on('twitchSend', data => {
+      this.sendMsg(data.channel, data.message)
+    })
   }
 
   runBot () {
@@ -89,6 +96,7 @@ class WS {
   joinChannel (channel = null) {
     if (this.ws === null || !('send' in this.ws) || typeof this.ws.send !== 'function') return null
     if (channel === null || typeof channel !== 'string' || channel.trim().length === 0) return null
+    if (this.join.indexOf(channel) !== -1) return null
     this.ws.send(`JOIN #${channel.trim()}`)
     this.join.push(channel.trim())
   }
diff --git a/package.json b/package.json
index 7b4450a..a8d7ca0 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
     "cron": "^1.3.0",
     "dotenv": "^6.0.0",
     "gm": "^1.23.1",
+    "ioredis": "^3.2.2",
     "koa": "^2.5.1",
     "koa-body": "^4.0.3",
     "koa-logger": "^3.2.0",
@@ -35,6 +36,7 @@
   "_moduleAliases": {
     "@libs": "libs",
     "@config": "config",
-    "@route": "route"
+    "@route": "route",
+    "@root": "."
   }
 }
diff --git a/schema/20180718-1.sql b/schema/20180718-1.sql
new file mode 100644
index 0000000..b83770b
--- /dev/null
+++ b/schema/20180718-1.sql
@@ -0,0 +1 @@
+ALTER TABLE public.youtube_channel ALTER COLUMN expire TYPE bigint USING expire::bigint;
\ No newline at end of file
diff --git a/schema/20180719-1.sql b/schema/20180719-1.sql
new file mode 100644
index 0000000..74cb0c6
--- /dev/null
+++ b/schema/20180719-1.sql
@@ -0,0 +1,16 @@
+create extension  "uuid-ossp" with  schema public;
+
+-- auto-generated definition
+create table public.donate_list
+(
+  id        uuid default public.uuid_generate_v4()                    not null
+    constraint donate_list_pkey
+    primary key,
+  opayid    varchar(200)                                       not null,
+  donate_id varchar(200)                                       not null,
+  price     integer default 0                                  not null,
+  text      varchar(1000) default '' :: character varying      not null,
+  ctime     timestamp with time zone default CURRENT_TIMESTAMP not null,
+  name      varchar(100) default '' :: character varying       not null
+);
+