added status reply

 var express = require('express');
 const request = require('request');
 const TARGET_URL = 'https://api.line.me/v2/bot/message/reply'
-const TOKEN = 'vGuGN1jGbvuOH79MdjIY00fdDr+nDp0ZGDUqzidK5u4c1KiMJQ1UjrgekSiptVVK2sMymCx7U761J1M/8So3gCWWRR34zvPp9YZpUFn07/gPd7yKVFPgZO/kTaEwyjvBk9WI+OfZo1ch8YD8x6iUzgdB04t89/1O/w1cDnyilFU='
+const BROAD_TARGET_URL = 'https://api.line.me/v2/bot/message/broadcast'
+const TOKEN = ''
 const fs = require('fs');
 const path = require('path');
 const HTTPS = require('https');
@@ -10,6 +11,7 @@ const sslport = 23023;
 
 const bodyParser = require('body-parser');
 var app = express();
+  
 app.use(bodyParser.json());
 app.post('/hook', function (req, res) {
 
@@ -23,6 +25,28 @@ app.post('/hook', function (req, res) {
     console.log('[request source] ', eventObj.source);
     console.log('[request message]', eventObj.message);
 
+    var isNationWide = message.text;
+    var sub_nationwide = "국내";
+    if(isNationWide.indexOf(sub_nationwide) !== -1){
+        replyNationWide(eventObj);
+    }
+    else if(message.text == "야" || message.text == "도움말"){
+        hello(eventObj)
+    }
+
+    res.sendStatus(200);
+});
+
+//reply
+function replyNationWide(eventObj) {
+    //read status
+    var strings = ['날짜', '확진환자', '격리해제', '검사진행', '사망자']
+    var fs = require('fs');
+    var array = fs.readFileSync('status.txt').toString().split("\n");
+    for(i in array) {
+        strings[i] = array[i]
+    }
+
     request.post(
         {
             url: TARGET_URL,
@@ -34,6 +58,76 @@ app.post('/hook', function (req, res) {
                 "messages":[
                     {
                         "type":"text",
+                        "text":strings[0]
+                    },
+                    {
+                        "type":"text",
+                        "text":strings[1]
+                    },
+                    {
+                        "type":"text",
+                        "text":strings[2]
+                    },
+                    {
+                        "type":"text",
+                        "text":strings[3]
+                    },
+                    {
+                        "type":"text",
+                        "text":strings[4]
+                    },
+                ]
+            }
+        },(error, response, body) => {
+            console.log(body)
+        });
+}
+
+//hello
+function hello(eventObj) {
+   
+    request.post(
+        {
+            url: TARGET_URL,
+            headers: {
+                'Authorization': `Bearer ${TOKEN}`
+            },
+            json: {
+                "replyToken":eventObj.replyToken,
+                "messages":[
+                    {
+                        "type":"text",
+                        "text":"안녕하십니까. 코로나 도우미 입니다."
+                    },
+                    {
+                        "type":"text",
+                        "text":"국내 현황은 '국내'를 타이핑 해주세요."
+                    },
+                    {
+                        "type": "sticker",
+                        "packageId": "11539",
+                        "stickerId": "52114110"
+                    }
+
+                ]
+            }
+        },(error, response, body) => {
+            console.log(body)
+        });
+}
+
+// Broadcast
+function broadcast(eventObj){
+    request.post(
+        {
+            url: BROAD_TARGET_URL,
+            headers: {
+                'Authorization': `Bearer ${TOKEN}`
+            },
+            json: {
+                "messages":[
+                    {
+                        "type":"text",
                         "text":"Hello, user"
                     },
                     {
@@ -45,10 +139,7 @@ app.post('/hook', function (req, res) {
         },(error, response, body) => {
             console.log(body)
         });
-    
-
-    res.sendStatus(200);
-});
+}
 
 try {
     const option = {