Add Access tocken config.js for hiding

+const client_id = '743DE__EstcaLZzEsO5f';
+const client_secret = 'Y865wTpZ5y';
+
+const line_channel = {
+  channelAccessToken: 'TgqvFO0cHkSMEiRkJhLMCbfNzzO4Yhpdf8Ov+cr4tBPh2teSilW22TfEfTlxMHFBGufqslip3EYSdppQTCAThCEzf4xc6q8YEtPjF66hmyGOpLZoPK41VTWorrkOmBmmqysb11rElm50Wz6kvM/gogdB04t89/1O/w1cDnyilFU=',
+  channelSecret: 'ff1a934d000f5bfa265ed9fe2eedb0e7',
+};
+
+module.exports ={
+    line_channel : line_channel,
+    client_id : client_id,
+    client_secret : client_secret
+}
\ No newline at end of file

 var express = require('express');
 var app = express();
+const config = require('./API_config');
 const line = require('@line/bot-sdk');
 
-
 //papago api
 var request = require('request');
 
@@ -14,14 +14,10 @@ var languagedetect_api_url = 'https://openapi.naver.com/v1/papago/detectLangs';
 
 // Naver Auth Key
 //새로 발급받은 naver papago api id, pw 입력
-var client_id = '743DE__EstcaLZzEsO5f';
-var client_secret = 'Y865wTpZ5y';
-
-const config = {
-  channelAccessToken: 'TgqvFO0cHkSMEiRkJhLMCbfNzzO4Yhpdf8Ov+cr4tBPh2teSilW22TfEfTlxMHFBGufqslip3EYSdppQTCAThCEzf4xc6q8YEtPjF66hmyGOpLZoPK41VTWorrkOmBmmqysb11rElm50Wz6kvM/gogdB04t89/1O/w1cDnyilFU=',
-  channelSecret: 'ff1a934d000f5bfa265ed9fe2eedb0e7',
-};
-
+const client_id = config.client_id;
+const client_secret = config.client_secret;
+// Line Channel Access Tocken
+const config = config.line_channel;
 
 // create LINE SDK client
 const client = new line.Client(config);