stored the apilayer's api key in .env file and made changes to app.js accordingly.

.env

@@ -0,0 +1 @@
+APILAYER=7a580c7a660c0e54158725e9c8aaff6d

app.js

@@ -1,6 +1,12 @@
 "use strict";
 // import * as config from './_config/config.js'
-const config = require('./_config/config.js');
+
+// if env not set on host , load from .env file (try to set on host as .env is not secure)
+if (process.env.NODE_ENV !== 'production') {
+  require('dotenv').config();
+}
+
+const config = require('./_config/config.js');1
 const express = require('express');
 const app = express();
 const path = require("path");
@@ -53,7 +59,7 @@ app.get('/api/redir', (req, res) => {
     //res.status(200).send("REDIRRRRRR");
     return request({
         "method": "GET",
-        "uri": "http://api.ipstack.com/" + ip + "?access_key=7a580c7a660c0e54158725e9c8aaff6d",
+        "uri": "http://api.ipstack.com/" + ip + "?access_key=process.env.APILAYER",
         "json": true,
         "resolveWithFullResponse": true,
     }).then((response) => {
@@ -295,4 +301,4 @@ app.get('/api/yt-desc/uploadRange/:startId/:endId/:nextPageToken', (req, res) =>
         else res.redirect(`/api/yt-desc/uploadRange/${req.params.startId}/${req.params.endId}/${json.nextPageToken}`);
 
     });
-});
+});

package.json

@@ -15,6 +15,7 @@
     "nodemailer": "^4.6.4",
     "nodemon": "^1.17.3",
     "request": "^2.85.0",
-    "request-promise": "^4.2.2"
+    "request-promise": "^4.2.2",
+    "dotenv": "^8.2.0" 
   }
 }