add request module

server.js

@@ -5,8 +5,11 @@ const https = require('https');
 const express = require('express');
 const bodyParser = require('body-parser')
 
-const request = require('ajax-request');
+const request_ajax = require('ajax-request');
+const request = require('request');
 
+const polycalc = require('./codepoly.js');
+const { isEmptyObject } = require('jquery');
 
 const app = express();
 app.use(bodyParser.urlencoded({ extended: false }))