Update server.js

server.js

@@ -1,7 +1,7 @@
-const express = require('express');
-const cors = require('cors');
-const yahooFinance = require('yahoo-finance2').default;
-const fetch = require('node-fetch');
+import express from "express"
+import cors from 'cors'
+import yahooFinance from 'yahoo-finance2'
+import {fetch} from "node-fetch"
 
 const app = express();
 const PORT = 3001;