JSforce not integrating with express in Node - express

Question

To give some context, I am a front end dev tasked with intergrating salesforce into a react app. This is a new learning curve for me as I am a SF newbie. I have been looking for a way to make intergration easier and I came across a video that showed how I can use a node packaged called JSforce to auth and fetch data from SF to my node express backend. I did as the video suggested but something appears to be not working as I am not console logging anything. Can anyone who has experience in using Jsforce take a look at my code below and let me know where I have gone wrong?
const express = require('express');
const app = express();
const port = 5000;
const jsforce = require('jsforce');
const username = 'blah';
const password = 'blah+ security token';
var conn = new jsforce.Connection({
// you can change loginUrl to connect to sandbox or prerelease env.
loginUrl: 'https://tahina-test2-dev-ed.my.salesforce.com/'
});
conn.login(username, password, function(err, userInfo) {
if (err) {
return console.error(err);
}
// Now you can get the access token and instance URL information.
// Save them to establish connection next time.
console.log(conn.accessToken);
console.log(conn.instanceUrl);
// logged in user property
console.log('User ID: ' + userInfo.id);
console.log('Org ID: ' + userInfo.organizationId);
// ...
conn.sobject('Account').retrieve('0012X000022HhE5QAK', function(err, account) {
if (err) {
return console.error(err);
}
console.log('Name : ' + account.Name);
// ...
});
});
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`));