How do I generate Basic HTTP RFC2617 Authentication code? - node.js

Question

My problem is exactly same as this one.
The fact is, it's answer didn't worked for me. It is still showing "wrong code".
{ message: 'Access denied: Invalid token, wrong code' }
headers are
headers: {
'Content-Type': 'application/json',
Authorization: 'Basic bW9oaXRrdW1hcnNpbmdoMTIzNDRAZ21haWwuY29tOjE1NDg3NjY3Njg='
}
Here is the code used
import axios from 'axios';
import base64 from 'base-64';
import utf8 from 'utf8';
import { totp } from 'otplib';
const reqJSON =
{
github_url: GITHUB_URL,
contact_email: EMAIL
}
const stringData = JSON.stringify(reqJSON);
const URL = API_URL;
const sharedSecret = reqJSON.contact_email + "SOME_STRING";
totp.options = { digits: 10, algorithm: "sha512", epoch: 0 }
const myTotp = totp.generate(sharedSecret);
const isValid = totp.check(myTotp, sharedSecret);
console.log("Token Info:", { myTotp, isValid });
const authStringUTF = reqJSON.contact_email + ":" + myTotp;
const bytes = utf8.encode(authStringUTF);
const encoded = base64.encode(bytes);
console.log('encoded ->', encoded);
const createReq = async () => {
try {
const config = {
headers: {
'Content-Type': 'application/json',
'Authorization': "Basic " + encoded
}
};
console.log("Making req", { URL, reqJSON, config });
const res = await axios.post(URL, stringData, config);
console.log(res.data);
}
catch (err) {
console.error(err.response.data);
}
};
createReq();
EDIT - Added current code for generating Basic HTTP RFC2617 Authentication Code
Thanks you so much!