How to properly configure a server on node js to receive notifications about incoming payments Yandex Money (yandex money)?

Question

Node.js

Colleagues, good afternoon!
I re-read the Yandex Money documentation and looked through all the posts on this topic, but I can’t fully figure it out.
I am making a skeleton for a small telegram online store with the ability to pay by card through Yandex Money.
For now, I do everything manually directly from the code editor to check if it works.
Set up a wallet to send notifications when receiving a payment:

Created an https server:

const express = require('express');
const app = express();
const https = require('https');
const fs = require('fs');
const port = 3000;
const options = {
    key: fs.readFileSync('./key.pem'),
    cert: fs.readFileSync('./cert.pem')
};

const Server = ()=>{
    app.post('/receive',(req, res)=>{
        console.log('you have got some incoming payment');
    res.status(200).send();
    });

    app.get('/',(req, res)=>{
        console.log('get request');
    res.status(200).send();
    });

    https.createServer(options, app)
        .listen(port, function () {
            console.log('Example app listening on port 3000!')
        });

I do a test on the same Yandex Money page:

Everything is fine and the server catches the request:

As a result, I create a one-time application instance:

yandexMoney.ExternalPayment.getInstanceId(clientId,
    function getInstanceComplete(err, data) {
        if(err) {
            // process error
        }
        var instanceId = data.instance_id;
        // save it to DB
        console.log('data.instance_id: ', data.instance_id)

    });

After saving the application instance, I make a trial payment using the card:

var externalPayment = new yandexMoney.ExternalPayment(config.instanceId)

var options = {
     pattern_id: 'p2p',
    instance_id: config.instanceId,
    to: '4100145656XXXXX',
    amount: 5,
    message: 'testpayment',
    merchantArticleId: 123

};

externalPayment.request(options, function requestComplete(err, data) {
    if(err) {
        // process error
    }
    var requestId = data.request_id;
    console.log('data', data);
    externalPayment.process({"request_id": requestId,
        ext_auth_success_uri: 'https://t.me/kursy_naXXXXXX,
        ext_auth_fail_uri: 'https://t.me/kursy_naXXXXXX'

    }, function (err, data) {
        if(err) {
            // process error
        }
        // process data
        console.log('dataProcess', data)
    });
});

I receive a link and parameters for payment:

I make a payment, but the notification does not come
. Maybe it's a secret word or something else.
I re-read the documentation and all the posts on the toaster, but I can’t figure out how to properly configure the server after all.
Tell me how to proceed or where you can find information.
Thanks in advance.