Where is module './get-username'? - automation

Question

I am attempting to write a script using the puppeteer library for node and I'm running it on the microtask platform rapidworkers.com
I have run into a challenge when writing part of the script that solves the captcha on the rapidworkers login page, when I try to run my script with node index.js I get the error: Cannot find module './get-username'
here is my code: (copied from https://jsoverson.medium.com/bypassing-captchas-with-headless-chrome-93f294518337)
const puppeteer = require('puppeteer');
const request = require('request-promise-native');
const poll = require('promise-poller').default;
const siteDetails = {
sitekey: '6LeEP20UAAAAAPYQsP7kIhE7XUT_LsDYjzO46uG3',
pageurl: 'https://rapidworkers.com/Login'
}
const getUsername = require('./get-username');
const getPassword = require('./get-password');
const apiKey = require('./api-key');
const chromeOptions = {
executablePath:'/Applications/Google Chrome.app/Contents/MacOS/Google
Chrome',
headless:false,
slowMo:10,
defaultViewport: null
};
(async function main() {
const browser = await puppeteer.launch(chromeOptions);
const page = await browser.newPage();
await page.goto('https://rapidworkers.com/Login');
const requestId = await initiateCaptchaRequest(apiKey);
await page.type('#username', getUsername());
const password = getPassword();
await page.type('#password', password);
const response = await pollForRequestResults(apiKey, requestId);
await page.evaluate(`document.getElementById("g-recaptcha-
response").innerHTML="${response}";`);
page.click('#register-form button[type=submit]');
})()
async function initiateCaptchaRequest(apiKey) {
const formData = {
method: 'userrecaptcha',
googlekey: siteDetails.sitekey,
key: apiKey,
pageurl: siteDetails.pageurl,
json: 1
};
const response = await request.post('http://2captcha.com/in.php', {form:
formData});
return JSON.parse(response).request;
}
async function pollForRequestResults(key, id, retries = 30, interval = 1500,
delay = 15000) {
await timeout(delay);
return poll({
taskFn: requestCaptchaResults(key, id),
interval,
retries
});
}
function requestCaptchaResults(apiKey, requestId) {
const url = `http://2captcha.com/res.php?
key=${apiKey}&action=get&id=${requestId}&json=1`;
return async function() {
return new Promise(async function(resolve, reject){
const rawResponse = await request.get(url);
const resp = JSON.parse(rawResponse);
if (resp.status === 0) return reject(resp.request);
resolve(resp.request);
});
}
}
const timeout = millis => new Promise(resolve => setTimeout(resolve,
millis))