Proxy not working for nodejs requesting json

So I am trying to use a proxy to scrape json data from my api site using some code here:

request({
  url: `https://gist.githubusercontent.com/im-moies/d9ab609225221fccd5bfc7883d43090d/raw/d865afe7deb50d41168f0dde0302f3a9cc700025/gistfile1.txt`,
  proxy: proxyGenerator(),
  json: true,
  }, (err, res, body) => {
  if (err) { 
    return console.log(err); 
  }

but the proxyGenerator() doesn't work which I'm using the exact code from https://zenscrape.com/how-to-build-a-simple-proxy-rotator-in-node-js/

(code works theres more just the proxy thing doesn't seem to work with the json for some reason?)

function proxyGenerator() {
  let ip_addresses = [];
  let port_numbers = [];
  let proxy;

  request("https://sslproxies.org/", function(error, response, html) {
    if (!error && response.statusCode == 200) {
      const $ = cheerio.load(html);

      $("td:nth-child(1)").each(function(index, value) {
        ip_addresses[index] = $(this).text();
      });

      $("td:nth-child(2)").each(function(index, value) {
        port_numbers[index] = $(this).text();
      });
    } else {
      console.log("Error loading proxy, please try again");
    }

    ip_addresses.join(", ");
    port_numbers.join(", ");