was about to delete cus the api needed proxy, rather leave it in this dumpster for record.

isproxy.ts

import axiod from "https://deno.land/x/axiod@0.26.2/mod.ts";
const subdomains = ["ping", "eu", "us", "au", "whitelabel", "rotate", "fn2"];
const proxies = new Map<string, ProxyData>();
interface ProxyData {
  success: boolean;
  isProxy: boolean;
  country: string;
  region: string;
  city: string;
  hostname: string;
  isp: string;
  error?: string;
}
export const isProxy = async (
  ip: string,
): Promise<ProxyData | { error: string }> => {
  try {
    if (proxies.has(ip)) return proxies.get(ip) as ProxyData;
    const subdomain = subdomains[Math.floor(Math.random() * subdomains.length)];
    console.log(subdomain);
    const source = await axiod(
      `https://${subdomain}.ipqualityscore.com/free-ip-lookup-proxy-vpn-test/lookup/${ip}`,
      {
        headers: {
          accept: "s",
          "accept-language": "en-GB,en;q=0.9,en-US;q=0.8",
        },
        responseType: "text",
        timeout: 50000,
      },
    );
    const [, data] = source.data.match(/>(.*)<\/h2>/) as string;
    const [isp_city, region, country] = data
      .split(",")
      .map((x: string) => x.trim());
    const [isp, city] = isp_city.split(" - ");
    const [, hostname] = source.data.match(
      /<td>Hostname<\/td>\s+<td>(.*)<\/td>/,
    ) as string;
    const isProxy = !source.data.includes("Not A Proxy/VPN");
    proxies.set(ip, {
      success: true,
      isProxy,
      country,
      region,
      city,
      hostname,
      isp,
    });
    if (isp.startsWith("Reserved") || !isp) return { success: false, error: "Invalid IP" };
    return {
      success: true,
      isProxy,
      country,
      region,
      city,
      hostname,
      isp,
    };
  } catch (err) {
    console.log(err);
    return { success: false, error: err.message };
  }
};
export const isValidIP = (input: string): boolean =>
  /^([0-9]{1,3}\.){3}[0-9]{1,3}$/.test(input) ||
  /^([a-f0-9]{1,4}:){7}[a-f0-9]{1,4}$/i.test(input);
export default isProxy;