Get IP Address

ip-address.js

/**
 * @returns {Promise<{ ip: string | null; }>}
 */
function getIpAddress() {
  return fetch("https://www.cloudflare.com/cdn-cgi/trace")
    .then((response) => response.text())
    .then((data) => {
      const result = data
        .trim()
        .split("\n")
        .reduce((obj, pair) => {
          const [key, value] = pair.split("=");
          obj[key] = value;

          return obj;
        }, {});

      return { ip: result.ip || null };
    })
    .catch(() => {
      return { ip: null };
    });
}