export const get_client_ip = (ctx) => {
  return (
    ctx.request.headers["x-forwarded-for"] ||
    (ctx.request.connection && ctx.request.connection.remoteAddress) ||
    ctx.request.socket.remoteAddress ||
    (ctx.request.connection.socket &&
      ctx.request.connection.socket.remoteAddress) ||
    null
  );
};