let getClientIp = function (req) {
return req.headers['x-forwarded-for'] ||
req.connection.remoteAddress ||
req.socket.remoteAddress ||
req.connection.socket.remoteAddress || '';
};
let ip = getClientIp(req).match(/\d+.\d+.\d+.\d+/);
console.log(ip);
ip = ip ? ip.join('.') : null;
console.log(ip);
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