I want to remove the cache value of ip address for every 10sec of TTL value. The following is my code,

app.get('/getIpAdress/:url', function (req, res) { // İSTEMCİNİN '/' İSTEĞİNE KARŞILIK VEREN KOD BLOĞU
        dns.resolve4(req.params.url, { 'ttl': true }, (err, address, family) => {
            if (err) {
                let obj = {
                    ip: '',
                    statusCode: 1,
                    resp: 'Ip address not found',
                    timeStamp: new Date()
                }
                res.status(200).json(obj);
                return;
            };
            sendResponse(address, res);
        });

        function sendResponse(address, res) {
            let obj = {
                url: req.params.url,
                ip: address,
                resp: 'Ip address found',
                statusCode: 0,
                timeStamp: new Date()
            }
            res.status(200).json(obj);
        }
    });

}

The above code returns ip and ttl but i want the ip to be changed for every 10 secs. Can someone help me. Thanks.

The above code returns ip and ttl but i want the ip to be changed for every 10 secs. Can someone help me. Thanks.