Get remote client ip address NodeJS, ExpressJs

Question

I am trying to get client's ip address with Express js, code is as follows:

var ip;
if (req.headers['x-forwarded-for']) {
    ip = req.headers['x-forwarded-for'].split(",")[0];
} else if (req.connection && req.connection.remoteAddress) {
    ip = req.connection.remoteAddress;
} else {
    ip = req.ip;
}
ip = (ip.length < 15 ? ip : (ip.substr(0, 7) === '::ffff:' ? ip.substr(7) : undefined));


console.log('ip address',ip);

But every time I am getting localhost ip address not Public ip address, so how can I get public ip address instead of localhost ip address? can anyone help me please ?

Thanks in advance.

check server infrastructure has load balancers, proxies, etc... in front of your actual server, the above local values may return the local server, not what the actual public IP/port that the client originally connected to. — PRADEEP Kumar
– PRADEEP Kumar, Commented Nov 17, 2017 at 6:43

Gabriel Bleu · Accepted Answer · 2017-11-17 10:06:36Z

2

Check the last IP of the x-forwarded-for header.

For example, on aws :

the last IP address in the list is the IP address of the client http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/x-forwarded-headers.html#x-forwarded-for

answered Nov 17, 2017 at 10:06

Gabriel Bleu

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