An npm Package for Node.js uses the geoip-lite pack and add the search function for request
all that as in geoip-lite and
var geoip = require("req-geoip");
//for /some_path?ip=207.97.227.239
app.get('/some_path', function(req, res) {
geo = geoip.byIpParams(req);
res.status(200).send(geo);
});
//or for the requests:
app.get('*', function(req, res) {
var result = { };
result.ip = geoip.getIpFromRequest(req);
result.geo = geoip.byRequest(req);
res.status(200).send(result);
});