Get User Location by Ip Address

How can I approximate user location through their IP address on server side?

For a local solution, you can use a database file. You can find free ones with virtually limited accuracy below:

• Maxmind: https://dev.maxmind.com/geoip/geoip2/geolite2/
• Ip2location: https://lite.ip2location.com/database/ip-country-region-city-latitude-longitude-zipcode-timezone

There exists paying variants with better accuracy. However, when using a local database file, you should ask yourself some questions:

• Do you want to implement the local database file loading/lookup by yourself?
• Do you know how to update your database file with no service interruption (IP allocations change frequently)?
• Is your solution scaling to your needs (in terms of requests/second and latency)?
• Don't you need to deduce transient information (timezone, currency, etc.)?

If the answer is No to one of the previous questions, you should most probably use an IP Geolocation API. I suggest having a look at my service, Ipregistry: it is fast, reliable and inexpensive.

Finding Location through IP address Nodejs mongodb

You can utilize GeoIP-lite to get the geodata from the ip address.

var geoip = require('geoip-lite');

var ip = "207.97.227.239";
var geo = geoip.lookup(ip);

console.log(geo);
/*{ range: [ 3479297920, 3479301339 ],
  country: 'US',
  region: 'TX',
  city: 'San Antonio',
  ll: [ 29.4889, -98.3987 ],
  metro: 641,
  zip: 78218 }*/

How to get the geographic location using IP Address in asp.net mvc

This should help you - http://freegeoip.net/

freegeoip.net is a public REST API for searching geolocation of IP addresses and host names.
Send HTTP GET requests to: freegeoip.net/{format}/{ip_or_hostname}. The API supports both HTTP and HTTPS and Supported formats are csv, xml or json.

IP to Location using Javascript

You can submit the IP you receive to an online geolocation service, such as http://www.geoplugin.net/json.gp?ip=<your ip here>&jsoncallback=<suitable javascript function in your source>, then including the source it returns which will run the function you specify in jsoncallback with the geolocation information.

Alternatively, you may want to look into HTML5's geolocation features -- you can see a demo of it in action here. The advantage of this is that you do not need to make requests to foreign servers, but it may not work on browsers that do not support HTML5.

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