GeoIP binding for nodejs. Static native library included. Also deployable on heroku.
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README.md

GeoIP binding for nodejs

Get geolocation information based on domain or IP address.

##Important Notification

###Technical Architecture

new_architecture

###Dependency

####libgeoip C library

This module requires the C libgeoip library. You can either use a version installed on your system or let the module use the version included with it.

If your os has a system package manager (e.g, on linux, apt of ubuntu, yum of fedora, pacman of arch. MacPorts and homebrew on OSX), then, there is a very high possibility that there is alreay a geoip c library package inside the repository.

If not, you can build for yourself:

wget http://geolite.maxmind.com/download/geoip/api/c/GeoIP-1.4.7.tar.gz
tar -xvzf GeoIP-1.4.7.tar.gz
cd GeoIP-1.4.7
./configure --prefix=/usr
make
sudo make install

##Data

Befor you can use this package, you need to download or buy some data from www.maxmind.com.

There are some free databases among some commercial versions, the free databases can be found here.

##Install

[sudo] npm install geoip-static [-g]

##Usage

###Check edition

var edition = geoip.check('/path/to/file');

console.log(edition); // output 'country', 'city', 'org'... so on

###Create a new instance of sub-module, for example:

var city = new geoip.City('/path/to/GeoLiteCity.dat', false);  // not to cache the database

var city = new geoip.City('/path/to/GeoLiteCity.dat');  // the default option is cache

###Update database on the fly:

city.update('/path/to/new/GeoLiteCity.dat');

##Modules

###Country

ipv4 address lookup

// Open the country data file
var Country = geoip.Country;

var country = new Country('/path/to/GeoIP.dat');

// Synchronous method(the recommended way):
var country_obj = country.lookupSync('8.8.8.8');

console.log(country_obj);
/*
  { country_code: 'US',
    country_code3: 'USA',
    country_name: 'United States',
    continent_code: 'NA'
  }
*/

// Asynchronous method:
country.lookup('www.google.com', function(err, data) {
    if (err) {throw err;}
    if (data) { // if not found, just return null
        console.log(data);  // same as lookup method
    }
});

ipv6 address lookup (Currently only Country and City module supports ipv6)

// Open the ipv6 edition of country module
var Country6 = geoip.Country6;

var country_v6 = new Country6('/path/to/GeoIPv6.dat');

// Synchronous method
var country_obj_v6 = country_v6.lookupSync('2607:f0d0:1002:0051:0000:0000:0000:0004');

console.log(country_obj_v6); // Same as ipv4
/*
  { country_code: 'US',
    country_code3: 'USA',
    country_name: 'United States',
    continent_code: 'NA'
  }
*/

// Asynchronous method
country_v6.lookup('2400:2352:b0f1:36c5:aa9d:694a:2f98:40bd', function(err, data_v6) {
    if (err) {throw err;}
    if (data_v6) {
        console.log(data_v6);
        /*
         {
           country_code: 'JP',
           country_code3: 'JPN',
           country_name: 'Japan',
           continent_code: 'AS'
          }

        */
    }
});

###City

ipv4 address lookup

// Open the GeoLiteCity.dat file first.
var City = geoip.City;
var city = new City('/path/to/GeoLiteCity.dat');

Synchronous method:

  var city_obj = city.lookupSync('8.8.8.8');
  console.log(city_obj);
  /*
  Return an object of city information
  {
   "country_code":"US",
   "country_code3":"USA",
   "country_name":"United States",
   "continet_code":"NA",
   "region":"CA",
   "city":"Mountain View",
   "postal_code":"94043",
   "latitude":37.41919999999999,
   "longitude":-122.0574,
   "dma_code":807,
   "metro_code":807,
   "area_code":650
   }
   */

Asynchronous method:

  city.lookup('www.google.com', function(err, data) {
    if (err) {throw err;}
    if (data) {
        console.log(data);
    }
  });

ipv6 address lookup

// Open the GeoLiteCityv6.dat file first.
var City6 = geoip.City6;
var city6 = new City6('/path/to/GeoLiteCityv6.dat');             

Synchronous method:

  var city6_obj = city6.lookupSync('2002:7679:b9af:db9b:ab51:501a:db4e:2d');
  console.log(city6_obj);
  /*
  { 
   country_code: 'CN',
   country_code3: 'CHN',
   country_name: 'China',
   region: '32',
   city: 'Chengdu',
   latitude: 30.66670036315918,
   longitude: 104.06670379638672,
   continent_code: 'AS'
  }
  */

Asynchronous method:

  city6.lookup('2002:c6aa:2dc8:b719:4314:2a7d:e31c:fe73', function(err, data) {
    if (err) {throw err;}
    if (data) {
        console.log(data);
        /* As expected ,return an object that contains city information
        { 
         country_code: 'US',
         country_code3: 'USA',
         country_name: 'United States',
         region: 'CO',
         city: 'Englewood',
         postal_code: '80112',
         latitude: 39.569000244140625,
         longitude: -104.85820007324219,
         continent_code: 'NA' 
        }
        */
      }
  });              

###Organization

var Org = geoip.Org;
var org = new Org('/path/to/file')  // Org module can open three edition database 'org', 'asnum', 'isp'

Synchronous method:

var org_str = org.lookupSync('8.8.8.8');

console.log(org_str);
/*
  The type of returned data is string, for example:

  'Genuity'
  'AS15169 Google Inc.'

  no longer an object
*/

Asynchronous method:

org.lookup('www.google.com', function(err, data) {
    if (err) {throw err;}
    if (data) {
        console.log(data);
    }
});

###Region

var Region = geoip.Region;
var region = new Region('/path/to/GeoIPRegion.dat');

Synchronous method:

var region_obj = region.lookupSync('8.8.8.8');

console.log('region_obj);
/*
  region object has two properties:
  { country_code: 'US', region: 'CO' }

*/

Asynchronous method:

region.lookup('www.google.com', function(err, data) {
    if (err) {throw err;}
    if (data) {
      console.log(data);
    }
});

###NetSpeed

var NetSpeed = geoip.NetSpeed;
var netspeed = new NetSpeed('/path/to/GeoIPNetSpeed.dat');

Synchronous method:

var netspeed_str = netspeed.lookupSync('8.8.8.8');

console.log(netspeed_str);
/*
  netspeed_str just a simple string, 'Dialup', 'Corprate'... so on
*/

Asynchronous method:

netspeed.lookup('www.google.com', function(err, data) {
    if (err) {throw err;}
    if (data) {
      console.log(data);  // Maybe return 'unknow' or different from lookup method
    }
});