IP lookup using Maxmind databases
npm install @cond/maxmindnode-maxmind 
========
Pure Javascript module for Geo IP lookup using Maxmind binary databases (aka mmdb or geoip2).
Fastest Maxmind lookup library available - up to 17,000% faster than other libraries. Module has 100% test coverage with comprehensive test suite. It natively works with binary Maxmind database format and doesn't require any "CSV - {specific lib format}" conversions as some other modules do. Maxmind binary databases are highly optimized for size and performance so there's no point working with other than that format.
You might want to use geolite2 module with free geo databases. Alternatively, free databases available for download here. If you need better accuracy you should consider buying commercial subscription.
``shell`
npm i maxmind
`javascript
var maxmind = require('maxmind');
maxmind.open('/path/to/GeoLite2-City.mmdb', (err, cityLookup) => {
var city = cityLookup.get('66.6.44.4');
});
maxmind.open('/path/to/GeoOrg.mmdb', (err, orgLookup) => {
var city = orgLookup.get('66.6.44.4');
});
// Be careful with sync version! Since mmdb files
// are quite large (city database is about 100Mb)
// fs.readFileSync blocks whole process while it
// reads file into buffer.
var cityLookup = maxmind.openSync('/path/to/GeoLite2-City.mmdb');
var city = cityLookup.get('66.6.44.4');
var orgLookup = maxmind.openSync('/path/to/GeoOrg.mmdb');
var organization = orgLookup.get('66.6.44.4');
`
Module is fully compatible with IPv6. There are no differences in API between IPv4 and IPv6.
`javascript`
var lookup = maxmind.openSync('/path/to/GeoLite2.mmdb');
var location = lookup.get('2001:4860:0:1001::3004:ef68');
`javascript`
var lookup = maxmind.openSync('/path/to/GeoLite2.mmdb', {
cache: {
max: 500, // Max items in cache, by default it's 6000
}
});
lookup.get('1.1.1.1');$3
Supports reloading the reader when changes occur to the database that is loaded. (default ). Only supported by Node v0.5.10+.`javascript`
var lookup = maxmind.openSync('/path/to/GeoLite2.mmdb', { watchForUpdates: true });
lookup.get('1.1.1.1');
Module supports validation for both IPv4 and IPv6:
`javascript
maxmind.validate('66.6.44.4'); // returns true
maxmind.validate('66.6.44.boom!'); // returns false
maxmind.validate('2001:4860:0:1001::3004:ef68'); // returns true
maxmind.validate('2001:4860:0:1001::3004:boom!'); // returns false
``
In case you want to use legacy GeoIP binary databases you should use maxmind@0.6.
MIT