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@jimpick/dat-geoip

v0.0.1

Published

Use hypertrie to look up IP geolocation

Downloads

2

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Readme

@jimpick/dat-geoip

An experiment in using hypertrie to host a peer-to-peer geo ip lookup database.

The data from MaxMind GeoLite2 is loaded into a hypertrie.

Install

npm install -g @jimpick/dat-geoip

Usage

There is a CLI to look up an IP address:

$ dat-geoip 66.6.44.4
{
  "ip": "66.6.44.4",
  "network": "66.6.32.0/20",
  "geonameId": 5128581,
  "registeredCountryGeonameId": 6252001,
  "representedCountryGeonameId": 0,
  "isAnonymousProxy": false,
  "isSatelliteProvider": false,
  "postalCode": "10010",
  "latitude": 40.7391,
  "longitude": -73.9826,
  "accuracyRadius": 1000,
  "localeCode": "en",
  "continentCode": "NA",
  "continentName": "North America",
  "countryIsoCode": "US",
  "countryName": "United States",
  "subdivision1IsoCode": "NY",
  "subdivision1Name": "New York",
  "subdivision2IsoCode": "",
  "subdivision2Name": "",
  "cityName": "New York",
  "metroCode": "501",
  "timeZone": "America/New_York",
  "isInEuropeanUnion": false
}

Limitations

  • Just a demo - the data I am seeding might not stay online forever
  • IPv4 only right now
  • English only
  • Dat key for database is hardcoded
  • No library yet
  • Data is stored as JSON - it would be better to store it in a binary format
  • The lookup strategy is quite naive and not heavily tested. A high performance version would probably build a custom index
  • Uses the free GeoLite2 database. I haven't tried loading the paid GeoIP2 database (it probably would work, but take care to keep the key private to avoid violating license terms)

License

This software is MIT licensed.

The data that gets loaded into it from MaxMind has this license:

This product includes GeoLite2 data created by MaxMind, available from
<a href="http://www.maxmind.com">http://www.maxmind.com</a>.