Elixir library for accessing ISO3166-1 (country) and ISO3166-2 (subdivision) data as well as geoname data for cities. Source data comes from the upstream debian iso-codes package and the Geonames project.
The data for countries comes primarily from the debian iso-codes package. The data file for that is stored in priv/iso_3166-1.json. We do
manually add some data that is missing from upstream. Overrides can be found in priv/override/iso_3166-1.json
The data for subdivisions comes primarily from the debian iso-codes package. The data file for that is stored in priv/iso_3166-2.json. The subdivision names in this file are mostly in local language (i.e. Wien instead of Vienna). English translations are obtained from CLDR and Wikipedia. The translations found in priv/iso_3166-2.en-translations.json are used when available instead of the original name.
The data for cities comes from the geonames project. This project has scripts to download the main allCountries.txt file. It is then processed to make it smaller
(from 1.3GB to about 130MB). Still, the resulting file is quite large so we also provide a city database based on the smaller cities500.txt file.