Searches city by ip address in local database from maxmind.com.
Use it with rails. For now, I think.
libmaxminddb must be installed.
gem 'geoip2', github: 'da4nik/geoip2'
GeoIP2::file '<local_db_file.mmdb>' # default: GeoLite2-City.mmdb
GeoIP2::locale 'ru' # default: 'ru'
Returns nil if nothing found and raises exception if file not opened or not found
city = GeoIP2::locate(<ip address>, <optional lang>)
city = GeoIP2::locate '77.93.127.33'
=> {"city"=>"Тамбов",
"country"=>"Россия",
"country_code"=>"RU",
"continent"=>"Европа",
"latitude"=>52.731700000000004,
"longitude"=>41.4433}
city = GeoIP2::locate '77.93.127.33', 'en'
=> {"city"=>"Tambov",
"country"=>"Russia",
"country_code"=>"RU",
"continent"=>"Europe",
"latitude"=>52.731700000000004,
"longitude"=>41.4433}