GeoIP2 Reader for Go
This library reads MaxMind GeoIP2 databases.
Inspired by oschwald/geoip2-golang.
Installation
go get github.com/IncSW/geoip2
Quick Start
import "github.com/IncSW/geoip2"
reader, err := geoip2.NewCityReaderFromFile("path/to/GeoIP2-City.mmdb")
if err != nil {
panic(err)
}
record, err := reader.Lookup(net.ParseIP("81.2.69.142"))
if err != nil {
panic(err)
}
println(record.Continent.Names["zh-CN"]) // 欧洲
println(record.City.Names["pt-BR"]) // Wimbledon
if len(record.Subdivisions) != 0 {
println(record.Subdivisions[0].Names["en"]) // England
}
println(record.Country.Names["ru"]) // Великобритания
println(record.Country.ISOCode) // GB
println(record.Location.TimeZone) // Europe/London
println(record.Country.GeoNameID) // 2635167, https://www.geonames.org/2635167Performance
IncSW/geoip2
city-24 342847 2981 ns/op 2032 B/op 12 allocs/op
city_parallel-24 4477626 269 ns/op 2032 B/op 12 allocs/op
isp-24 3539738 336 ns/op 64 B/op 1 allocs/op
isp_parallel-24 46938070 25.7 ns/op 64 B/op 1 allocs/op
connection_type-24 8759110 133 ns/op 0 B/op 0 allocs/op
connection_type_parallel-24 142261742 8.34 ns/op 0 B/op 0 allocs/op
oschwald/geoip2-golang
city-24 109092 10717 ns/op 2848 B/op 103 allocs/op
city_parallel-24 662510 1718 ns/op 2848 B/op 103 allocs/op
isp-24 1688287 705 ns/op 112 B/op 4 allocs/op
isp_parallel-24 14285560 84.4 ns/op 112 B/op 4 allocs/op
connection_type-24 3883234 305 ns/op 32 B/op 2 allocs/op
connection_type_parallel-24 34284831 32.1 ns/op 32 B/op 2 allocs/op
Supported databases types
Country
- GeoIP2-Country
- GeoLite2-Country
- DBIP-Country
- DBIP-Country-Lite
City
- GeoIP2-City
- GeoLite2-City
- GeoIP2-Enterprise
- DBIP-City-Lite
ISP
- GeoIP2-ISP
ASN
- GeoLite2-ASN
- DBIP-ASN-Lite
- DBIP-ASN-Lite (compat=GeoLite2-ASN)
Connection Type
- GeoIP2-Connection-Type
Anonymous IP
- GeoIP2-Anonymous-IP
Domain
- GeoIP2-Domain