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github.com/mzimmerman/geoip2-golang
This library reads MaxMind GeoLite2 and GeoIP2 databases.
This library is built using
the Go maxminddb reader.
All data for the database record is decoded using this library. If you only
need several fields, you may get superior performance by using maxminddb's
Lookup
directly with a result struct that only contains the required fields.
(See example_test.go
in the maxminddb repository for an example of this.)
go get github.com/oschwald/geoip2-golang
See GoDoc for documentation and examples.
package main
import (
"fmt"
"github.com/oschwald/geoip2-golang"
"log"
"net"
)
func main() {
db, err := geoip2.Open("GeoIP2-City.mmdb")
if err != nil {
log.Fatal(err)
}
defer db.Close()
// If you are using strings that may be invalid, check that ip is not nil
ip := net.ParseIP("81.2.69.142")
record, err := db.City(ip)
if err != nil {
log.Fatal(err)
}
fmt.Printf("Portuguese (BR) city name: %v\n", record.City.Names["pt-BR"])
fmt.Printf("English subdivision name: %v\n", record.Subdivisions[0].Names["en"])
fmt.Printf("Russian country name: %v\n", record.Country.Names["ru"])
fmt.Printf("ISO country code: %v\n", record.Country.IsoCode)
fmt.Printf("Time zone: %v\n", record.Location.TimeZone)
fmt.Printf("Coordinates: %v, %v\n", record.Location.Latitude, record.Location.Longitude)
// Output:
// Portuguese (BR) city name: Londres
// English subdivision name: England
// Russian country name: Великобритания
// ISO country code: GB
// Time zone: Europe/London
// Coordinates: 51.5142, -0.0931
}
Make sure you checked out test data submodule:
git submodule init
git submodule update
Execute test suite:
go test
Contributions welcome! Please fork the repository and open a pull request with your changes.
This is free software, licensed under the ISC license.
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