This product includes GeoLite2 data created by MaxMind, available from http://www.maxmind.com.
import (
"log"
"github.com/samuelngs/geolite2-go"
)
func init() {
db, err := geolite.Bytes("GeoLite2-City.mmdb")
if err != nil {
log.Fatal(err)
}
...
}