package mmdb import "github.com/oschwald/maxminddb-golang" func InstallOverride(override *maxminddb.Reader) { newReader := Reader{Reader: override} switch override.Metadata.DatabaseType { case "sing-geoip": reader.databaseType = typeSing case "Meta-geoip0": reader.databaseType = typeMetaV0 default: reader.databaseType = typeMaxmind } reader = newReader }