package data import "net" type HardwareAddr net.HardwareAddr //MarshalJSON to bytearray func (a HardwareAddr) String() string { return net.HardwareAddr(a).String() } //MarshalJSON to bytearray func (a HardwareAddr) MarshalText() ([]byte, error) { return []byte(a.String()), nil } // UnmarshalJSON from bytearray func (a HardwareAddr) UnmarshalText(data []byte) error { b, err := net.ParseMAC(string(data)) if err != nil { return err } a = HardwareAddr(b) return nil }