Generate Hardware ID in golang

hwid.go

// go get github.com/jaypipes/ghw
// go get github.com/pkg/errors

package main

import (
    	"github.com/jaypipes/ghw"
	"github.com/pkg/errors"
    	"crypto/md5"
	"encoding/hex"
)

func md5Hash(data string) string{
	hash := md5.New()
	hash.Write([]byte(data))
	return hex.EncodeToString(hash.Sum(nil))
}

func GetHardwareID() (string, error){
	info , err := ghw.CPU()
	if err != nil{
		return "", errors.New(err.Error())
	}
	
	bios , err := ghw.BIOS()
	if err != nil{
		return "", errors.New(err.Error())
	} 
	
	base , err := ghw.Baseboard()
	if err != nil{
		return "", errors.New(err.Error())
	} 
	
	Block , err := ghw.Block()
	if err != nil{
		return "", errors.New(err.Error())
	}
	
	data := Block.String() + base.String() + bios.String() + info.String()
	return md5Hash(data) , nil
}