package main

import (
	b64 "encoding/base64"
	"fmt"
)

func main() {
	str := "text123321!?$*&()'-=@~"

	// Encode using the standard encoder
	strEnc := b64.StdEncoding.EncodeToString([]byte(str))
	fmt.Println(strEnc)

	strDec, err := b64.StdEncoding.DecodeString(strEnc)

	if err != nil {
		panic(err)
	}

	fmt.Println(string(strDec))
	fmt.Println()

	// Encode using a URL-compatible base64 format
	strEnc = b64.URLEncoding.EncodeToString([]byte(str))
	fmt.Println(strEnc)

	strDec, err = b64.URLEncoding.DecodeString(strEnc)

	if err != nil {
		panic(err)
	}

	fmt.Println(string(strDec))
}

// $ go run main.go
// dGV4dDEyMzMyMSE/JComKCknLT1Afg==
// text123321!?$*&()'-=@~

// dGV4dDEyMzMyMSE_JComKCknLT1Afg==
// text123321!?$*&()'-=@~