base64String

Golang helper package which automaticly base64 encodes the string when marshalled to JSON and decodes when unmarshalled.

Useful for ensuring data is guaranteed to be encoded when marshalled around.

NOTE: The current implementation only supports JSON encoding (implemented using MarshalJSON and UnmarshalJSON)

Install:

go get github.com/gertd/base64string

Example:

package main

import (
	"encoding/json"
	"fmt"
	"log"

	b64 "github.com/gertd/base64string"
)

type user struct {
	ID    string           `json:"id"`
	Name  b64.Base64String `json:"name"`
	Email b64.Base64String `json:"email"`
}

func main() {

	u := user{
		ID:    "965DE03F-D535-4F26-A1B6-2AAF23BF75BF",
		Name:  b64.Base64String("Milo Hoffman"),
		Email: b64.Base64String("milo.hoffman@antitrust.movie"),
	}

	b, err := json.MarshalIndent(u, "", "  ")
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(string(b))

	var u2 user
	json.Unmarshal(b, &u2)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Printf("raw:   %v\n\n", u2)

	fmt.Printf("name:  %s\n", u2.Name.Get())
	fmt.Printf("email: %s\n", u2.Email.Get())
}

Results:

$ go run example/main.go

{
  "id": "965DE03F-D535-4F26-A1B6-2AAF23BF75BF",
  "name": "TWlsbyBIb2ZmbWFu",
  "email": "bWlsby5ob2ZmbWFuQGFudGl0cnVzdC5tb3ZpZQ=="
}

raw:   {965DE03F-D535-4F26-A1B6-2AAF23BF75BF ******** ********}

name:  Milo Hoffman
email: milo.hoffman@antitrust.movie