example of JSON encoding

json_encoding.go

package main

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

const appVersion string = "v1"

type bodyParams struct {
	AppVersion string `json:"app_version"`
}

func main() {
	newBody := bodyParams{AppVersion: appVersion}
	bodyJSON, err := json.Marshal(newBody)
	if err != nil {
		panic(err)
	}
	encodedJSON := base64.StdEncoding.EncodeToString(bodyJSON)
	fmt.Println("encoded JSON is", encodedJSON)
	decodedJSON, err := base64.StdEncoding.DecodeString(encodedJSON)
	if err != nil {
		panic(err)
	}
	body := &bodyParams{}
	err = json.Unmarshal(decodedJSON, body)
	if err != nil {
		panic(err)
	}
	fmt.Println("decoded JSON is", *body)
}