Go and JSON

• The encoding/json go package lets you encode and decode JSON objects.
• The Marshal function lets you encode (convert a struct) to JSON data.
• The Unmarshal function accepts JSON and decodes it into a struct(?) or other go data type.

The examples below are from https://blog.golang.org/json

Marshal Example

package main

import (
	"encoding/json"
	"fmt"
)

// Message comment
type Message struct {
	Name string
	Body string
	Time int64
}

// Marshal example
func main() {
	m := Message{"Kim", "Hello", 1294706395881547000}

	jsonMessage, err := json.Marshal(m)
	if err != nil {
		fmt.Println(err)
	}
	fmt.Println(string(jsonMessage))
}

Unmarshal Example

package main

import (
	"encoding/json"
	"fmt"
)

// Message comment
type Message struct {
	Name string
	Food string
}

// Unmarshal example
func main() {
	b := []byte(`{"Name":"Bob","Food":"Pickle"}`)
	var m Message
	if err := json.Unmarshal(b, &m); err != nil {
		fmt.Println(err)
	}
	fmt.Println(m)
}