package jsonexample

import (
	"encoding/json"
	"fmt"
)

type Person struct {
	Name    string   `json:"name"`
	Age     int      `json:"age"`
	History []string `json:"history"`
}

func JsonParsingExample() {
	obj := map[string]interface{}{
		"name": "홍길동",
		"age":  623,
		"history": []string{
			"1900-양반집을 털었다",
			"1910-왕에게 잡혀감",
		},
	}

	b, err := json.Marshal(obj)
	if err != nil {
		panic(err)
	}

	fmt.Println(string(b))

	obj2 := map[string]interface{}{}
	err = json.Unmarshal(b, &obj2)
	if err != nil {
		panic(err)
	}

	fmt.Println(obj2["age"])

	p := Person{
		Name: "Godopu2",
		Age:  70,
		History: []string{
			"1900-양반집을 털었다",
			"1910-왕에게 잡혀감",
		},
	}
	b, err = json.Marshal(&p)

	if err != nil {
		panic(err)
	}

	fmt.Println(string(b))

	var p2 Person
	err = json.Unmarshal(b, &p2)
	if err != nil {
		panic(err)
	}

	fmt.Println(p2.Age)
}