package main
import (
"encoding/json"
"log"
"reflect"
"github.com/sanity-io/litter"
)
func main() {
type Item struct {
Id int `json:"id"`
Num int `json:"num"`
}
var itemMap = make(map[int]*Item)
itemMap[1] = &Item{Id:1, Num:100}
data, err := json.Marshal(itemMap)
if err != nil {
log.Println(err.Error())
return
}
targetItem := make(map[int]*Item)
// must pass pointer
// json.Unmarshal(data, targetItem) will no use, just a copy of targetItem..
json.Unmarshal(data, &targetItem)
litter.Dump(targetItem)
litter.Dump(reflect.DeepEqual(targetItem, itemMap))
}
output:
map[int]*main.Item{
1: &main.Item{
Id: 1,
Num: 100,
},
}
true
