Blog - Anatomy of a Struct (Unmarshaling)

unmarshal_user.go

package main

import (
	"encoding/json"
	"fmt"
)

type User struct {
	FirstName string `json:"firstName"`
	LastName  string `json:"surname"`
	Username  string `json:"username"`
	Age       int    `json:"age"`
}

func main() {
	var user User

	userJson := []byte(`{"firstName": "Lachlan", "surname": "Eagling", "username": "Lachlan_E", "age": 28}`)
	if err := json.Unmarshal(userJson, &user); err != nil {
		fmt.Println(err)
	}
	fmt.Printf("FirstName: %s | LastName: %s | Username: %s, | Age: %d", user.FirstName, user.LastName, user.Username, user.Age)
}