Decoding JSON in Golang

main.go

package main

import (
	"fmt"
	"encoding/json"
)

type User struct {
	User UserData `json:"User"`
}

type UserData struct {
	Name         string       `json:"name"`
	Organization Organization `json:"organization"`
}

type Organization struct {
	Name    string        `json:"name"`
	Details []interface{} `json:"details"`
}

func main() {

	// Pretend JSON data
	data := `{"User":{"name":"montanaflynn","organization":{"name":"Mashape","details":[{"a":"b"},2,3]}}}`

	// Using structs
	fmt.Println("JSON to go structs:")
	u := User{}
	json.Unmarshal([]byte(data), &u)
	fmt.Printf("%+v", u)

	fmt.Println("\n\n")

	// Using generic interface
	fmt.Println("JSON to go interface:")
	var y interface{}
	json.Unmarshal([]byte(data), &y)
	fmt.Printf("%+v", y)

}