Example Go Struct

go_struct.go

package main

import (
	"encoding/json"
	"fmt"
)

type Hobby struct {
	Name string `json:"name"`
}

type Student struct {
	Name  string  `json:"name"`
	Age   int     `json:"age"`
	Hobby []Hobby `json:"hobby"`
}

func main() {
	h := Hobby{}
	h.Name = "swimming"

	s := Student{}
	s.Name = "John toer"
	s.Age = 18
	s.Hobby = []Hobby{h}

	jsonStr, _ := json.Marshal(s)
	fmt.Println(string(jsonStr))
	// result is
	// {"name":"John toer","age":18,"hobby":[{"name":"swimming"}]}
}