package main

import (
    "encoding/json"
    "fmt"
)

type Test struct {
	Name      string `json:"name"`
	Name2     string `json:"name2"`
	Name3     string `json:"name3,omitempty"`
	Age       int32  `json:"age"`
	NotSer    string `json:"-"`
	Bool      bool   `json:"bool"`
	BoolInStr bool   `json:"bool_in_str,string"`
}

func main() {
	t := Test {
		Name: "hatter",
		Name2: "",
		Name3: "",
		Age: 18,
		NotSer: "not ser!",
		Bool: true,
		BoolInStr: true,
	}
	s, err := json.Marshal(t)
	if err != nil {
		fmt.Println("ERROR: ", err)
		return
	}
	fmt.Println("JSON: ", string(s))
}