Testing errors for API in golang

errors_struct.go

package main

import (
	"encoding/json"
	"fmt"
)

type Person struct {
	Name   string
	Errors map[string][]string `json:"-"`
}

func main() {
	p := Person{"", map[string][]string{}}

	// simulating the p.Validate() where the Errors array should be filled
	p.Errors["name"] = append(p.Errors["name"], "blank")
	p.Errors["name"] = append(p.Errors["name"], "invalid") 
	
	j, _ := json.Marshal(p)
	e, _ := json.Marshal(p.Errors)

	fmt.Println("resource:", string(j), ", errors:", string(e))
}
// => resource: {"Name":""} , errors: {"name":["blank","invalid"]}