Golangでreflectを使ってstructからmapへ変換

struct2map.go

package main

import (
  "fmt"
  "reflect"
)

func StructToMap(data interface{}) map[string]interface{} {
  result := make(map[string]interface{})
  elem := reflect.ValueOf(data).Elem()
  size := elem.NumField()

  for i := 0; i < size; i++ {
    field := elem.Type().Field(i).Name
    value := elem.Field(i).Interface()
    result[field] = value
  }

  return result
}

type Hoge struct {
  Fuga int
  Moge string
}

func main() {
  hoge := Hoge{100, "hello"}
  m := StructToMap(&hoge)

  fmt.Println(m)
}