[Go] Converts structs into map[string]interface{}

structs-to-map.go

package structs

import (
	"encoding/json"
	"reflect"
)

func ConvertToMapViaReflection(s interface{}) map[string]interface{} {
	var m map[string]interface{}

	el := reflect.ValueOf(&s).Elem()
	elType := el.Type()

	for i := 0; i < elType.NumField(); i++ {
		m[elType.Field(i).Name] = el.Field(i).Interface()
	}

	return m
}

func ConvertToMapViaMarshalling(s interface{}) (map[string]interface{}, error) {
	dataBytes, err := json.Marshal(s)
	if err != nil {
		return nil, err
	}

	var m map[string]interface{}
	err = json.Unmarshal(dataBytes, &m)
	if err != nil {
		return nil, err
	}

	return m, nil
}