Go - Convert unsafe map interface into JSON safe

makeMapJsonSafe.go

import (
	"strconv"
	"reflect"
)

func makeMapJsonSafe(unsafe interface{}) (interface{}) {
	if unsafe != nil && reflect.TypeOf(unsafe).Kind() == reflect.Map {
		if isArray(unsafe.(map[interface{}]interface{})) {
			var jsonSafe = make([]interface{}, len(unsafe.(map[interface{}]interface{})))
			for key, value := range unsafe.(map[interface{}]interface{}) {
				if reflect.TypeOf(key).Kind() == reflect.String {
					index, e := strconv.Atoi(key.(string))
					if e == nil {
						jsonSafe[index] = makeMapJsonSafe(value)
					}
				} else if reflect.TypeOf(key).Kind() == reflect.Int64 {
					jsonSafe[key.(int64)] = makeMapJsonSafe(value)
				}
			}
			return jsonSafe
		} else {
			var jsonSafe = make(map[string]interface{})
			for key, value := range unsafe.(map[interface{}]interface{}) {
				jsonSafe[key.(string)] = makeMapJsonSafe(value)
			}
			return jsonSafe
		}
	} else {
		return unsafe
	}
}

/*
 * Check if the map is actually an array?
 */
func isArray(subject map[interface{}]interface{}) bool {
	for key := range subject {
		if reflect.TypeOf(key).Kind() == reflect.String {
			_, e = strconv.Atoi(key.(string))
			if e != nil {
				return false
			}
		}
	}
	return true
}