codec encode / decode sample

codec_sample.go

package main

import (
	"fmt"
	"reflect"

	"github.com/ugorji/go/codec"
)

type Data map[string]interface{}


func (d *Data) toMsgpack() ([]byte, error) {
	var buffer []byte
    var handler codec.MsgpackHandler
    handler.MapType = reflect.TypeOf(map[string]interface{}(nil))

	if err := codec.NewEncoder(&buffer, &handler).Encode(d); err != nil {
		return nil, err
	}
	return buffer, nil
}

func (d *Data) toJson() ([]byte, error) {
	var buffer []byte
	var handler codec.JsonHandler

	if err := codec.NewEncoder(&buffer, &handler).Encode(d); err != nil {
		return nil, err
	}
	return buffer, nil
}

func loadMsgpack(data []byte) (*Data, error) {
	var d Data
	var handler codec.MsgpackHandler
	handler.MapType = reflect.TypeOf(map[string]interface{}(nil))

	if err := codec.NewDecoder(&data, &handler).Decode(&d); err != nil {
		return nil, err
	}
	return &d, nil
}

func loadJson(data []byte) (Data, error) {
	var d Data
	var handler codec.JsonHandler

	if err := codec.NewDecoder(&data, &handler).Decode(&d); err != nil {
		return nil, err
	}
	return &d, nil
}