Supports:

• Primitives, arrays, maps, structs, time.Time and interface{}.
• Appengine *datastore.Key and datastore.Cursor.
• CustomEncoder/CustomDecoder interfaces for custom encoding.
• Extensions to encode type information.
• Fields renaming, e.g. msgpack:"my_field_name".
• Fields inlining, e.g. msgpack:",inline".
• Omitempty flag, e.g. msgpack:",omitempty".

API docs: http://godoc.org/gopkg.in/vmihailenco/msgpack.v2. Examples: http://godoc.org/gopkg.in/vmihailenco/msgpack.v2#pkg-examples.

Install:

go get gopkg.in/vmihailenco/msgpack.v2

func ExampleMarshal() {
	b, err := msgpack.Marshal(true)
	if err != nil {
		panic(err)
	}
	fmt.Printf("%#v\n", b)
	// Output:

	var out bool
	err = msgpack.Unmarshal([]byte{0xc3}, &out)
	if err != nil {
		panic(err)
	}
	fmt.Println(out)
	// Output: []byte{0xc3}
	// true
}

Please go through examples to get an idea how to use this package.