Codec prototype for serializing messages in: json, msgpack or msgpack-js.

msg-codec-serialize.js

// require these modules: 'msgpack' (binding), 'msgpack-js' (pure javascript), JSON node.js built in function.


// config
var config = [];
config["messenger_codec"] = 'json';       // json, msgpack, msgpack-js


 // codec for messenger to use: json, msgpack, msgpack-js.
var Codec = function() { };
if ( config["messenger_codec"] === 'msgpack' ) {
	var msgpack = require('msgpack');
	Codec.prototype.encode = function(m) { return msgpack.pack(m); };	
	Codec.prototype.decode = function(m) { return msgpack.unpack(m); };
} else if ( config["messenger_codec"] === 'msgpack-js' ) {
	var msgpack = require('msgpack-js');
	Codec.prototype.encode = function(m) { return msgpack.encode(m); };	
	Codec.prototype.decode = function(m) { return msgpack.decode(m); };
} else {
	// json
	Codec.prototype.encode = function(m) { return JSON.stringify(m); };	
	Codec.prototype.decode = function(m) { return JSON.parse(m); };	
	
}


// to use
var codec = new Codec();	         // use: codec.encode(message), codec.decode(message).

var mcodexEncode = codec.encode(msg);    // encode message

var mcodexDecode = codec.decode(msg);    // decode message