rocket.chat.mqtt/node_modules/rocket.chat.proto/lib/index.js

It's a MQTT Server, using redis to scale horizontally.

// import messages, { Typing } from './Message';
import msgpack from 'msgpack-lite';

const encoders = {
	// message: ([msg]) => {
	// 	// const message = { ...msg, u: msg.u._id };
	// 	return messages.Message.encode(message);
	// },
	// typing: (_id, typing) => {
	// 	return messages.Typing.encode({_id, typing});
	// }
};

const decoders = {
	// message: payload => messages.Message.decode(payload),
	// typing: payload => messages.Typing.decode(payload)
};

export const encoder = name => {
	return encoders[name] || msgpack.encode;
};

export const decoder = name => {
	return decoders[name] || msgpack.decode;
};