mosca/examples/rule_engine/broker.js

MQTT broker as a module

var mosca = require("../../");

var moscaSettings = {
  port: 1883,
  persistence: mosca.persistence.Memory
};

var server = new mosca.Server(moscaSettings, function() {
  console.log('Mosca server is up and running')
});

server.published = function(packet, client, cb) {
  if (packet.topic.indexOf('echo') === 0) {
    return cb();
  }

  var newPacket = {
    topic: 'echo/' + packet.topic,
    payload: packet.payload,
    retain: packet.retain,
    qos: packet.qos
  };

  server.publish(newPacket, cb);
}