node-dbus

D-bus protocol client and server for node.js

Installation

npm install dbus-native

git clone https://github.com/sidorares/node-dbus # clone the repo
cd node-dbus
npm install # install dependencies
sudo cp examples/com.github.sidorares.dbus.Example.conf /etc/dbus-1/system.d/ # if you want to test examples/service.js

Usage

Short example using desktop notifications service

var dbus = require('dbus-native');
var sessionBus = dbus.sessionBus();
sessionBus.getService('org.freedesktop.Notifications').getInterface(
    '/org/freedesktop/Notifications',
    'org.freedesktop.Notifications', function(err, notifications) {

    // dbus signals are EventEmitter events
    notifications.on('ActionInvoked', function() {
        console.log('ActionInvoked', arguments);
    });
    notifications.on('NotificationClosed', function() {
        console.log('NotificationClosed', arguments);
    });
    notifications.Notify('exampl', 0, '', 'summary 3', 'new message text', ['xxx yyy', 'test2', 'test3', 'test4'], [],  5, function(err, id) {
       //setTimeout(function() { n.CloseNotification(id, console.log); }, 4000);
    });
});

API

Low level messaging: bus connection

connection = dbus.createClient(options)

options:

socket - unix socket path
port - TCP port
host - TCP host
busAddress - encoded bus address. Default is DBUS_SESSION_BUS_ADDRESS environment variable. See http://dbus.freedesktop.org/doc/dbus-specification.html#addresses
( TODO: add/document option to use adress from X11 session )

connection has only one method, message(msg)

message fields:

type - methodCall, methodReturn, error or signal
path - object path
interface
destination
sender
member
serial
signature
body
errorName
replySerial

connection signals:

connect - emitted after successful authentication
message
error

example:

var dbus = require('dbus-native');
var conn = dbus.createConnection();
conn.message({
    path:'/org/freedesktop/DBus',
    destination: 'org.freedesktop.DBus',
    'interface': 'org.freedesktop.DBus',
    member: 'Hello',
    type: dbus.messageType.methodCall
});
conn.on('message', function(msg) { console.log(msg); });

linux4kix/node-dbus

node-dbus

Installation

Usage

API

Low level messaging: bus connection

Links