after progress on the question how to create socket.io multicast groups, I found making rooms a great way to do what I needed.
However, it would be great to know about all the rooms, without an extra data-structure.
Is it possible to get a list of all rooms on the server from the server socket?
The short answer:
io.sockets.adapter.rooms
I analysed io
:
I got the following output:
{ server:
{ stack:
[ [Object],
[Object],
[Object],
[Object],
[Object],
[Object] ],
connections: 3,
allowHalfOpen: true,
watcher: { host: [Circular], callback: [Function] },
_events:
{ request: [Function],
connection: [Function: connectionListener],
listening: [Object],
upgrade: [Object] },
httpAllowHalfOpen: false,
cache: {},
settings: { home: '/', env: 'development', hints: true },
redirects: {},
isCallbacks: {},
_locals: { settings: [Object], app: [Circular] },
dynamicViewHelpers: {},
errorHandlers: [],
route: '/',
routes:
{ app: [Circular],
routes: [Object],
params: {},
_params: [],
middleware: [Function] },
router: [Getter],
__usedRouter: true,
type: 'tcp4',
fd: 7 },
namespaces:
{ '':
{ manager: [Circular],
name: '',
sockets: [Object],
auth: false,
flags: [Object],
_events: [Object] } },
sockets:
{ manager: [Circular],
name: '',
sockets: { '210837319844898486': [Object] },
auth: false,
flags: { endpoint: '', exceptions: [] },
_events: { connection: [Function] } },
settings:
{ origins: '*:*',
log: true,
store:
{ options: undefined,
clients: [Object],
manager: [Circular] },
logger: { colors: true, level: 1 },
heartbeats: true,
resource: '/socket.io',
transports:
[ 'websocket',
'htmlfile',
'xhr-polling',
'jsonp-polling' ],
authorization: [Function],
'log level': 1,
'close timeout': 25,
'heartbeat timeout': 15,
'heartbeat interval': 20,
'polling duration': 20,
'flash policy server': true,
'flash policy port': 843,
'destroy upgrade': true,
'browser client': true,
'browser client minification': false,
'browser client etag': false,
'browser client handler': false,
'client store expiration': 15 },
handshaken:
{ '210837319844898486':
{ headers: [Object],
address: [Object],
time: 'Mon Jul 18 2011 00:53:27 GMT+0200 (CEST)',
xdomain: false,
secure: undefined,
PHPSESSID: '7qo6cht3q0rskhfes4eesb2d05' } },
connected: { '210837319844898486': true },
open: { '210837319844898486': true },
closed: {},
closedA: [],
rooms:
{ '': [ '210837319844898486' ],
'/public-alfred': [ '210837319844898486' ] },
roomClients: { '210837319844898486': [ '': true, '/public-alfred': true ] },
oldListeners: [ [Function] ],
_events:
{ 'set:origins': [Function],
'set:flash policy port': [Function],
'set:transports': [Function] } }
after joining room "public-alfred" from a single client io.sockets.adapter.rooms
contained:
{ '': [ '210837319844898486' ],
'/public-alfred': [ '210837319844898486' ] }