i have a project and I'm using socket.io with express ,
so what i need (i tried) is broadcasting a message but from an express action. is this possible i don't know how to get a reference to send or broadcast.
app.get('/', function(req, res) {
//i need to send messages from here
});
Other things like using both express+socket.io is working with me :)
As long as I understand,
Why not use the socket message type as an event instead of a http get or post? On the client side you would send a message via the websocket with let's say an event property.
So in your case:
<script>
// Initialize socket.io ...
// and then
socket.send({event: 'homepage loaded', foo: 'bar'});
</script>
And on the server side:
var io = io.listen(server);
io.on('connection', function (client) {
client.on('message', function (message) {
if (message.event == 'homepage loaded') {
client.broadcast(...);
}
});
});
You might want to have a look at my socket.io + Express primer. What you want is covered in detail there.
// Send to all connected sockets
io.sockets.send('Hello, World!');
// Send to all sockets in a specified room
io.sockets.in('room').send('Hello, Room!');
Where io is the value returned by the call to socketio.listen(). You can place that code anywhere in your application, eg in your app.get callbacks.
Check out my example repo where I use ExpressJS + Juggernaut(pubsub over socket.io):
http://github.com/shripadk/express-juggernaut-demo
This might be overkill for what you need as it uses Publish/Subscribe. But it does, to a certain extent, solve your issue of using regular ExpressJS routes. Checkout the master branch after cloning the repository:
git checkout master
I Found a nice example how to make what i need but with faye it's here http://nodecasts.org/.
I don't know the difference between Juggernaut ,Faye and direct Socket.io but Faye is good
for my case .And i think both of them use Socket.io internally.
