[Twisted-Python] server push data to client

[lasizoillo]

2009/11/17  <vitaly at synapticvision.com>:
> hi,
> what could be the way(Producer/Consumer?) and simple,basic example to
> push data(~10Kb) from Twisted based server(that listening for incoming
> requests) into  client side(for example FLEX) not as a response to the
> incoming request, but occasionally, triggered by server side???
>
> In traditional client/server arch, the server is listening, accepting
> and responding to the client's requests, but here I'm looking for
> something that initiated from server itself and pushing data to client.
>

In HTTP, the client can't open server sockets. The workaround is poll
to the server or open a persistent connection to the server. Some
clients can't open server sockets (they are behind a firewall) and you
need make the same tricks.

Orbited is a comet (server push) framework based on Twisted.
http://orbited.org/

Cometd (the twisted version) can be another example:
http://svn.cometd.com/trunk/cometd-twisted/
http://cometdproject.dojotoolkit.org/

Regards,
Javi