Hi, I'm a long term user of twisted with nevow on top mainly using the athena part with LivePage and LiveElement for RPC between Python and JScript. nevow/athena opens up a whole new world of transparently calling from server to browser and vice versa on a permanent connection. With a slight change (three lines) a nevow/athena 'permanent connection' also survives network outages of up to a minute like the ones experienced in mobile 3G networks.
Recently I've combined twisted/nevow with qooxdoo http://www.qooxdoo.org allowing injection/removal of widgets including code into a livepage thus providing not only a 'real app' but a real desktop user experience in a browser. If you want to have a look at some demos please feel free to hit http://nqx.thieprojects.ch minimal nevow/qooxdoo samples http://telinfo.thieprojects.ch Swiss telephone book lookup http://differenzler.thieprojects.ch Minmal Jass cardgame To see code (use Firebug, JScript is not obfuscated) done starting from 2006 till recently. Part of the above mentioned technology was used in a larger card game setup for the Swiss National TV providing a multi player game site with various games of Jass. Currently around 25k games are played by about 70k users a day. http://www.samschtigjass.ch The 'Einzelspieler-Version' can be played without logging in. I've also written experimental stuff bridging XMPP and browser with nevow/athena, using XMPP/pubsub for real time data exchange, though for this I have no public available samples. This is definitely a plug but after four years of working in the field of RIAs it seems to me that nevow/athena is the most advanced of all implementations revolving around 'long polling', permanent connections, websockets and related technologies. It solves a host of problems which you have to tackle when using other technologies. HTH, Werner On 31.03.2010 22:58, sstein...@gmail.com wrote: > > On Mar 31, 2010, at 4:26 PM, Reza Lotun wrote: > >> Hi, >> >>> I am looking for a framework for doing a long polling service where : >>> >>> clients would connect to a soecific 'channel' and wait for a response >>> >>> Where a client admin would push a response only to clients connected to the >>> same channel >> >> There is a project built on top of Twisted that does exactly this, >> called Orbited (http://orbited.org/). It works, and I use it for >> internal real-time stats web pages. The one caveat I have with it is >> that it recently appears to be somewhat inactive - though I use it so >> much I might fork it and continue development ;-) > > It seems to have completely stalled just before the big 0.8 refactoring > effort. > > Have you continued, or do you plan to continue development where it was left > off? > > They all seem to have gone off to play with node.js instead. > >> If you're looking for a scalable, long-polling queue broadcaster *in >> general*, I highly suggest nginx_http_push - an addon module for the >> popular C-based asynchronous web server nginx >> (http://pushmodule.slact.net/). > > Very cool, I hadn't seen that before. > > S > > > _______________________________________________ > Twisted-Python mailing list > Twisted-Python@twistedmatrix.com > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
