Reverse ajax call with javascript server initiative

[raknin]

Hi,

I am looking for a mechanisim (Actualy already written packege) in which each time an event occure in the server the client browser will be announce without the need to poll the server every T second. This will reduce the server load. If anyone can recomemd about such exist package.

Thanks
Ronen

[gits]

hi ...

in case you are talking about webpages that are served through HTTP ... i think there is no possibility to do that ... since you cannot use persistent connections or just push something to the client with that technology ...

kind regards

PS: the term 'reverse ajax' seems to mislead the people ... it uses tricks for that ... the best method would be the 'piggy backing' one ... just send all updated data when the client requests something ... even when its unrelated to the actual request ... of course your page needs to handle that :)

[raknin]

Hi,

This is what I thought. but I was not sure.

Thanks
ronen

[rnd me]

you can actually.

check out Comet

[acoder]

Comet is rather hack-ish at the moment because the current browsers features weren't intended for that use. Until it's standardized and supported in future browsers, we're stuck with what is effectively polling.