I am looking for something like pubsubhubbub that does not depend on google app engine to run.
What I need is a tool that can track for me a big very large number of rss or atom feeds and issue events when they are updated.
+9
A:
pubsubhubbub is a protocol, and, as such, does not depend on app engine. For example, superfeedr is another implementation of this protocol (I believe it's free for the first 1000 feeds, then something like 50 dollars a month for the next 1000 feeds, then decreasing gradually for even larger number of feeds).
Alex Martelli
2009-11-11 16:08:46
thanks, but pubsubhubbub comes with a default implementation, doesn't it? or at least it is a project in google code, so it must be something that can actually be run....
flybywire
2009-11-11 16:26:21
Flybywire : yes there is a default OSS hub you can find on GAE, but it doesn't do polling, which means it will only work for the feeds which are using PubSubHubbub on their end.
Julien Genestoux
2010-08-21 22:40:53
@Julien, right -- pubsubhubbub _is_ "opt-in" at both ends, i.e., both the servers (feeds) and the clients (readers or more typically aggregators) must speak to it. I believe that `superfeedr` obviates this by adding (to the pubsubhubbub protocol itself) a "poll the servers" part for feeds that _don't_ explicitly sign up to give it info in pubsubhubbub ways, but that's just my impression (haven't seen their sources!). The reference implementation (for GAE) _does_ "depend on GAE" (or appscale or typhoonae of course;-), of course, and doesn't poll (does just the pubsubhubbub protocol itself).
Alex Martelli
2010-08-21 23:23:15
@Alex So actually, the default hub (GAE) acts as the protocols specifies : it polls upon pings. The only difference for superfeedr is that we can poll even when there are no pings.
Julien Genestoux
2010-08-22 09:16:36
@Julien, thanks for clarifying the detail! (I don't think of "poll upon ping" as _poll_ -- **polling**, to me, means a stream of periodical unprompted "are we there yet?" questions, while the exchqnge "we're there!" / "where?" is not a _poll_, to my way of thinking, but rather more reminiscent of an observable/observer design pattern;-).
Alex Martelli
2010-08-22 14:56:37