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PubSubHubbub    
Superfeedr is one of the very first Public PubSubHubbub Hubs. PubSubHubbub (Hubbub) is a simple, open, server-to-server web-hook-based pubsub (publish/subscribe) protocol as an extension to Atom. 
Please, read more about the Core Specifiations.

Hub URL : http://superfeedr.com/hubbub

To interact with the HUB, you need to send authenticated (HTTP Basic Auth) HTTP Post requests, with the following parameters:

Subscribe (Adding a feed):
  • hub.mode : subscribe
  • hub.callback : the url of the callback. Make sure you implement the verification part of the PubSubHubbub Protocol.
  • hub.topic : the feed's url
  • hub.verify : we only support "sync" verification.
  • hub.verify_token : it will be echoed upon subscription verification (optional)
  • hub.lease_seconds : NA, superfeedr subscriptions do not expire.

Unsubscribe (Removing a feed):
  • hub.mode : unsubscribe
  • hub.callback : the url of the callbackMake sure you implement the verification part of the PubSubHubbub Protocol.
  • hub.topic : the feed's url
  • hub.verify : we only support "sync" verification.
  • hub.verify_token :  it will be echoed upon subscription verification (optional)
  • hub.lease_seconds : NA, superfeedr subscriptions do not expire.


Content Distribution (when one of your monitored feeds has new entries):

Superfeedr will send an HTTP POST request to your callback URL. The body of this request will contain an atom feed of the new entries.


Limitations :
- We will not perform any retries if your HTTP callback URL is unavailable.
Version: 
2 messages about this page
Aug 10 2009 by Julien
I updated the PubSubHubbub Implementation notes to reflect the changes
in the API to come http://blog.superfeedr.com/api/pubsubhubbub/xmpp/API-changes/

Click on http://groups.google.com/group/superfeedr/web/pubsubhubbub -
or copy & paste it into your browser's address bar if that doesn't
work.
Jun 17 2009 by Julien
Hey,

I just pushed the first iteration of our implementation of
PubSubHubbub. We want this to replace the previous HTTP Rest API as we
strongly believe in standards. (I think all users of our Rest API have
been warned and are in the process of switching, if it's not your
case, please reach me.)
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