PuSH Feed Type
Revision as of 15:49, 7 September 2010 by Paulproteus (talk | contribs)
| Contact | Contact::Asheesh Laroia |
|---|---|
| Project | ,|project_name|Project Driver::project_name}} |
| Status | Status::Draft |
The people who run a DiscoverEd instance may wish to be updated nearly-immediately when there are new resources published by a curator.
Right now, DiscoverEd instances aggregate feeds and crawl every once in a while, often manually at the behest of the search engine operator. PubSubHubBub provides a way for the DiscoverEd instance to subscribe feeds and receive automatic, nearly-instantaneous notification of new information in the feed.
This can be built on top of existing Atom/RSS feeds that curators already publish.
This feature was defined and developed during the fun DC meeting thing. (Nathan, did that meeting have a name?)
Requirements
A complete implementation of this specification would provide the following things.
- DiscoverEd can discover a PuSH hub mentioned in a feed.
- DiscoverEd can register itself as a subscriber to that feed on that hub. (To do that, it has to provide a URL on the DiscoverEd instance that, when the feed is updated, the hub should POST to.)
- When the hub pings DiscoverEd to say there is an update to that feed, it re-aggregates data from that feed, does a crawl, and merges the index.
Status
- This draft document has been written. That's all.
- NSDL is interested in trying this with us.
Questions
- Can we make things as simple as this:
- OER Africa adds <link rel="hub"...>
- They do nothing else.
- The chosen hub polls the feed, and when there are updates, pings us.
- Then we get real-time updates with basically no effort from OER Africa.
