Missing Delicious Feeds
I've been playing with using delicious as a lightweight URL database lately, mostly for use by greasemonkey scripts of various kinds (e.g. squatter_redirect).
For this kind of use I really just need a lightweight anonymous http interface to the bookmarks, and delicious provides a number of nice lightweight RSS and JSON feeds suitable for this purpose.
But it turns out the feed I really need isn't currently available. I mostly want to be able to ask, "Give me the set of bookmarks stored for URL X by user Y", or even better, "Give me the set of bookmarks stored for URL X by users Y, Z, and A".
Delicious have a feed for recent bookmarks by URL:
http://feeds.delicious.com/v2/{format}/url/{url md5}
and a feed for all a user's bookmarks:
http://feeds.delicious.com/v2/{format}/{username}
and feeds for a user's bookmarks limited by tag(s):
http://feeds.delicious.com/v2/{format}/{username}/{tag[+tag+...+tag]}
but not one for a user limited by URL, or for URL limited by user.
Neither alternative approach is both feasible and reliable: searching by url will only return the most recent set of N bookmarks; and searching by user and walking the entire (potentially large) set of their bookmarks is just too slow.
So for now I'm having to workaround the problem by adding a special
hostname tag to my bookmarks (e.g. squatter_redirect=www.openfusion.net),
and then using the username+tag feed as a proxy for my username+domain
search.
Any cluesticks out there? Any nice delicious folk want to whip up a shiny new feed for the adoring throngs? :-)