Re: Lucky SPARQL

PS. A better name might be "Optimistic SPARQL" (and it should probably
return a 404 if the query doesn't return a suitable pattern).

On 29 March 2012 14:18, Danny Ayers <danny.ayers@gmail.com> wrote:
> A proposed mini-convention for giving SPARQL endpoints an "I'm Feeling
> Lucky" option and hence supporting things like WebFinger.
>
> Take a query like:
>
> SELECT DISTINCT ?blog WHERE {
>   ?person foaf:name "James Snell" .
>   ?person foaf:weblog ?blog .
> }
> LIMIT 1
>
> If I'm asking something like that, then what I'm probably trying to
> achieve is to get to James' blog. But if use that on an endpoint, what
> I'll get back is a bunch of XML (or JSON), from which I'll have to
> parse out the URI, then fire off another GET. So what about having the
> endpoint server support an additional parameter, something like:
>
> http://example.org/sparql?query=SELECT+DISTINCT+... &action=redirect
>
> which would tell the server to pull out the URI in the results, and return:
>
> HTTP/1.1 302 Found
> Location: http://chmod777self.blogspot.com
>
> - thus taking me straight to my actual target.
>
> I've had James Snell's proposal [1] for simplifying WebFinger [2]
> simmering away in the back of my mind. I'm unconvinced by the
> architectural style of what he suggests (Gopher?), but he does get
> bonus points for creativity. (See also James' response on that [3]).
> In the query above I've used foaf:name which is likely to give
> ambiguous results. But if it was foaf:mbox_sha1sum instead, you've got
> a mechanism for WebFinger with James' optimization. Ok, the request
> URI is a bit cumbersome, but templating a short version for special
> cases like WebFinger would be easy enough.
>
> (Blogged at [4] and fired off to all the social nets, but then it
> occurred to me that most of the potential implementers will be around
> here :)
>
> Cheers,
> Danny.
>
> [1] http://chmod777self.blogspot.com/2012/03/thoughts-on-webfinger.html
> [2] http://www.ietf.org/id/draft-jones-appsawg-webfinger-01.txt
> [3] https://plus.google.com/112609322932428633493/posts/WvedRayrYEn
> [4] http://dannyayers.com/2012/03/29/Lucky-SPARQL
>
> --
> http://dannyayers.com
>
> http://webbeep.it  - text to tones and back again



-- 
http://dannyayers.com

http://webbeep.it  - text to tones and back again

Received on Thursday, 29 March 2012 13:59:41 UTC