how to get JSON from SPARQL endpoint without content negotiation: output=json standard??

• From: Jeremy Carroll <jeremy@topquadrant.com>
• Date: Fri, 09 Mar 2012 16:40:21 -0800
• To: semantic-web@w3.org
• Message-ID: <4F5AA2F5.9040204@topquadrant.com>

I am chasing through the standards trying to understand how to poke a 
SPARQL endpoint to give me JSON in a conformant fashion.

So far I have that I can set my accept headers to ask for 
application/sparql-results+json

I also note that different endpoints also seem to support additional 
query parameters to make this work e.g.

http://dbpedia.org/sparql?query=select%20?book%20where%20{}&output=json
http://dbpedia.org/sparql?query=select%20?book%20where%20{}&format=json

http://data.linkedmdb.org/sparql?query=select%20?book%20where%20{}&output=json

http://lobid.org/sparql/?query=select ?b where {}&output=json

I don't see where this output=json thing is documented ....

thanks

Jeremy

Received on Saturday, 10 March 2012 00:40:43 UTC