Hello Lars,
The parameter name should be "query=", not "update=" . In addition, the
supported syntax is "original" SPARUL, not SPARQL 1.1 variant, so it's
INSERT DATA IN <graph> { <triples> } .
Best Regards,
Ivan Mikhailov
OpenLink Software
http://virtuoso.openlinksw.com
On Thu, 2011-01-20 at 16:13 +0100, Lars Marius Garshol wrote:
> I'm trying to use the SPARQL Update functionality in Virtuoso, but struggling
> to figure out what the endpoint is. I've tried
>
> http://localhost:8890/sparql/
>
> but that doesn't seem to accept SPARQL Update.
>
> I found a hint in the manual that says:
>
> > If SPARQL_UPDATE role is granted to SPARQL user, then data manipulation
> > statements may be executed via the SPARQL Web service endpoint; if
> > SPARQL_UPDATE role is not granted, users are limited to data querying
> > statements.
>
> I guess that might be the reason.
>
> Here's the actual exchange on the wire:
>
> update=INSERT+DATA+{+GRAPH+<http://example.com/G>+{+<http://example.com/s>+<http://example.com/p>+"o"+}+}
> send: 'POST /sparql/ HTTP/1.1\r\nHost: localhost:8890\r\nAccept-Encoding:
> identity\r\nContent-Length: 105\r\nContent-Type:
> application/x-www-form-urlencoded\r\n\r\n'
> send:
> 'update=INSERT+DATA+{+GRAPH+<http://example.com/G>+{+<http://example.com/s>+<http://example.com/p>+"o"+}+}'
> reply: 'HTTP/1.1 400 Bad Request\r\n'
> header: Server: Virtuoso/06.02.3128 (Mac OS X) universal-apple-macosx10.5-32
> VDB
> header: Connection: Keep-Alive
> header: Date: Thu, 20 Jan 2011 14:52:40 GMT
> header: Accept-Ranges: bytes
> header: Content-Type: text/plain
> header: Content-Length: 61
> 400
> Bad Request
> 22023 Error The request does not contain text of SPARQL query
>
> I guess this is what explains how to set the role:
> http://docs.openlinksw.com/virtuoso/rdfgraphsecurity.html
>
> However, I don't know what user my SPARQL Update statement is running as. And
> I can't see any way to check what users are configured in the system.
>
> Help, please? (This is Virtuoso as installed. I haven't done anything at all
> to change any configuration options.)
>
> --Lars M.
> http://www.garshol.priv.no/tmphoto/
> http://www.garshol.priv.no/blog/
