I'm currently storing RDF Data into the Virtuoso using HTTP-GET/POST via SPARQL-Endpoint. But that's kind of a lack of security to always 'GRANT PERMISSION' to 'SPARQL' for INSERT/DELETE graph content and revoking it afterwards. So, my question: Is there a more secure way to use INSERT or DELETE in a SPARQL query? I know that using Jena you don't have this issue but I'd like to avoid Java.
Thanks in advance! :)