VirtGraphUpdateProtocol Virtuoso SPARQL 1.1 Graph Store HTTP Protocol Support Virtuoso SPARQL 1.1 Graph Store HTTP Protocol Support What? An application protocol for the distributing, updating and fetching of RDF graph content in a Graph Store via the mechanics of the Hypertext Transfer Protocol (HTTP)Why? Simplifies use of HTTP operations on RDF graphs which are managed outside of a SPARQL 1.1 graph store.How? Virtuoso supports /sparql-graph-crud/ Web Service Endpoint that implements the current draft of W3C SPARQL Graph Update protocol. Both /sparql and /sparql-graph-crud/ endpoints use the same SPARQL user account, so this user should be a member of SPARQL_UPDATE group in order to modify data via Graph Update protocol. Note that /sparql/ endpoint has /sparql-auth/ variant that uses web authentication. Similarly, /sparql-graph-crud/ has /sparql-graph-crud-auth/ variant. As soon as user is member of SPARQL_UPDATE group, he/she then can modify the stored data via /sparql-graph-crud-auth/ as well as via /sparql-auth/ . Usage Examples Using sparql-graph-crud and sparql-graph-crud-auth Web Service Endpoints UI cURL examples Related SPARQL 1.1 Graph Store HTTP Protocol Virtuoso SPARQL Authentication