Does Openlink Virtuoso provide a simple read-only SPARQL query page out of the box?

Question

I'm wondering if Virtuoso has any built in features or packages that would let me expose a simple page where people can enter read-only SPARQL queries?

(sort of like this: http://dbpedia.org/snorql/)

I know if you log into conductor, there is a page to do this, but i'd like to provide a public access page that doesn't require logging in

Answer 1

Virtuoso's built-in, read-only, no-login, default SPARQL query page is found at http://<cname>[:<port>]/sparql -- as at http://dbpedia.org/sparql (a/k/a http://dbpedia.org:80/sparql]). (Note — configuration can be adjusted, such that this default /sparql endpoint is read-write; such adjustment is not the default setup.)

(The http://dbpedia.org/snorql page is specific to the DBpedia deployment; this is not part of the default Virtuoso kit.)

There's a lot of documentation on the various built-in protected pages which themselves may be set up as read-only or read-write. These include --

• http://<cname>[:<port>]/sparql-auth
• http://<cname>[:<port>]/sparql-oauth
• https://<cname>[:<port>]/sparql
• https://<cname>[:<port>]/sparql-webid
• http://<cname>[:<port>]/sparql-graph-crud
• http://<cname>[:<port>]/sparql-graph-crud-auth

Answer 2

Read-Only is the default mode of any SPARQL Query Service endpoint associated with a newly instantiated Virtuoso instance.

If you want Read-Write access e.g., an ability to use SPARQL with Insert, Delete, and Drop (or Clear) Graph operations, you will need to use the "sparql-auth" endpoint or enable Access Controls on the standard endpoint.