Deprecated. This material represents early efforts and may be of interest to historians. It doe not describe current VIVO efforts.

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Excerpt

Remote applications can perform SPARQL Update calls to add RDF to VIVO, or to remove existing RDF. Since VIVO 1.6.

 

Purpose

Permits external applications to add or remove specific triples from the VIVO data model. These changes use the standard data channels in VIVO, so the search index will be updated as appropriate, and the reasoner will add or remove inferences as needed.

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Code Block
titledelete.sparql
update=DELETE DATA { 
   GRAPH <http://vitro.mannlib.cornell.edu/default/vitro-kb-2> { 
      <http://test.domain/ns#book1> 
          <http://purl.org/dc/elements/1.1/title> 
          "Design Patterns" . 
    } 
}

Big Files

For big files one can also use the SPARQL LOAD command. For this, you have to first create the RDF file with the triples that you want to add make it accessible at a URL that VIVO can access. In the example below, the RDF file containing the triples are the data.rdf (available in the root directory of the web server that respond by the address myserver.address.xxx) and the sparql file below contains the LOAD command to be execute by the SPARQL VIVO API.

Code Block
languagexml
titleimport.sparql
linenumberstrue
update=LOAD <http://myserver.address.xxx/data.rdf> into graph <http://vitro.mannlib.cornell.edu/default/vitro-kb-2>

The command should be the same used in the last examples where USER is a user email authorized to access the SPARQL API (see below) or the email of the root user (created during the install process). The PASSWORD.

Code Block
languagebash
titlecommand
linenumberstrue
curl -d 'email=USER' -d 'password=PASSWORD' -d '@import.sparql' 'http://localhost:8080/vivo/api/sparqlUpdate'

A Python example

Ted Lawless of Brown University has created a Python program to illustrate the SPARQL Update API. You can find it here: https://gist.github.com/lawlesst/6300573#file-vupdate-py

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Code Block
titleauthorizeSparqlUpdate.n3
@prefix auth: <http://vitro.mannlib.cornell.edu/ns/vitro/authorization#> .
@prefix simplePermission: <java:edu.cornell.mannlib.vitro.webapp.auth.permissions.SimplePermission#> .
 
# Authorize the ADMIN role to use the SPARQL Update API
auth:ADMIN auth:hasPermission simplePermission:UseSparqlUpdateApi .

Comment: Actually, this is not 100% true. The root user can always use the SPARQL API and the file [vivo]/rdf/auth/everytime/permission_config.n3 already contains the line above commented. One only need to uncomment this line to enable the API.