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Subject Item

n2:sparql

rdf:type

schema:EntryPoint

schema:httpMethod

GET

schema:contentType

text/xml

n3:isWebServiceOf

n4:this_ODSQueryModuleAPI

n3:endPointURL

n5:sparql

schema:shortDescription

<p>Query the Virtuoso triple store with ODS credentials. </p>

n3:hasParameter

n6:_query n6:_format

schema:name

EntryPoint - query_sparql

schema:description

<p>ODS exposes most of its information as linked data through the Virtuoso triple store. All private information is stored in graphs which are protected by Virtuoso's ACL engine. This method allow to query the triple store using any of the supported ODS authentication mechanisms. Other than that it is comparable to Virtuoso's <computeroutput>/sparql</computeroutput> endpoint.</p><p><parameterlist kind="param"><li> <parameternamelist> <parametername>query</parametername> </parameternamelist> <parameterdescription> <p>The actual SPARQL query to be executed. Be aware that query URLs might be cut at a certain max length. So for long query strings it will be better to perform an HTTP POST with the URL-encoded parameters in the body. </p></parameterdescription> </li> <li> <parameternamelist> <parametername>format</parametername> </parameternamelist> <parameterdescription> <p>The result format. This can be any of the Virtuoso supported formats:<itemizedlist> <listitem><p>For SPARQL select binding results:<itemizedlist> <listitem><p><computeroutput>auto</computeroutput> - Automatic selection</p></listitem><listitem><p>HTML - text/html</p></listitem><listitem><p><computeroutput>application/vnd.ms-excel</computeroutput> - Spreadsheet</p></listitem><listitem><p><computeroutput>application/sparql-results+xml</computeroutput> - XML</p></listitem><listitem><p><computeroutput>application/sparql-results+json</computeroutput> - JSON</p></listitem><listitem><p><computeroutput>application/javascript</computeroutput> - Javascript</p></listitem><listitem><p><computeroutput>text/rdf+n3</computeroutput> - N3/Turtle</p></listitem><listitem><p><computeroutput>application/rdf+xml</computeroutput> - RDF/XML</p></listitem><listitem><p><computeroutput>text/plain</computeroutput> - N-Triples</p></listitem><listitem><p><computeroutput>text/csv</computeroutput> - CSV</p></listitem><listitem><p><computeroutput>text/tab-separated-values</computeroutput> - TSV</p></listitem></itemizedlist> </p></listitem><listitem><p>For construct or describe results:<itemizedlist> <listitem><p><computeroutput>text/rdf+n3</computeroutput> - N3/Turtle</p></listitem><listitem><p><computeroutput>application/rdf+json</computeroutput> - RDF/JSON</p></listitem><listitem><p><computeroutput>application/rdf+xml</computeroutput> - RDF/XML</p></listitem><listitem><p><computeroutput>text/plain</computeroutput> - N-Triples</p></listitem><listitem><p><computeroutput>application/xhtml+xml</computeroutput> - XHTML+RDFa</p></listitem><listitem><p><computeroutput>application/atom+xml</computeroutput> - ATOM+XML</p></listitem><listitem><p><computeroutput>application/odata+json</computeroutput> - ODATA/JSON</p></listitem><listitem><p><computeroutput>application/x-json+ld</computeroutput> - JSON-LD</p></listitem><listitem><p><computeroutput>text/x-html+ul</computeroutput> - HTML (list)</p></listitem><listitem><p><computeroutput>text/x-html+tr</computeroutput> - HTML (table)</p></listitem><listitem><p><computeroutput>text/html</computeroutput> - HTML+Microdata</p></listitem><listitem><p><computeroutput>application/microdata+json</computeroutput> - Microdata/JSON</p></listitem><listitem><p><computeroutput>text/csv</computeroutput> - CSV</p></listitem><listitem><p><computeroutput>text/tab-separated-values</computeroutput> Tab-separated values</p></listitem><listitem><p><computeroutput>application/x-trig</computeroutput> - TriG</p></listitem><listitem><p><computeroutput>application/x-nice-turtle</computeroutput> - Pretty-printed Turtle (slow!)</p></listitem></itemizedlist> </p></listitem></itemizedlist> </p></parameterdescription> </li> </ul> <simplesect kind="return"><p>A stream of SPARQL results encoded in the requested format.</p></simplesect> <simplesect kind="par"><title>Authentication</title><p>This function will provide additional information if authentication via one of the supported methods as described in <ref kindref="compound" refid="ods_authentication">ODS Authentication</ref> is used. </p></simplesect> </p>

schema:url

n5:sparql