JSON export of SPARQL Results Table, with CONSTRUCT

[Dan Segal]

Hello,

I am observing that in EDG 6.4, the JSON export of the SPARQL Results Table is in RDF/XML format when a CONSTRUCT statement is used.

For example, this query produces a results table where the JSON export is in JSON format:

SELECT ?uri ?prefLabel
WHERE {
  ?uri a skos:Concept;
       skos:prefLabel ?prefLabel 
FILTER (str(?prefLabel) = 'test1')
}

However, the results table from the following statement, when exported to Simple JSON, are in RDF/XML.

CONSTRUCT {?uri skos:altLabel "altTest1"}

WHERE {
  ?uri a skos:Concept;
       skos:prefLabel ?prefLabel 
FILTER (str(?prefLabel) = 'test1')
}

This occurs when using the export Simple JSON feature from the SPARQL Results Table.

Is there a way to export the results of CONSTRUCT statements in JSON rather than XML?

Thank you,

Dan

[Holger Knublauch]

Hi Dan,

thanks for reporting this glitch. We will address this with a future update.

Have you tried the export option "Labeled JSON"? This produces sensible JSON to me.

Regards,
Holger

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[Holger Knublauch]

FYI this is now fixed on our master branch for the 7.0 release. I also noticed that we didn't have options to export CONSTRUCT/DESCRIBE results as graphs, so I have added the options to produce JSON-LD, RDF/XML and Turtle too.

Thanks again for exploring these features and getting back to us, Dan.
Holger