Dujudu

A wikidata-backed browser for food & ingredients.

Querying Wikidata

Extensive tutorial on wikidata SPARQL API https://www.wikidata.org/wiki/Wikidata:SPARQL_tutorial

Slightly adjusted "cat" example, with filter for wd:Q25403900 - "Food ingredient" https://www.wikidata.org/wiki/Q25403900

#Ingredients
SELECT ?item ?itemLabel
WHERE
{
  ?item wdt:P31 wd:Q25403900.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}

As noted in the interfacing guide of the wikidata sparql guide, the api can be queried via GET to https://query.wikidata.org/sparql?query={SPARQL}, while the response format defaults to XML but can be set to JSON with a respective header Accept: application/sparql-results+json