Public
Edited
Oct 29, 2022
2 stars
viewof big_cities_item = Inputs.table(big_city_media_properties)
viewof heritage_sites_item = Inputs.table(heritage_site_properties)
function query_wikidata(query){
let results_json = fetch(`https://query.wikidata.org/sparql?query=${encodeURIComponent(query)}`, {headers: {accept: "application/sparql-results+json"}}).then(response => response.json())
return results_json
}
function parse_values(results_json) {
return results_json.results.bindings
}
Extract property identifiers and labels
function extract_property_labels(property_values) {
let property_labels = property_values.map(function(d) {
let output = {
Label: d.property.value.replace("http://www.wikidata.org/prop/direct/",""),
Description: d.name.value
};
return output;
})
return property_labels
}
sparql_query = `SELECT ?property ?name WHERE {
?property wikibase:propertyType wikibase:CommonsMedia;
rdfs:label ?name.
FILTER((LANG(?name)) = "en")
}`
property_json = query_wikidata(sparql_query)
property_values = parse_values(property_json)
big_city_sparql_query = `SELECT DISTINCT ?property ?name WHERE {
{
SELECT ?property ?name WHERE {
_:b53 wikibase:propertyType wikibase:CommonsMedia;
rdfs:label ?name;
wikibase:directClaim ?property.
FILTER((LANG(?name)) = "en")
}
}
_:b54 wdt:P31 wd:Q1549591;
?property _:b55.
}`
big_city_media_property_json = query_wikidata(big_city_sparql_query)
big_city_media_property_values = parse_values(big_city_media_property_json)
big_city_media_properties = extract_property_labels(big_city_media_property_values)
heritage_site_sparql_query = `SELECT DISTINCT ?property ?name WHERE {
{
SELECT ?property ?name WHERE {
_:b53 wikibase:propertyType wikibase:CommonsMedia;
rdfs:label ?name;
wikibase:directClaim ?property.
FILTER((LANG(?name)) = "en")
}
}
_:b54 wdt:P31 wd:Q358;
?property _:b55.
}`
heritage_site_json =query_wikidata(heritage_site_sparql_query)
heritage_site_query_values = parse_values(heritage_site_json)
heritage_site_properties = extract_property_labels(heritage_site_query_values)
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
