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javascriptreactjssparqlwikidata

Get coordinates of a place using Wikidata

I am using Wikidata API to get birth location from famous people, and then displaying the location using Google Maps API. Here is the Wikidata request I use : 

SELECT DISTINCT ?item ?itemLabel ?birthLocation ?birthLocationLabel WHERE {
  ?item (wdt:P31|wdt:P101|wdt:P106)/wdt:P279* wd:Q482980 ;
        rdfs:label "Mary Wollstonecraft"@en ;
        wdt:P19 ?birthLocation
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}

I'm then using a google geocoder to get a lat lng from the birthLocationLabel, and displaying it on the map, however sometimes the geocoder can't find a location (maybe the place doesn't exist anymore), so I'd like to know if it was possible to get coordinates from the wikidata query ? I know birth location has a "coordinate location" property, but I don't know how to access it.

enter image description here

Here is the link of the wikidata query

Solution

  • This works for me ?birthLocation wdt:P625 ?coordinates so the whole query would be:

    SELECT DISTINCT ?item ?itemLabel ?coordinates ?birthLocation ?birthLocationLabel 
WHERE {
  ?item ((wdt:P31|wdt:P101|wdt:P106)/(wdt:P279*)) wd:Q482980;
    rdfs:label "Mary Wollstonecraft"@en;
    wdt:P19 ?birthLocation.
  ?birthLocation wdt:P625 ?coordinates.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}

    This returns:

    [{
    "item": "http://www.wikidata.org/entity/Q101638",
    "itemLabel": "Mary Wollstonecraft",
    "coordinates": "Point(-0.075 51.5166)",
    "birthLocation": "http://www.wikidata.org/entity/Q123219",
    "birthLocationLabel": "Spitalfields"
}]