Intégration avec Wikidata

[tfrancart]

Voici l'appel qui est fait depuis l'autocompletion dans l'interface Wikidata:

https://www.wikidata.org/w/api.php?origin=*&action=wbsearchentities&format=json&limit=50&continue=0&language=fr&uselang=fr&search=chat&type=item

On voit aussi passer ca:

https://www.wikidata.org/w/api.php?origin=*&action=wbsearchentities&format=json&limit=50&continue=0&language=fr&uselang=fr&search=P31&type=property

Doc de l'API wbsearhentities: https://www.wikidata.org/w/api.php?action=help&modules=wbsearchentities

Extrait du résultat:

{
  "searchinfo": {
    "search": "chat"
  },
  "search": [
    {
      "id": "Q146",
      "title": "Q146",
      "pageid": 282,
      "repository": "wikidata",
      "url": "//www.wikidata.org/wiki/Q146",
      "concepturi": "http://www.wikidata.org/entity/Q146",
      "label": "chat domestique",
      "description": "espèce de mammifères de la famille des félidés",
      "match": {
        "type": "label",
        "language": "fr",
        "text": "chat domestique"
      }
    },
    {
      "id": "Q58199",
      "title": "Q58199",
      "pageid": 61017,
      "repository": "wikidata",
      "url": "//www.wikidata.org/wiki/Q58199",
      "concepturi": "http://www.wikidata.org/entity/Q58199",
      "label": "messagerie instantanée",
      "description": "type d'échange instantané de messages textuels et de fichiers entre deux personnes",
      "match": {
        "type": "alias",
        "language": "fr",
        "text": "chat"
      },
      "aliases": [
        "chat"
      ]
    },
   ...
  ],
  "search-continue": 50,
  "success": 1
}

[tfrancart]

Voir également l'API query : https://www.mediawiki.org/wiki/API:Prefixsearch Sur la page d'accueil, voici l'API qui est envoyée:

https://www.wikidata.org/w/api.php?action=wbsearchentities&search=chat&format=json&errorformat=plaintext&language=en&uselang=en&type=item

[tfrancart]

The following SPARQL query against wikidata endpoint works fine with autocompletion + class criteria. The drawback is that 50 entities are returned first, and after only the filtering on the type happens. Which can lead to small number of results

SELECT DISTINCT ?person ?personLabel WHERE {
  SERVICE wikibase:mwapi {
      bd:serviceParam wikibase:api "EntitySearch" .
      bd:serviceParam wikibase:endpoint "www.wikidata.org" .
      bd:serviceParam mwapi:search "alb" .
      bd:serviceParam mwapi:language "en" .
      # The maximum limit we can set is 50.
      # bd:serviceParam mwapi:limit "50" .
      ?person wikibase:apiOutputItem mwapi:item .
  }
  ?person wdt:P31/wdt:P279* wd:Q5. 

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }

} ORDER BY ?personLabel

[tfrancart]

There is also the OpenLink Wikidata demo SPARQL endpoint : https://wikidata.demo.openlinksw.com/sparql?default-graph-uri=&query=%0D%0Aselect+%3Fs+%3Fo+%0D%0Awhere+%0D%0A++%7B+%0D%0A++++++graph+%3Fg+%0D%0A++++++%7B+%0D%0A+++++++++%3Fs+rdfs%3Alabel+%3Fo+.%0D%0A+++++++++%3Fo+bif%3Acontains++%27%22Paris%22%27++.%0D%0A+++++++++filter+%28lang%28%3Fo%29+%3D+%22en%22%29%0D%0A++++++++%0D%0A++++++%7D%0D%0A++++%0D%0A++%7D%0D%0A%0D%0Alimit+100+&format=text%2Fhtml&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000&signal_void=on&signal_unconnected=on&run=+Run+Query+