On Tue, Apr 7, 2020 at 8:16 PM Jan-Christoph Klie <
klie(a)ukp.informatik.tu-darmstadt.de> wrote:
Hello,
When we issue queries using the MWAPI [1] programatically, we sometimes
get a 500 error. I would guess that happens in more than 30% of the cases.
The following SPARQL query causes the error:
SELECT DISTINCT *
WHERE {
SERVICE wikibase:mwapi {
bd:serviceParam wikibase:api "EntitySearch" .
bd:serviceParam wikibase:endpoint "www.wikidata.org" .
bd:serviceParam wikibase:limit "once" .
bd:serviceParam mwapi:search "integre" .
bd:serviceParam mwapi:language "en" .
?subj wikibase:apiOutputItem mwapi:item .
}
}
LIMIT 2000
Hi,
unless I'm mistaken you don't seem to need to query this endpoint nor need
SPARQL to search entities in wikidata.
Have you looked at using the wbsearchentities[0] API endpoint. The SPARQL
request you pasted in your message seems to be fulfilled using this API
request:
https://www.wikidata.org/w/api.php?action=wbsearchentities&format=json&…
in
a much more efficient way.
As to why the service is returning timeouts so often this is something we
will be looking into.
0:
https://www.wikidata.org/w/api.php?action=help&modules=wbsearchentities