Fetch famous people from Wikipedia API - ajax

Question

I'm trying to fetch people who are still alive from Wikipedia API but I haven't figured out how to do it.
I found this question which is the same as mine and as far as I understood the only way is to search for people who only have the birth_date parameter, how do I actually do that?
For instance, if I wanted to search for "Ronaldo", I should get a list of all people called Ronaldo who are still alive. The only data I care about are date of birth, name and surname, and eventually date of death if they die.
The only thing I came up with is this:
https://en.wikipedia.org/w/api.php?action=opensearch&search=%22Ronaldo%22&format=json
But it doesn't do the job that I'd like it to do because it only gets the biography and link.

Answer 1

You can execute the following query here: https://query.wikidata.org/ in order to fetch the details you are interested in.
SELECT DISTINCT ?id ?idLabel (SAMPLE(?birth) as ?birth_date)
(SAMPLE(?death_date) as ?dateOfDeath) WHERE {
?id wdt:P31 wd:Q5.
?id wdt:P569 ?birth .
OPTIONAL{?id wdt:P570 ?death_date .}
SERVICE wikibase:label {
bd:serviceParam wikibase:language "en".
?id rdfs:label ?idLabel .
}?id ?label "Ronaldo"#en.
}
GROUP BY ?id ?idLabel

Answer 2

Please look at the following query:
SELECT distinct ?item ?itemLabel ?itemDescription (SAMPLE(?DR) as ?DR) (SAMPLE(?RIP) as ?RIP) (SAMPLE(?image)as ?image) (SAMPLE(?article)as ?article) WHERE {
?item wdt:P31 wd:Q5.
?item ?label "Ronaldo"#en.
?article schema:about ?item .
?article schema:inLanguage "en" .
?article schema:isPartOf <https://en.wikipedia.org/>.
OPTIONAL{?item wdt:P569 ?DR .} # P569 : Date of birth
OPTIONAL{?item wdt:P570 ?RIP .} # P570 : Date of death
OPTIONAL{?item wdt:P18 ?image .} # P18 : image
SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
GROUP BY ?item ?itemLabel ?itemDescription
Query on Wikidata.
You can add Filter on death date to see only alive people.

Answer 3

Use the structured data query service. The generic API does not provide much in the way of filtering.