API:Allcategories

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Versión de MediaWiki: 1.12

Solicitud GET para enumerar todas las categorías que se ajustan a ciertos criterios relacionados con sus títulos.

Este módulo puede ser utilizado como generator .

Documentación de API


list=allcategories (ac)

(main | query | allcategories)
  • This module requires read rights.
  • This module can be used as a generator.
  • Source: MediaWiki
  • License: GPL-2.0-or-later

Enumerate all categories.

Parameters:
acfrom

The category to start enumerating from.

accontinue

When more results are available, use this to continue.

acto

The category to stop enumerating at.

acprefix

Search for all category titles that begin with this value.

acdir

Direction to sort in.

One of the following values: ascending, descending
Default: ascending
acmin

Only return categories with at least this many members.

Type: integer
acmax

Only return categories with at most this many members.

Type: integer
aclimit

How many categories to return.

Type: integer or max
The value must be between 1 and 500.
Default: 10
acprop

Which properties to get:

size
Adds number of pages in the category.
hidden
Tags categories that are hidden with __HIDDENCAT__.
Values (separate with | or alternative): hidden, size
Default: (empty)
Examples:
List categories with information on the number of pages in each.
api.php?action=query&list=allcategories&acprop=size [open in sandbox]
Retrieve info about the category page itself for categories beginning List.
api.php?action=query&generator=allcategories&gacprefix=List&prop=info [open in sandbox]

Ejemplo

Solicitud GET

Consigue una lista de todas las categorías, comenzando desde "15th-century caliphs".

Respuesta

{
    {
    "batchcomplete": "",
    "continue": {
        "accontinue": "15th-century_churches_in_Denmark",
        "continue": "-||"
    },
    "query": {
        "allcategories": [
            {
                "*": "15th-century caliphs"
            },
            {
                "*": "15th-century calligraphers"
            },
            {
                "*": "15th-century card games"
            },
            ...
        ]
    }
}

Código de ejemplo

Python

#!/usr/bin/python3

"""
    get_allcategories.py

    MediaWiki API Demos
    Demo of `Allcategories` module: Get all categories, starting from a
    certain point, as ordered by category title.

    MIT License
"""

import requests

S = requests.Session()

URL = "https://en.wikipedia.org/w/api.php"

PARAMS = {
    "action": "query",
    "format": "json",
    "list": "allcategories",
    "acfrom": "15th-century caliphs"
}

R = S.get(url=URL, params=PARAMS)
DATA = R.json()

CATEGORIES = DATA["query"]["allcategories"]

for cat in CATEGORIES:
    print(cat["*"])

PHP

<?php
/*
    get_allcategories.php

    MediaWiki API Demos
    Demo of `Allcategories` module: Get all categories, starting from a certian point, as ordered by category title.

    MIT License
*/

$endPoint = "https://en.wikipedia.org/w/api.php";
$params = [
    "action" => "query",
    "format" => "json",
    "list" => "allcategories",
    "acfrom" => "15th-century caliphs"
];

$url = $endPoint . "?" . http_build_query( $params );

$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
$output = curl_exec( $ch );
curl_close( $ch );

$result = json_decode( $output, true );

foreach( $result["query"]["allcategories"] as $k => $v ) {
    echo( $v["*"] . "\n" );
}

JavaScript

/*
    get_allcategories.js

    MediaWiki API Demos
    Demo of `Allcategories` module: Get all categories, starting from a certain point, as ordered by category title.

    MIT License
*/

var url = "https://en.wikipedia.org/w/api.php"; 

var params = {
    action: "query",
    format: "json",
    list: "allcategories",
    acfrom: "15th-century caliphs"
};

url = url + "?origin=*";
Object.keys(params).forEach(function(key){url += "&" + key + "=" + params[key];});

fetch(url)
    .then(function(response){return response.json();})
    .then(function(response) {
        var categories = response.query.allcategories;
        for (var cat in categories) {
            console.log(categories[cat]["*"]);
        }
    })
    .catch(function(error){console.log(error);});

MediaWiki JS

/*
	get_allcategories.js

	MediaWiki API Demos
	Demo of `Allcategories` module: Get all categories,
	starting from a certian point, as ordered by category title.

	MIT License
*/

var params = {
		action: 'query',
		format: 'json',
		list: 'allcategories',
		acfrom: '15th-century caliphs'
	},
	api = new mw.Api();

api.get( params ).done( function ( data ) {
	var categories = data.query.allcategories,
		cat;
	for ( cat in categories ) {
		console.log( categories[ cat ][ '*' ] );
	}
} );

Documentos adicionales

  • Este módulo difiere de list=allpages&alnamespace=14 en que las categorías sin descripciones serán listadas, mientras que las redirecciones y las páginas donde nunca se usó la categoría no lo serán.
  • La respuesta puede incluir categorías que se utilizaron anteriormente pero desde entonces se han eliminado.
  • Debido a que la respuesta puede incluir categorías que son eliminadas o de otra manera vacías, se recomienda filtrar la lista usando acmin=1, para devolver solo las categorías que contengan uno o más miembros.

Véase también