Wikipedia API - 用于查找类别的生成器查询

Question

下面查询returns维基百科中列为'Good Articles'的文章（为题限制5篇）。

https://en.wikipedia.org/w/api.php?action=query&format=json&list=embeddedin&eititle=Template:Good%20article&eilimit=5

这工作正常，我得到以下结果：

{
"batchcomplete": "",
"continue": {
    "eicontinue": "0|666",
    "continue": "-||"
},
"query": {
    "embeddedin": [
        {
            "pageid": 12,
            "ns": 0,
            "title": "Anarchism"
        },
        {
            "pageid": 307,
            "ns": 0,
            "title": "Abraham Lincoln"
        },
        {
            "pageid": 308,
            "ns": 0,
            "title": "Aristotle"
        },
        {
            "pageid": 339,
            "ns": 0,
            "title": "Ayn Rand"
        },
        {
            "pageid": 627,
            "ns": 0,
            "title": "Agriculture"
        }
    ]
}

现在我想获取与每篇文章相关的类别，所以我尝试使用 'generator' 查询，如下所述：https://www.mediawiki.org/wiki/API:Query#Generators

我已经构建了这个 URL： https://en.wikipedia.org/w/api.php?action=query&generator=embeddedin&geititle=Template:Good%20article&prop=categories

但由于某种原因，类别列表只显示第一个结果。

{
"continue": {
    "clcontinue": "12|Articles_with_unsourced_statements_from_July_2019",
    "continue": "||"
},
"query": {
    "pages": {
        "12": {
            "pageid": 12,
            "ns": 0,
            "title": "Anarchism",
            "categories": [
                {
                    "ns": 14,
                    "title": "Category:All articles lacking reliable references"
                },
                {
                    "ns": 14,
                    "title": "Category:All articles with unsourced statements"
                },
                {
                    "ns": 14,
                    "title": "Category:Anarchism"
                },
                {
                    "ns": 14,
                    "title": "Category:Anti-capitalism"
                },
                {
                    "ns": 14,
                    "title": "Category:Anti-fascism"
                },
                {
                    "ns": 14,
                    "title": "Category:Articles containing French-language text"
                },
                {
                    "ns": 14,
                    "title": "Category:Articles containing Spanish-language text"
                },
                {
                    "ns": 14,
                    "title": "Category:Articles lacking reliable references from March 2019"
                },
                {
                    "ns": 14,
                    "title": "Category:Articles prone to spam from November 2014"
                },
                {
                    "ns": 14,
                    "title": "Category:Articles with short description"
                }
            ]
        },
        "307": {
            "pageid": 307,
            "ns": 0,
            "title": "Abraham Lincoln"
        },
        "308": {
            "pageid": 308,
            "ns": 0,
            "title": "Aristotle"
        },
        "339": {
            "pageid": 339,
            "ns": 0,
            "title": "Ayn Rand"
        },
        "627": {
            "pageid": 627,
            "ns": 0,
            "title": "Agriculture"
        },
        "666": {
            "pageid": 666,
            "ns": 0,
            "title": "Alkali metal"
        },
        "674": {
            "pageid": 674,
            "ns": 0,
            "title": "Anatomy"
        },
        "736": {
            "pageid": 736,
            "ns": 0,
            "title": "Albert Einstein"
        },
        "740": {
            "pageid": 740,
            "ns": 0,
            "title": "Allah"
        },
        "746": {
            "pageid": 746,
            "ns": 0,
            "title": "Azerbaijan"
        }
    }
}

我可以选择对第一个查询的结果使用 foreach 循环来获取所有相关类别，但我会发现从一个查询到 API 获得我需要的信息会更有效，如果可能的话。另外我想知道为什么只显示第一个结果。

感谢您的帮助！

Answer 1

您应该提高类别模块的限制：https://en.wikipedia.org/w/api.php?action=query&generator=embeddedin&geititle=Template:Good%20article&prop=categories&cllimit=max

即使这样也不能完全解决问题，类别太多，无法 return 在一个查询中全部解决。查看 query continuation 的文档了解如何处理（链接到旧版本，因为当前版本似乎没有清楚地解释这个概念）。

Wikipedia API - 用于查找类别的生成器查询

Wikipedia API - Generator query to find categories

php

bots

wikipedia-api

mediawiki-api