CODEWITHSUNDEEP
javascriptmediawikimediawiki-api
daviegravee
daviegravee

Reputation: 271

Querying MediaWiki API for links on a page does not return all links

I am looking to get the links on this WikiQuote page. I would like to see what subcategories exist under the 'Fundamental' category. They appear as links on the page, so it seemed natural to ask the API for the links. I only get back the "Category schemes" and "Main page" links, which exist in the introduction. What am I doing wrong/what have I misunderstood here?

CODE

function httpGetAsync(theUrl, callback){
    xmlHttp = new XMLHttpRequest();
    xmlHttp.onreadystatechange = function() { 
        if (xmlHttp.readyState == 4 && xmlHttp.status == 200){
            callback(xmlHttp.responseText);
        } 
    }
    xmlHttp.open("GET", theUrl, true); // true for asynchronous
    xmlHttp.send('null');
}

function callback(json_response){
    stuff = json_response;
    console.log(JSON.stringify(JSON.parse(json_response), null, 2));
}

httpGetAsync('http://en.wikiquote.org/w/api.php?action=query&prop=links&titles=Category:Fundamental&origin=*&format=json', callback);

Output

{
  "batchcomplete": "",
  "query": {
    "pages": {
      "4480": {
        "pageid": 4480,
        "ns": 14,
        "title": "Category:Fundamental",
        "links": [
          {
            "ns": 4,
            "title": "Wikiquote:Category schemes"
          },
          {
            "ns": 14,
            "title": "Category:Main page"
          }
        ]
      }
    }
  }
}

Intro links returned, subcategory links are not

Upvotes: 1

Views: 86

Answers (1)

daviegravee
daviegravee

Reputation: 271

Solution

httpGetAsync('https://en.wikiquote.org/w/api.php?&action=query&list=categorymembers&cmtitle=Category:Fundamental&cmtype=subcat&origin=*&format=json', callback);

API documentation for the query used in the solution.

Explanation

This is asking for the first 10 (cmlimit not specified, so it defaults to 10 returned items) subcategories on from the Fundamental category page.

The solution addresses the issue by returning the subcategories I was after, it is not asking for the links. I am not sure why they are not appearing as links but it does get me to the end result I was after anyway.

Credits

Thanks to randelldawson on the FreeCodeCamp forums for this solution.

Upvotes: 1

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