Call Wikipedia API using jQuery

I decided to directly use the data from Wikipedia. Many pages contain a structured “Infobox” that I will use to gather information I need.

There is a Wikipedia API (more precisely, MediaWiki, the engine of Wikipedia, has an API). I invite you to read the documentation.

Here are some examples of what can be done using the javascript library jQuery:

  • get the source of a page (API doc):
    $.getJSON("", {titles:pageName, prop: "revisions", rvprop:"content"}, wikipediaPageResult);
  • get the image names of a page (API doc):
    $.getJSON("", {titles:pageName, prop: "images"}, wikipediaImageResult
  • get the HTML formatted content of a page (API doc) (does not follow redirects)
    $.getJSON("", {page:pageName, prop:"text"}, wikipediaHTMLResult);

It is important to note the needed “&callback=?” in the query (it will tell jQuery to use JSONP, a way to do cross-site javascript call), thanks to stackoverflow for this tip.

Note that to get the HTML content of a wiki page using javascript from the browser, I cannot use the “action=render” parameter of index.php because of the Same Origin Policy. I had to use the API to do it client side. I think I will rewrite my system to do this call server-side.

In the end, check my gist on github to get the full code of how to import a Wikipedia Page in javascript.

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