If no other choice, I will do some rewriting. I'll inspect for examples of POST here: http://www.mediawiki.org/wiki/Category:API_extensions

It couldn't be more simple I'm afraid. Replace "get" with "post". Note that both of these are just shortcuts to the more advanced "$.ajax" method, so if the reduced set of options exposed in get() and post() isn't enough, just call ajax() directly. https://api.jquery.com/jQuery.get/ https://api.jquery.com/jQuery.post/ https://api.jquery.com/jQuery.ajax/ — Krinkle PS: Please use the Promise interface, not the callback parameters. Don't forget to handle errors, either. PS2: While this will help you get the request over POST, the underlying subsystem you're communicating with (action=ajax) has been deprecated for many years now. Please rewrite these global functions in a more modular fashion by creating an API module. https://www.mediawiki.org/wiki/API:Main_page On 3 Sep 2014, at 17:42, Toni Hermoso Pulido &lt;toniher(a)cau.cat <mailto:toniher@cau.cat>> wrote: > Hello, > > for different custom extensions I've been doing something like this with > GET: > > $.get( mw.util.wikiScript(), { > format: 'json', > action: 'ajax', > rs: 'MyExt::MyFunction', > rsargs: [param1, param2] > }, function(data) { > // console.log(data); > }); > > MyExt::MyFunction is in $wgAjaxExportList[]. > > However, since now I have too much data for a URL (414 HTTP error) I'd > prefer to use POST. So far I have not found a proper way to build it. > Any idea or advice? >