Some documents about cAPI https://learn.getcapi.org/

To be frank with you, I am not familiar with this cAPI Platform, but this is how to make an ajax call in Easysocial.

You can take a look this delete invited friend request example from user profile page (http://take.ms/RXWud).

1. This is the theme generated that delete option
- JoomlaFolder/components/com_easysocial/themes/wireframe/friends/default/invites.php

2. Added this 'data-es-invitation-delete' data attribute from this delete option

3. When the user click on this delete option, there got a onclick event from the script under this file.
- JoomlaFolder/components/com_easysocial/themes/wireframe/friends/default/invites.js

EasySocial

.require()

.done(function($){



	$('[data-es-invitation-delete]').on('click', function() {

			

		var parent = $(this).closest('[data-item]');

		var id = parent.data('id');

	

		EasySocial.ajax( 'site/controllers/friends/deleteInvites', {

			"id": id

		}).done(function() {

			parent.remove();

		});

	});

});

4. Then it will call this function 'deleteInvites' from this file JoomlaFolder/components/com_easysocial/controllers/friends.php and delete that invited friend data.