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POCalling json function in wordpress
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copied!<p>In my wordpress plugin I need to have a JSON option to load, using jquery, info about a custom post type. This jquery call will come in a page where all users should see it. </p> <p>as far as i understand from the <a href="http://codex.wordpress.org/AJAX_in_Plugins" rel="nofollow">codex</a> I should have a function:</p> <pre><code>function my_json_returning_function(){ // get json objects here echo $json; die(); } </code></pre> <p>As well as the actions:</p> <pre><code>add_action('wp_ajax_my_json_action', 'my_json_returning_function'); add_action('wp_ajax_nopriv_my_json_action', 'my_json_returning_function'); </code></pre> <p>All in my plugin file. </p> <p>then something like:</p> <pre><code>jQuery(document).ready(function($) { var data = { action: 'my_json_action', }; // since 2.8 ajaxurl is always defined in the admin header and points to admin-ajax.php jQuery.post(<?php echo admin_url('admin-ajax.php');?>, data, function(response) { alert('Got this from the server: ' + response); }); }); </code></pre> <p>should call the function in question. </p> <p>My real question is where i should place all the different parts - and if something is missing.</p> <p>The php function and the actions hooks go into the plugin file. But the javascript I am more confused about. I want to put it in the plugin javascript file, but since i have to fetch the admin url using php that becomes a problem. </p> <p>Also how do I make sure that the script is only called if in a certain page? Are there more hooks and filters I should be comfortable with? Or is it possible to load it using wp_enqueue_script when executing a shortcode on that page, or is that to late, as I would seem it needs to be loaded in the header. </p> <p>A lot of questions, but I hope you understand the basis of my problem - I have a hard time placing the code in the right places in the wordpress structure.</p> <p><strong>EDIT:</strong> Calling echo admin_url('admin-ajax.php'); is not, at least in my eyes the most elegant way of doing it. I'd rather have a json API, with its seperate url, and calling it in the ajax call. How would I go about setting up a page in wordpress that only returns a json object?</p>

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