So I'm trying to set up an AJAX action for a plugin I'm building.

When using /wp-admin/admin-ajax.php?action=beacon_podio-get_apps

I was just getting hello world0 and I'm not seeing Request is valid or the Invalid request so it seems like the action is not being called

I think I'm missing something but I'm not sure what I'm missing.

class testClass {

    public function __construct(){
        echo "hello world";
        add_action('wp_ajax_beacon_podio-get_apps', array($this, "get_apps"));

    public function get_apps(){
            $app_id = $_POST['app_id'];
            die("Request is valid");
            die("Invalid request");
new testClass();

I have been reading https://codex.wordpress.org/AJAX_in_Plugins but it's missing the URL I'm supposed to be using.

Output from wordpress

  • @Krzysiek Dróżdż why did you remove the plugin-developer tag this is clearly a plugin development issue? Mar 29 '19 at 15:20

OK, so you misunderstood it a little bit, I guess...

You do the first part correctly. So yes - AJAX requests should be sent to wp-admin/admin-ajax.php and the should have action param set in the request (either as a POST or as a GET).

But then, you do it wrong. You register your action with this code:

add_action('beacon_podio-get_apps', array($this, "get_apps"));

But id should be:

add_action('wp_ajax_beacon_podio-get_apps', array($this, "get_apps"));

or (for anonymous users)

add_action('wp_ajax_nopriv_beacon_podio-get_apps', array($this, "get_apps"));

So just to make it clear - the correct hooks are:

  • wp_ajax_(action)
  • wp_ajax_nopriv_(action)

where (action) is the action that you sent as action parameter.

  • 2
    Also, IIRC, the wp_ajax_nopriv_* actions don't run if the user is signed in, so if you want it to run whether the user is logged in or not, you need to hook to both.
    – Pat J
    Mar 28 '19 at 20:38
  • ok so i have changed it to add_action('wp_ajax_beacon_podio-get_apps', array($this, "get_apps")); and i'm getting the same thing im still not seeing the output with trying ?action=beacon_podio-get_app and ?action=wp_ajax_beacon_podio-get_app Mar 28 '19 at 20:59
  • I have updated question to show the new code and that I'm still getting the same error. Mar 28 '19 at 21:03
  • Thanks for clarifying the URL, but it does mean one of the URL's I was using was correct I am logged in and want it to be for logged in only users. so I'm using the correct one. but it still is not working Mar 28 '19 at 21:10
  • No, it only means that you're ignoring a large part of answer (and original article from Codex)... And sorry, I can't help with that. I've already mentioned it twice. Mar 28 '19 at 21:20

This appeared to be a bug in WordPress, coming back to this and upgrading to version 5.2 the problem seems to have been fixed for some reason the has_action was failing to find the action unsure why but it seems to have been fixed.

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