Wordpress admin ajax.php 400 bad request
Solution 1
If you end up here because you received a 400 error (Bad Request), the reason could be making the AJAX request, when the user is not logged in.
You have to change your code from
wp_ajax_my_action', 'my_action' );
to
wp_ajax_nopriv_my_action', 'my_action' );
Maybe it helps somebody else.
Solution 2
The code registers your Ajax handler, but when you only run it on wp_enqueue_scripts, it's already too late and wp_ajax_nopriv_ hooks are already run.
Know more about Wordpress Ajax:
https://codex.wordpress.org/AJAX_in_Plugins https://developer.wordpress.org/plugins/javascript/ajax/
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Anthony Medina
Estudiante del ultimo año de ingeniería en Informática, administrador de Friki Bloggeo y amante de los idiomas. Defensor a morir de PHP, sobre cualquier otras tecnologías, un poco conservador en este aspecto.
Updated on June 04, 2022Comments
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Anthony Medina almost 2 years
It turns out that I'm making a Wordpress plugin in which I need to make an AJAX to the file "admin_ajax.php" of Wordpress, but when sending the request, the client gives me error 400 (Bad Request) and I do not understand for what reason.
captures
https://i.stack.imgur.com/5SiDd.png
https://i.stack.imgur.com/tPD6o.png
Javascript:
$.post(window.dibibot.ajax_uri, { action: "dibibot_check_message_read", to: (window.dibibot.USER_KEYS.split(":")[1]).toString(), message_id: JSON.stringify(data.message) }, function(response) { console.log(response); });
Ajax php function:
<?php function dibibot_check_message_read() { global $wpdb; $conversation_guid = $_POST['to']; $message_id = json_decode($_POST['message_id'], true); $conversation = $wpdb->get_var("SELECT metadata FROM " . $wpdb->prefix . "dibibot_conversations WHERE guid = '".$conversation_guid."'"); $conversation = maybe_unserialize($conversation); for ($j=0; $j < count($message_id) ; $j++) { for ($i=0; $i < count($conversation); $i++) { if($conversation[$i]['id'] == $message_id[$j]) { $conversation[$i]['status'] = 2; break; } } } $result = $wpdb->update($wpdb->prefix . 'dibibot_conversations', [ "metadata" => maybe_serialize($conversation) ], [ "guid" => $conversation_guid]); echo $result ? 1 : 0; wp_die(); } ?>
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bhv over 2 yearsanother case - ajax action hooks have to write where admin code runs. if hooks added where is_admin is false then it wont works