CODEWITHSUNDEEP
ajaxwordpress
drake035
drake035

Reputation: 2887

'Bad request' (400) error with WordPress Ajax

I don't understand why I get a 400 'bad request' error with the Ajax code below. I don't get any Apache error btw:

PHP (functions.php)

function load_scripts() {
  wp_enqueue_script('jquery');  
  wp_enqueue_script('main_js', get_stylesheet_directory_uri() . '/dist/scripts/main.js', array('jquery'), true);
  wp_localize_script('main_js', 'WPaAjax', array('ajaxurl' => admin_url('admin-ajax.php')));
}
add_action('wp_enqueue_scripts', 'load_scripts');

function send_message_function() {
  echo 'YES!';
  exit;
}

add_action('wp_ajax_send_message', 'send_message_function');
add_action('wp_ajax_nopriv_send_message', 'send_message_function');

JS (main.js)

$('.contact_form').submit(function(e) {
  e.preventDefault();
  var data = $(this).serializeArray();
  $.post(WPaAjax.ajaxurl, data, function(response) {
    $('body').append(response);
  });
});

Upvotes: 0

Views: 1893

Answers (1)

cabrerahector
cabrerahector

Reputation: 3948

The Bad Request error message you're seeing is because WordPress considers your request -wait for it- invalid:

  1. You're passing an array of objects to $.post when it expects a plain object or a string. You want to use FormData instead:

    $('.contact_form').submit(function(e) {
  e.preventDefault();
  var data = new FormData($(this)[0]);
  $.post(WPaAjax.ajaxurl, data, function(response) {
    $('body').append(response);
  });
});

and:

  1. WordPress expects the action parameter to be included with your request, which seems to be missing from your code. So:

    $('.contact_form').submit(function(e) {
  e.preventDefault();
  var data = new FormData($(this)[0]);
  data.append("action", "send_message");
  $.post(WPaAjax.ajaxurl, data, function(response) {
    $('body').append(response);
  });
});

Upvotes: 3

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