Wp_admin ajax request returns with response "0"

I am new to code, and trying to learn things by doing them.

Currently, I am trying to do something very simple using wordpress. which I am trying to create some posts in wordpress, using some external data.

I can fetch the data using CURL. No problem with that and post it using Wp_insert_post, directly.

But, What I want to do is trigger the wp_insert_post function on click of a button in the admin panel ( I have created this as a plugin and a separate plugin dashboard, where the button Is embedded). I have been messing around with the code, and sending the data to wp-admin-ajax.php work fine, and gives the response code 200. But, the response receiving is "0" . if the data passed through are correct, I presume, the response should be "1" ?

I have the following code at the moment.

//Button

<form id="formtesting">
<input type="text" id="name" placeholder="Name">
<input type="submit" id="user-submit" value="user-submit">

//Ajax Call

$(document).ready(function() {
  var userSubmitButton = document.getElementById('user-submit');

  var adminAjaxRequest = function(formData, myaction) {
    $.ajax({
      type: 'POST',
      dataType: 'json',
      url: '/wpdevelopment/wp-admin/admin-ajax.php',
      data: {
        action: myaction,
        data: formData
      },
      success: function(response) {
        if (true === response.success) {
          alert('success');
        } else {
          alert(response);
        }
      }
    });
  };

  userSubmitButton.addEventListener('click', function(event) {
    event.preventDefault();
    var formData = {
      'name': document.getElementById('name').value

    };
    adminAjaxRequest(formData, 'data_submission');
  });
});

And here is my test function // to test whether the function initiate properly, i try to send a Json error, So then I can include wp_insert_post details.

function data_submission(){


wp_send_json_error( 'I am an error' );}
add_action( 'wp_ajax_data_submission', 'data_submission' );
add_action( 'wp_ajax_nopriv_data_submission', 'data_submission' );

Could not locate where the faulty is. Some help would be appriciated

tks

Solution

First this is not a standard way to use ajax in wordpress, use wp_localize_script for embedding the global ajax_url variable,

 wp_register_script('plugin-ajaxJs', plugins_url('/js/ajax-call.js', __FILE__));
 wp_enqueue_script('plugin-ajaxJs');
 wp_localize_script('plugin-ajaxJs', 'my_ajax_url', array('ajax_url' => admin_url('admin-ajax.php')));

Now as url in ajax you can add my_ajax_url.ajax_url, this will send a request to admin-ajax.php.

Now coming to your question you are returning an wp_json_error so the result is 0, use this and return whatever data you wants in ajax success,

$response = array();
$response['result'] = 1;
wp_send_json($response);