How to create a new user using Services 3 And REST with Curl

I would recommend to use user create method for this. Please use test as a reference about curl options and how arguments should be prepared http://drupalcode.org/project/services.git/blob/refs/heads/7.x-3.x:/test...

Feel free to reopen this issue if have any other questions.

if you send your data as json, then you should encode your arguments with json_encode. So
$user_data = http_build_query($user_data);

should be
$user_data = json_encode($user_data);

Also mention json formatter in your call. So instead of
$request_url = $services_url . '/user';

Do
$request_url = $services_url . '/user.json';

yes, you may have problem with permissions. Please make sure when you create a user, you have permission 'administer users'.

Services understand the method you are calling by request type:
POST create
GET retrieve
PUT update
DELETE delete

In your case you do POST request, so services understand it properly.

If you do action (like user/register) you should do POST query to http://localhost/test/trunk/rest/user/register.json

when you register you should send:
array('name' => 'new123', 'mail' => 'new123@email.com', 'pass' => 'password123').

See http://drupalcode.org/project/services.git/blob/refs/heads/7.x-3.x:/test... for example.

Congrats! Marking this issue fixed.

Building on the example provided above, I added required fields to the user account, which display on the user registration form in Drupal 7. How would I go about pre-populating these fields in the user data array? Is this allowed?

Sample Required field

[field_user_first] => Array
        (
            [und] => Array
                (
                    [0] => Array
                        (
                            [value] => test
                            [format] => 
                            [safe_value] => test
                        )

                )

        )

I tried add this to the user data array, but it didn't work when I tried to to add a user through the script:

// User data
$user_data = array();
$user_data['name'] = 'test9';
$user_data['mail'] = 'test9@example.com';
$user_data['pass'] = 'test12';
$user_data['pass1'] = 'test12';
$user_data['status'] = 1;
$user_data['field_user_first'] = array(
                                      'und' =>
                                      array (
                                        0 =>
                                        array (
                                          'value' => 'test',
                                          'format' => NULL,
                                          'safe_value' => 'test',
                                        ),
                                      ),
                                    );

in sites/all/modules/services/resources/user_resource.inc, I don't see any code that would map form state values for added fields (unless I'm wrong?)

/**
 * Create a new user.
 *
 * This function uses drupal_form_submit() and as such expects all input to match
 * the submitting form in question.
 *
 * @param $account
 *   A object containing account information. The $account object should
 *   contain, at minimum, the following properties:
 *     - name (user name)
 *     - mail (email address)
 *     - pass (plain text unencrypted password)
 *
 *   These properties can be passed but are optional
 *     - status (0 for blocked, otherwise will be active by default)
 *     - notify (1 to notify user of new account, will not notify by default)
 *
 *  Roles can be passed in a roles property which is an associative
 *  array formatted with '<role id>' => '<role id>', not including
 *  the authenticated user role, which is given by default.
 *
 * @return
 *   The user object of the newly created user.
 */
function _user_resource_create($account) {
  // Adds backwards compatability with regression fixed in #1083242
  $account = _services_arg_value($account, 'account');

  // Load the required includes for saving profile information
  // with drupal_form_submit().
  module_load_include('inc', 'user', 'user.pages');

  // register a new user
  $form_state['values'] = $account;
  $form_state['values']['pass'] = array(
    'pass1' => $account['pass'],
    'pass2' => $account['pass'],
  );  
  $form_state['values']['op'] = variable_get('services_user_create_button_resource_create', t('Create new account'));

  // execute the register form
  drupal_form_submit('user_register_form', $form_state);
  // find and store the new user into the form_state
  if(isset($form_state['values']['uid'])) {
    $form_state['user'] = user_load($form_state['values']['uid']);
  }

  // Error if needed.
  if ($errors = form_get_errors()) {
    return services_error(implode(" ", $errors), 406, array('form_errors' => $errors));
  }
  else {
    $user = array('uid' => $form_state['user']->uid);
    if ($uri = services_resource_uri(array('user', $user['uid']))) {
      $user['uri'] = $uri;
    }   
    return $user;
  }
}

I wanted to share my experience with getting this to work.

First point learned:
I was going round and round getting a 406, when I realized that I had some required fields on our registration form.

If you have any required fields, you must send those in your post array.

Second point learned
Even though all required fields were being sent I still got a 406... why? Mollom. We have mollom set up on our registration form and this leads to a 406 (I'm not sure yet how to get around this). When I disabled mollom the 406 disappeared and the user was created.

Captcha form elements, which are required, must be filled in, or disabled.

How to send field values
I thought I'd paste the array I'm sending, which shows how to send fields

<?php
$account = array(
  'name' => 'gamma',
  'pass' => 'gammapass',
  'mail' => 'gamma@gamma.com',
  'notifiy' => 1,
);
$account['field_first_name']['und'][0]['value'] = 'Gamma';
$account['field_last_name']['und'][0]['value'] = 'Smith';
?>

Follow up post to #16: How I got around mollom when creating users through the API call.

In the authentication function I set a session var:

$_SESSION['my_module']['active_api_call'] = TRUE

Then in a hook_form_alter I test for that variable if true and then hide mollom form elements:

<?php
/**
 * Implements hook_form_alter().
 */
function my_module_form_alter(&$form, $form_state, $form_id) {
  // Remove mollom protection on forms when an api user is accessing them
  if ($_SESSION['my_module']['active_api_call'] = TRUE && array_key_exists('mollom', $form)) {
    // Remove validate and submit functions
    $form_keys = array('#validate', '#submit');
    foreach ($form_keys as $form_key) {
      foreach ($form[$form_key] as $key => $func) {
        if (strpos($func, 'mollom_') === 0) {
          unset($form[$form_key][$key]);
        }
      }
    }
    // Remove the mollom array
    unset($form['mollom']);
  }
}
?>

What I learned..
You can inspect user register page and these values what you gonna submit are these values what you see when you inspect name attribute.
So

<input type="text" maxlength="60" <strong>name="name"</strong> id="edit-name" size="60" value="" class="form-text required">
<input type="text" maxlength="64" name="mail" id="edit-mail" size="60" value="" class="form-text required">
<input type="text" maxlength="64" name="conf_mail" id="edit-conf-mail" size="60" value="" class="form-text required">

would come
values => name=myusername, mail=mymail@mail.com, conf_mail=mymail@mail.com, status=1 (status 1 will make user logged active).
And now (Drupal 6) post these values to http://somedomail.com/?q=api/user/register.json
And now (Drupal 7) post these values to http://somedomail.com/api/user/register.json

Another way to disable mollom:

<?php
function _MYMODULE_disable_mollom() {
  if (function_exists('_mollom_status')) {
    $static_cache = &drupal_static('_mollom_status', array());
    $testing_mode = (int) variable_get('mollom_testing_mode', 0);
    $status = &$static_cache[$testing_mode];
    $status['keys'] = FALSE;
    $status['response'] = NULL;
  }
}
?>

Can be called any time after mollom_init(), so doesn't have to be specifically in a form alter.

Also, to those struggling to send field data...

Instead of

<?php
$account['field_first_name']['und'][0]['value'] = 'Gamma';
$account['field_last_name']['und'][0]['value'] = 'Smith';
?>

I am using

<?php
$account['field_first_name[und][0][value]'] = 'Gamma';
$account['field_last_name[und][0][value]'] = 'Smith';
?>

Your comments above are very helpfully and I have made a custom php script with which my visitors are able to register through a custom form.

After that I have created a custom user profiles pages where all fields of currently logged user are automatically filled... Now I want to find a way to update those fields with PHP cURL,

So, that means when user go to custom user profile page he/she will be able to change lets say 'e-mail', 'city', 'country' and so on and click Submit. After that fields needs to be updated...

Any kind of help will be appreciated.

Thanks

I was getting the 406 error when trying to create a new node, which had a required field, which didn't have a default value. After setting a default value, it now works as designed.

Here is my code to create an user using Rest Services coming OOTB from Drupal:

Prerequisites:

• Rest Services module must be enabled
• Rest UI module must be installed and enabled
• Perform this as an administrator or adjust REST Services rights in Extend => Rest Services => Rights
• In configuration => REST, enable resource "user" for POST with hal+json, and the authentication prefer you prefer. In my example below, it is Basic Authentication.

Here is my Query:
POST your.drupal.website/entity/user?_format=hal_json

Headers:

Content-Type: application/hal+json
X-CSRF-Token: <your_token_retrieved_from_your.drupal.website/rest/session/token>
Authorisation: Basic xxxxxxxxxxxxxxxxxxxxxxx

Body:

{
    "_links": {
      "type": {
        "href": "http://your.drupal.website/rest/type/user/user"
      }
    },
	"name":[{"value":"test"}],
	"mail":[{"value":"test@test.fr"}],
	"roles":[{"target_id":"administrator"}],
	"pass":"testpassword"
}

Ugh. #20 was right for me today. Odd. And undesirable.

Anyone have a tip on how to make this cleaner?

I tried #24 and it doesn't work for me. I'm trying to call /entity/user rest service from D7, but it keeps me saying Access denied, no matter how I try to access. I tried using basic auth with a specific D8 user, with super user credentials, without credentials (as anonymous user)...

However, I can create nodes and taxonomy terms using /entity/node and /entity/taxonomy_term endpoints.

Any ideas about what am I doing wrong?

Thanks

EDIT: Answering myself, finally I solved my problem and it was not related to the process explained in #24. It was a problem with a field, giving, as a result a not valid entity.