Custom Plugin to Handle Register User Endpoint for Wordpress

wp-register-user.php

<?php
/**
 * @package WP_Register_User
 * @version 1.0.0
 */
/*
Plugin Name: WP Register User
Plugin URI: https://github.com/ikhsanalatsary/
Description: Register user custom endpoint
Author: Abdul Fattah Ikhsan
Version: 1.0.0
Author URI: https://ikhsan.dev/
*/

add_action('rest_api_init', 'wp_rest_user_endpoints');
/**
 * Register a new user
 *
 * @param  WP_REST_Request $request Full details about the request.
 * @return array $args.
 **/
function wp_rest_user_endpoints($request) {
  /**
   * Handle Register User request.
   */
  register_rest_route('wp/v2', 'users/register', array(
    'methods' => 'POST',
    'callback' => 'wc_rest_user_endpoint_handler',
  ));
}
function wc_rest_user_endpoint_handler($request = null) {
  $response = array();
  $parameters = $request->get_json_params();
  $username = sanitize_text_field($parameters['username']);
  $email = sanitize_text_field($parameters['email']);
  $password = sanitize_text_field($parameters['password']);
  $first_name = sanitize_text_field($parameters['first_name']);
  $last_name = sanitize_text_field($parameters['last_name']);
  $alamat = sanitize_text_field($parameters['alamat']);
  $no_hp = sanitize_text_field($parameters['no_hp']);
  // $role = sanitize_text_field($parameters['role']);
  $error = new WP_Error();
  if (empty($username)) {
    $error->add(400, __("Username field 'username' is required.", 'wp-rest-user'), array('status' => 400));
    return $error;
  }
  if (empty($email)) {
    $error->add(401, __("Email field 'email' is required.", 'wp-rest-user'), array('status' => 400));
    return $error;
  }
  if (empty($password)) {
    $error->add(404, __("Password field 'password' is required.", 'wp-rest-user'), array('status' => 400));
    return $error;
  }
  // if (empty($role)) {
  //  $role = 'subscriber';
  // } else {
  //     if ($GLOBALS['wp_roles']->is_role($role)) {
  //      // Silence is gold
  //     } else {
  //    $error->add(405, __("Role field 'role' is not a valid. Check your User Roles from Dashboard.", 'wp_rest_user'), array('status' => 400));
  //    return $error;
  //     }
  // }
  $user_id = username_exists($username);
  if (!$user_id && email_exists($email) == false) {
    $userdata = array(
        'user_login' =>  $username,
        'user_nicename' =>  $username,
        'user_pass' =>  $password,
        'user_email'  =>  $email,
        'first_name' => $first_name,
        'last_name' => $last_name
    );
    // $user_id = wp_create_user($username, $password, $email);
    $user_id = wp_insert_user( $userdata ) ;
    if (!is_wp_error($user_id)) {
      update_user_meta( $user_id, 'alamat', $alamat );
      update_user_meta( $user_id, 'no_hp', $no_hp );
      // Ger User Meta Data (Sensitive, Password included. DO NOT pass to front end.)
      $user = get_user_by('id', $user_id);
      // $user->set_role($role);
      $user->set_role('subscriber');
      // WooCommerce specific code
      if (class_exists('WooCommerce')) {
        $user->set_role('customer');
      }
      // Ger User Data (Non-Sensitive, Pass to front end.)
      $response['code'] = 200;
      $response['message'] = __("User '" . $username . "' Registration was Successful", "wp-rest-user");
    } else {
      return $user_id;
    }
  } else {
    $error->add(406, __("Email already exists, please try 'Reset Password'", 'wp-rest-user'), array('status' => 400));
    return $error;
  }
  return new WP_REST_Response($response, 123);
}

wp_register_user_with_random.php

<?php
/**
 * @package WP_Register_User
 * @version 1.0.0
 */
/*
Plugin Name: WP Register User
Plugin URI: https://github.com/ikhsanalatsary/
Description: Register user custom endpoint
Author: Abdul Fattah Ikhsan
Version: 1.0.0
Author URI: https://ikhsan.dev/
*/

add_action('rest_api_init', 'wp_rest_user_endpoints');
/**
 * Register a new user
 *
 * @param  WP_REST_Request $request Full details about the request.
 * @return array $args.
 **/
function wp_rest_user_endpoints($request) {
  /**
   * Handle Register User request.
   */
  register_rest_route('wp/v2', 'users/register', array(
    'methods' => 'POST',
    'callback' => 'wc_rest_user_endpoint_handler',
  ));
}
function random_username($firstname, $lastname) {
    $firstname = strtolower($firstname);
    $lastname = strtolower(substr($lastname, 0, 2));
    $nrRand = rand(0, 100);
    return $firstname . $lastname . $nrRand;
}
function wc_rest_user_endpoint_handler($request = null) {
  $response = array();
  $error = new WP_Error();
  $parameters = $request->get_json_params();
  $username = sanitize_text_field($parameters['username']);
  $email = sanitize_text_field($parameters['email']);
  $password = sanitize_text_field($parameters['password']);
  $first_name = sanitize_text_field($parameters['first_name']);
  $last_name = sanitize_text_field($parameters['last_name']);
  $alamat = sanitize_text_field($parameters['alamat']);
  $no_hp = sanitize_text_field($parameters['no_hp']);
  // $role = sanitize_text_field($parameters['role']);
  if (empty($username)) {
    $username = random_username($first_name, $last_name);
  }
  if (empty($email)) {
    $error->add(401, __("Email field 'email' is required.", 'wp-rest-user'), array('status' => 400));
    return $error;
  }
  if (empty($password)) {
    $error->add(404, __("Password field 'password' is required.", 'wp-rest-user'), array('status' => 400));
    return $error;
  }
  // if (empty($role)) {
  //  $role = 'subscriber';
  // } else {
  //     if ($GLOBALS['wp_roles']->is_role($role)) {
  //      // Silence is gold
  //     } else {
  //    $error->add(405, __("Role field 'role' is not a valid. Check your User Roles from Dashboard.", 'wp_rest_user'), array('status' => 400));
  //    return $error;
  //     }
  // }
  $user_id = username_exists($username);
  if (!$user_id && email_exists($email) == false) {
    $userdata = array(
        'user_login' =>  $username,
        'user_nicename' =>  $username,
        'user_pass' =>  $password,
        'user_email'  =>  $email,
        'first_name' => $first_name,
        'last_name' => $last_name
    );
    // $user_id = wp_create_user($username, $password, $email);
    $user_id = wp_insert_user( $userdata ) ;
    if (!is_wp_error($user_id)) {
      update_user_meta( $user_id, 'alamat', $alamat );
      update_user_meta( $user_id, 'no_hp', $no_hp );
      // Ger User Meta Data (Sensitive, Password included. DO NOT pass to front end.)
      $user = get_user_by('id', $user_id);
      // $user->set_role($role);
      $user->set_role('subscriber');
      // WooCommerce specific code
      if (class_exists('WooCommerce')) {
        $user->set_role('customer');
      }
      // Ger User Data (Non-Sensitive, Pass to front end.)
      $response['code'] = 200;
      $response['message'] = __("User '" . $username . "' Registration was Successful", "wp-rest-user");
    } else {
      return $user_id;
    }
  } else {
    $error->add(406, __("Email already exists, please try 'Reset Password'", 'wp-rest-user'), array('status' => 400));
    return $error;
  }
  return new WP_REST_Response($response, 123);
}