gistfile1.txt

//Add a timezone field to user profile - Wes Huber 10/2022
add_action( 'rest_api_init', 'adding_user_meta_rest' );

    function adding_user_meta_rest() {
       register_rest_field( 'user',
                            'timezone',
                             array(
                               'get_callback'      => 'user_meta_callback',
                               'update_callback'   => 'timezone_update',
                               'schema'            => null,
							   'show_in_rest' => true,
							   'auth_callback'	        => 'permission_check',
                                )
                          );
    }
	/**
 * Check permissions
 *
 * @param WP_Rest_Request $request
 * @return bool
 */
function permission_check( $request ) {
    return true;
}
	function timezone_update($value){
		$user_id = get_current_user_id();
		$field_name = 'timezone';
		return update_user_meta( $user_id, $field_name, $value );
	}
	function user_meta_callback( $user, $field_name, $request) {
		$user_id = get_current_user_id();
		$field_name = 'timezone';
		return get_user_meta( $user_id, $field_name, true );
	}