public function __construct() {

		/**
		 * Disable LifterLMS REST API Key authentication in favor of a custom authentication solution.
		 *
		 * @param bool $use_auth When true, LifterLMS Basic (or header) authorization will be used.
		 */
		$use_auth = apply_filters( 'llms_rest_use_authentication', true );
		if ( $use_auth ) {

			add_filter( 'determine_current_user', array( $this, 'authenticate' ), 15 );
			add_filter( 'rest_authentication_errors', array( $this, 'check_authentication_error' ), 15 );
			add_filter( 'rest_post_dispatch', array( $this, 'send_unauthorized_headers' ), 50 );
			add_filter( 'rest_pre_dispatch', array( $this, 'check_permissions' ), 10, 3 );

		}

	}