Some filters to activate API request and token refresh error logging.

git-updater-error-logging.php

<?php

/**
 * Plugin Name: Git Updater Error Logging
 * Description: A plugin to help debug Git Updater issues by logging API requests and responses.
 * Version: 0.1.0
 * Author: Andy Fragen
 * License: MIT
 * Requires at least: 6.8
 * Requires PHP: 8.2
 * Network: true
 * Gist Plugin URI: https://gist.github.com/afragen/72844bc519f4a3be9bd1985feaaacfaf
 */

namespace Fragen\Git_Updater_Error_Logging;

/**
 * Bootstrap
 *
 * @return void
 */
function bootstrap(): void {
    add_filter( 'gu_debug_api_requests', '__return_true' );
    add_filter( 'gu_debug_token_refresh', '__return_true' );
}

bootstrap();