Hoster Updater.php - Set Transient on error

updater.php

public function request() {
            $remote = get_transient( $this->cache_key );

            // If we have any cached value (success OR failure) take note.
            if ( false !== $remote ) {
                if ( ! is_array( $remote ) ) {
                    $decoded = json_decode( $remote );
                    if ( json_last_error() === JSON_ERROR_NONE ) {
                        $remote = $decoded;
                    }
                }
                return $remote;
            }

            // No cache yet – do a live request.
            $response = wp_remote_get(
                $this->remote_url,
                array(
                    'timeout' => 10,
                    'headers' => array( 'Accept' => 'application/json' ),
                )
            );

            if (
                is_wp_error($response)
                || 200 !== wp_remote_retrieve_response_code($response)
                || empty(wp_remote_retrieve_body($response))
            ) {
                // lets add more details to the error log rather than just Hoster update check error:
                $debug = [
                    'url'        => $this->remote_url,
                    'http_code'  => wp_remote_retrieve_response_code($response),
                    'body'       => wp_remote_retrieve_body($response),
                    'wp_error'   => is_wp_error($response) ? $response->get_error_message() : null,
                    'reason'     => (
                        is_wp_error($response)              ? 'wp_error' :
                        (wp_remote_retrieve_response_code($response) !== 200 ? 'non_200_status' :
                        (empty(wp_remote_retrieve_body($response)) ? 'empty_body' :
                        'unknown_error'))
                    ),
                ];

                error_log( $this->slug . ' Updater error: ' . json_encode($debug)); // Respects which plugin it is being used for i.e devkit/devkit.php

                // Prevent request spam – cache the failure for 1 hour
                set_transient($this->cache_key, json_encode(['error' => $debug]), HOUR_IN_SECONDS);

                return false;
            }