lightweight-browser-load-tester/dist/exporters/prometheus-exporter.d.ts

A lightweight load testing tool using real browsers for streaming applications with DRM support

import { PrometheusConfiguration, BrowserMetrics, DRMMetrics, NetworkMetrics, ErrorLog, TestSummary } from '../types/index';
/**
 * Exports metrics to Prometheus RemoteWrite endpoint in real-time
 */
export declare class PrometheusExporter {
    private config;
    private metricBuffer;
    private flushTimer?;
    private isShuttingDown;
    constructor(config: PrometheusConfiguration);
    /**
     * Export browser metrics to Prometheus
     */
    exportBrowserMetrics(metrics: BrowserMetrics): Promise<void>;
    /**
     * Export DRM metrics to Prometheus
     */
    exportDRMMetrics(metrics: DRMMetrics): Promise<void>;
    /**
     * Export network metrics to Prometheus
     */
    exportNetworkMetrics(metrics: NetworkMetrics[]): Promise<void>;
    /**
     * Export test summary metrics to Prometheus
     */
    exportTestSummary(summary: TestSummary): Promise<void>;
    /**
     * Export error metrics to Prometheus
     */
    exportErrorMetrics(errors: ErrorLog[]): Promise<void>;
    /**
     * Manually flush all buffered metrics to Prometheus
     */
    flush(): Promise<void>;
    /**
     * Shutdown the exporter and flush remaining metrics
     */
    shutdown(): Promise<void>;
    /**
     * Add metrics to the buffer and trigger flush if batch size is reached
     */
    private addMetricsToBuffer;
    /**
     * Start the periodic flush timer
     */
    private startFlushTimer; /**

   * Send metrics to Prometheus RemoteWrite endpoint
   */
    private sendMetricsToPrometheus;
    /**
     * Convert internal metrics format to Prometheus RemoteWrite format
     */
    private convertToPrometheusFormat;
    /**
     * Encode Prometheus payload using Protocol Buffers (simplified JSON for now)
     * In production, you might want to use actual protobuf encoding for better performance
     */
    private encodePrometheusPayload;
    /**
     * Make HTTP request to Prometheus RemoteWrite endpoint
     */
    private makeHttpRequest;
    /**
     * Sleep for specified milliseconds
     */
    private sleep;
    /**
     * Get current buffer size for monitoring
     */
    getBufferSize(): number;
    /**
     * Get configuration for debugging
     */
    getConfig(): Readonly<PrometheusConfiguration>;
}
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