web-performance-monitor-sdk/dist/metrics-collector.d.ts

A modern, lightweight performance monitoring SDK for web applications. Monitor Core Web Vitals (LCP, FCP, FID, CLS, TTFB) with sendBeacon support.

/**
 * 性能指标收集器
 */
import { PerformanceMetrics, MetricDetail, PerformanceMonitorConfig } from './types';
export declare class MetricsCollector {
    private metrics;
    private config;
    private observers;
    constructor(config: PerformanceMonitorConfig);
    /**
     * 初始化性能监控
     */
    private init;
    /**
     * 判断是否应该收集数据
     */
    private shouldCollect;
    /**
     * 监控Paint指标 (FCP)
     */
    private observePaint;
    /**
     * 监控LCP指标
     */
    private observeLCP;
    /**
     * 监控FID指标
     */
    private observeFID;
    /**
     * 监控CLS指标
     */
    private observeCLS;
    /**
     * 监控TTFB指标
     */
    private observeTTFB;
    /**
     * 报告单个指标
     */
    private reportMetric;
    /**
     * 通过sendBeacon发送数据
     */
    private sendViaBeacon;
    /**
     * 通过fetch发送数据
     */
    private sendViaFetch;
    /**
     * 获取所有收集的指标
     */
    getMetrics(): PerformanceMetrics;
    /**
     * 获取详细的指标信息
     */
    getDetailedMetrics(): Record<string, MetricDetail>;
    /**
     * 停止监控
     */
    disconnect(): void;
    /**
     * 调试日志
     */
    private log;
}
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