@454creative/easy-email/dist/utils/performance.d.ts

A framework-agnostic email service library for Node.js with observability and monitoring

/**
 * Performance monitoring utilities for the email library
 */
export interface PerformanceMetrics {
    operation: string;
    duration: number;
    timestamp: Date;
    success: boolean;
    error: string | undefined;
    metadata: Record<string, any> | undefined;
}
export interface PerformanceConfig {
    enabled: boolean;
    thresholdMs: number;
    logSlowOperations: boolean;
    trackMemoryUsage: boolean;
}
export declare class PerformanceMonitor {
    private static instance;
    private metrics;
    private config;
    private startTimes;
    private metadataStore;
    private constructor();
    static getInstance(config?: Partial<PerformanceConfig>): PerformanceMonitor;
    /**
     * Start timing an operation
     */
    startOperation(operation: string, metadata?: Record<string, any>): void;
    /**
     * End timing an operation and record metrics
     */
    endOperation(operation: string, success: boolean, error?: string): PerformanceMetrics | null;
    /**
     * Get performance summary
     */
    getSummary(): {
        totalOperations: number;
        averageDuration: number;
        slowOperations: PerformanceMetrics[];
        successRate: number;
        topOperations: Array<{
            operation: string;
            count: number;
            avgDuration: number;
        }>;
    };
    /**
     * Clear all metrics
     */
    clearMetrics(): void;
    /**
     * Get all metrics
     */
    getMetrics(): PerformanceMetrics[];
    /**
     * Update configuration
     */
    updateConfig(config: Partial<PerformanceConfig>): void;
    private getMetadata;
}
/**
 * Performance decorator for methods
 */
export declare function trackPerformance(operationName?: string): (target: any, propertyName: string, descriptor: PropertyDescriptor) => void;
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