traceapm/index.d.ts

SDK for OpenTelemetry auto-instrumentation and OTLP export for Node.js apps.

// Type definitions for traceapm
import { Request, Response, NextFunction } from 'express';

/**
 * Express middleware for recording custom HTTP request duration metrics.
 * Usage: app.use(apmHttpMetricsMiddleware)
 */
export declare function apmHttpMetricsMiddleware(req: Request, res: Response, next: NextFunction): void;

/**
 * Helper to record a custom HTTP request duration metric manually.
 * @param durationMs Duration in milliseconds
 * @param attributes Optional attributes (route, status_code, method, etc.)
 */
export declare function recordHttpRequestDuration(durationMs: number, attributes?: Record<string, any>): void;

/**
 * Initialize OpenTelemetry SDK for your app.
 * @param options serviceName, endpoint, attributes
 */
export declare function init(options?: {
  serviceName?: string;
  endpoint?: string;
  attributes?: Record<string, any>;
}): void;