Apollo Observability

Overview

Comprehensive observability for Apollo.io integrations: Prometheus metrics (request count, latency, rate limits, credits), structured logging with PII redaction, OpenTelemetry tracing, and alerting rules. Tracks the metrics that matter: credit burn rate, enrichment success rate, and API health.

Prerequisites

• Valid Apollo API key
• Node.js 18+

Instructions

Step 1: Prometheus Metrics

// src/observability/metrics.ts
import { Counter, Histogram, Gauge, Registry } from 'prom-client';

export const registry = new Registry();