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Node.js & API Monitoring Guides

Practical guides on API monitoring, Node.js performance optimization, and database query profiling.

Express.jsMonitoringNode.jsAPI

How to Monitor Your Express.js API in 60 Seconds — No Config Required

Most API monitoring guides need Prometheus, Grafana, and an afternoon. Here's how to get full observability with one line of middleware — latency, errors, DB queries, and traces.

Rahul Patel·7 min read·April 8, 2026
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Node.jsDatabasePerformanceExpress

How to Detect and Fix N+1 Queries in Node.js — The Complete Guide

N+1 queries silently kill your API performance. Learn what causes them, how to detect them manually, and how to auto-detect them with one line of middleware.

Rahul Patel·8 min read·March 30, 2026
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Node.jsAPMMonitoringPerformance

Node.js APM: The Complete Guide to Application Performance Monitoring

APM tools like Datadog cost $23/host/month and take an afternoon to configure. This guide shows you what APM actually is, what to monitor in Node.js, and how to get full APM visibility in under 2 minutes.

Rahul Patel·9 min read·April 20, 2026
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FastifyMonitoringNode.jsAPI

How to Monitor a Fastify API in Production (Zero Config)

Fastify is fast — but fast and invisible is worse than slow and observable. Here's how to add full API monitoring to Fastify in under 2 minutes with zero config: latency, errors, DB queries, and a real-time dashboard.

Rahul Patel·6 min read·April 18, 2026
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Node.jsPerformanceAPIOptimization

How to Reduce API Response Time in Node.js — A Practical Guide

Slow APIs kill conversion rates, frustrate users, and waste infrastructure spend. This guide walks through measuring, diagnosing, and fixing slow response times in Node.js APIs — with real examples.

Rahul Patel·10 min read·April 15, 2026
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Node.jsError TrackingExpressAPI

Node.js API Error Tracking: Catch 5xx Errors Before Your Users Do

A 5% error rate on your Node.js API can quietly kill your product. This guide covers how to track, aggregate, and alert on API errors in Express and Fastify — without spending a day setting up error monitoring.

Rahul Patel·7 min read·April 12, 2026
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Node.jsDatabasePerformanceMongoosePrisma

How to Debug Slow Database Queries in Node.js (Mongoose, Prisma, pg)

Slow database queries are responsible for the majority of API latency problems. This guide shows you how to find and fix slow queries across the most common Node.js database libraries — without instrumenting everything by hand.

Rahul Patel·9 min read·April 10, 2026
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