Practical guides on API monitoring, Node.js performance optimization, and database query profiling.
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.
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.
Traditional APM platforms can get expensive as your infrastructure and telemetry volume grow, 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.
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.
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.
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.
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.
I was stating "under 0.3ms per request" and "under 50 nanoseconds per DB call" on my own site without ever actually measuring either number. Here's the real benchmark, the real result, and why I published it even though it wasn't as flattering as the number I made up.