What is node-loop-detective?

Open-source Node.js tool that instruments I/O ops, catching slow HTTP, DNS, DB calls — now including fetch() and dns.promises.

How to track fetch() in Node.js?

Install node-loop-detective v1.5.0+, require it at app start with a threshold. It auto-patches global fetch.

Yes — gracefully skips fetch on pre-18, patches legacy APIs fully.

🛠️ Developer Tools

Dashboards lie. Your Node.js app hums along green, but fetch() sneaks slow requests past your watchful eyes. Time to plug the holes.

theAIcatchup Apr 08, 2026 3 min read

Fetch() and dns.promises bypass traditional Node.js http.request and callback DNS tracking, hiding latency. 𝕏
Node-loop-detective v1.5.0 patches both new APIs for full I/O visibility. 𝕏
Undici-powered fetch signals Node's browser convergence—monitor it now or regret later. 𝕏

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Community-driven. Code-first.

#Node.js #dns.promises #fetch tracking #fetch() #instrumentation #node-loop-detective #observability

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Originally reported by Dev.to