Node.js FAQ: Top Questions
40. What is the Node.js diagnostics channel?
The diagnostics channel , introduced in Node.js 15, is a built-in API for publishing and subscribing to diagnostic events, enabling lightweight monitoring without external dependencies.
-
Module:
diagnostics_channel, stable in Node.js 20. -
Channels:
Named channels (e.g.,
net.connect) or custom. - Benefits: Low overhead, integrates with tracing tools.
- Use Case: Debugging, performance monitoring.