Node.js FAQ: Top Questions
29. What are async hooks in Node.js?
Async hooks
, part of the
async_hooks
module, provide an API to track asynchronous resources in Node.js, useful for debugging, profiling, or tracing async operations.
-
Hooks:
init,before,after,destroy,promiseResolve. - AsyncResource: Represents async operations (e.g., timers, promises).
- Stability: Experimental in Node.js 20; use with caution.
- Use Case: Monitoring async context, custom diagnostics.