Referencia de la API node:async_hooks

Elide proporciona AsyncLocalStorage, AsyncResource, createHook, executionAsyncId, triggerAsyncId, executionAsyncResource y asyncWrapProviders.

AsyncLocalStorage admite run, exit, getStore, enterWith, disable, snapshot y bind. La propagación del contexto es parcial: el código síncrono y un temporizador creado dentro de run pueden observar el almacén, mientras que una continuación de Promise no puede.

import { AsyncLocalStorage } from "node:async_hooks";

const storage = new AsyncLocalStorage();
storage.run("request", () => {
  console.log(storage.getStore()); // request

  Promise.resolve().then(() => {
    console.log(storage.getStore()); // undefined
  });
});

createHook() devuelve un objeto con enable() y disable(), pero Elide no proporciona el ciclo de vida completo de los recursos asíncronos de Node. Las bibliotecas que necesitan contexto a través de await no deben depender de esta implementación.

Reference

Status: Partial · 36 of 45 suite tests pass (80.0%) · since 1.1.0

Exports

Export	Kind	Status	Notes
`async_hooks`	module	Partial	hooks fire for timers/immediates/promises but not yet for TCP/HTTP/TLS native resources
`createHook()`	function	Full	Creates a new AsyncHook instance
`executionAsyncId()`	function	Full	Returns the asyncId of the current execution context
`triggerAsyncId()`	function	Full	Returns the ID of the resource responsible for calling the callback that is currently being executed
`AsyncLocalStorage`	property	Full	The AsyncLocalStorage class
`AsyncResource`	property	Full	The AsyncResource class

Tests: node-api node:async-hooks: 36 pass, 8 fail, 1 error, 3 skipped. Failing: test-async-hooks-destroy-on-gc.js, test-async-hooks-enable-recursive.js, test-async-hooks-fatal-error.js, test-async-hooks-http-parser-destroy.js, test-async-hooks-top-level-clearimmediate.js, test-async-local-storage-http-agent.js, test-async-local-storage-http-multiclients.js, test-async-local-storage-http-parser-leak.js, and 1 more.