NodeJS CLS

// ALS
// v13.10.0, v12.17.0
import { AsyncLocalStorage, AsyncResource } from 'node:async_hooks';
const asyncLocalStorage = new AsyncLocalStorage();
asyncLocalStorage.run(123, () => {
  console.log(`Store: ${asyncLocalStorage.getStore()}`);
  setImmediate(() => {
    console.log(`setImmediate Store: ${asyncLocalStorage.getStore()}`);
  });
});

// node 8+
import { createHook } from 'async_hooks';
const hook = createHook({
  init: (asyncId, type, triggerId, resource) => {},
  before: (asyncId) => {},
  after: (asyncId) => {},
  destroy: (asyncId) => {},
});
hook.enable();

const { als } = require('asynchronous-local-storage');
const requestContext = {
  get: als.get,
  set: als.set,
};

const cls = require('cls-hooked');
const namespace = cls.createNamespace('my-very-own-namespace');