node-async-context (asyncctx)

Deprecation

quick start using AsyncLocalStorage

 class ContinuationLocalStorage<T> extends AsyncLocalStorage<T> {
 public getContext(): T | undefined {
 return this.getStore();
 }
 public setContext(value: T): T {
 this.enterWith(value);
 return value;
 }
 }

Introduction

import { ContinuationLocalStorage } from 'asyncctx';
class MyLocalStorage {
 value: number;
}
let cls = new ContinuationLocalStorage<MyLocalStorage>();
cls.setRootContext({ value: 1});
process.nextTick(() => {
 let curr1 = cls.getContext(); // value is 1
 cls.setContext({ value: 2}); // value should be 2 in the current execution context and below
 process.nextTick(() => {
 let curr2 = cls.getContext(); // value is 2
 cls.setContext({ value: 3}); // value should be 3 in the current execution context and below
 process.nextTick(() => {
 let curr3 = cls.getContext(); // value is 3
 });
 });
 process.nextTick(() => {
 let curr4 = cls.getContext(); // value is 2
 });
});

License

Release Notes