Security News
Research
Data Theft Repackaged: A Case Study in Malicious Wrapper Packages on npm
The Socket Research Team breaks down a malicious wrapper package that uses obfuscation to harvest credentials and exfiltrate sensitive data.
@types/cls-hooked
Advanced tools
TypeScript definitions for cls-hooked
@types/cls-hooked provides TypeScript type definitions for the cls-hooked package, which is used for context propagation across asynchronous calls in Node.js. It allows you to create a context that can be accessed throughout the lifecycle of a request, even across asynchronous boundaries.
Creating a Namespace
This feature allows you to create a new namespace. A namespace is a context that can be used to store and retrieve data across asynchronous calls.
const cls = require('cls-hooked');
const namespace = cls.createNamespace('myNamespace');
Setting and Getting Context
Within a namespace, you can set and get values that will be available throughout the lifecycle of the asynchronous operations.
namespace.run(() => {
namespace.set('key', 'value');
console.log(namespace.get('key')); // Outputs: value
});
Binding Functions to a Namespace
You can bind functions to a namespace so that they have access to the context set within that namespace.
const boundFunction = namespace.bind(() => {
console.log(namespace.get('key'));
});
namespace.run(() => {
namespace.set('key', 'value');
boundFunction(); // Outputs: value
});
The async_hooks module provides an API to track asynchronous resources in Node.js. It is a lower-level API compared to cls-hooked and requires more manual management of context propagation.
This package is similar to cls-hooked and provides a way to maintain context across asynchronous calls. However, it is older and less maintained compared to cls-hooked.
zone.js is a library for managing asynchronous context propagation in JavaScript. It is more commonly used in Angular applications but can be used in Node.js as well. It provides a more comprehensive solution for managing asynchronous contexts.
npm install --save @types/cls-hooked
This package contains type definitions for cls-hooked (https://github.com/jeff-lewis/cls-hooked).
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/cls-hooked.
/// <reference types="node" />
import { EventEmitter } from "events";
export interface Namespace<N = Record<string, any>> {
active: any;
set<K extends keyof N = keyof N>(key: K, value: N[K]): N[K];
get<K extends keyof N = keyof N>(key: K): N[K];
run(fn: (...args: any[]) => void): void;
runAndReturn<T>(fn: (...args: any[]) => T): T;
runPromise<T>(fn: (...args: any[]) => Promise<T>): Promise<T>;
bind<F extends Function>(fn: F, context?: any): F; // eslint-disable-line @typescript-eslint/no-unsafe-function-type
bindEmitter(emitter: EventEmitter): void;
createContext(): any;
enter(context: any): void;
exit(context: any): void;
}
// eslint-disable-next-line @definitelytyped/no-unnecessary-generics
export function createNamespace<N = Record<string, any>>(name: string): Namespace<N>;
// eslint-disable-next-line @definitelytyped/no-unnecessary-generics
export function getNamespace<N = Record<string, any>>(name: string): Namespace<N> | undefined;
export function destroyNamespace(name: string): void;
export function reset(): void;
These definitions were written by Leo Liang, and Lucian Buzzo.
FAQs
TypeScript definitions for cls-hooked
We found that @types/cls-hooked demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Research
The Socket Research Team breaks down a malicious wrapper package that uses obfuscation to harvest credentials and exfiltrate sensitive data.
Research
Security News
Attackers used a malicious npm package typosquatting a popular ESLint plugin to steal sensitive data, execute commands, and exploit developer systems.
Security News
The Ultralytics' PyPI Package was compromised four times in one weekend through GitHub Actions cache poisoning and failure to rotate previously compromised API tokens.