
Research
Node.js Fixes AsyncLocalStorage Crash Bug That Could Take Down Production Servers
Node.js patched a crash bug where AsyncLocalStorage could cause stack overflows to bypass error handlers and terminate production servers.
@authsignal/node
Advanced tools
[](https://npmjs.org/package/@authsignal/node) [](https://github.com/authsignal/authsignal-node/blob/main/LICENSE.md)
The official Authsignal Node.js library for server-side applications. Use this SDK to easily integrate Authsignal's multi-factor authentication (MFA) and passwordless features into your Node.js backend.
Using npm:
npm install @authsignal/node
Using yarn:
yarn add @authsignal/node
Using pnpm:
pnpm add @authsignal/node
Using bun:
bun add @authsignal/node
Initialize the Authsignal client with your secret key from the Authsignal Portal and the API URL for your region.
import { Authsignal } from "@authsignal/node";
// Initialize the client
const authsignal = new Authsignal({
apiSecretKey: process.env.AUTHSIGNAL_SECRET_KEY,
apiUrl: process.env.AUTHSIGNAL_API_URL, // Use region-specific URL
});
| Region | API URL |
|---|---|
| US (Oregon) | https://api.authsignal.com/v1 |
| AU (Sydney) | https://au.api.authsignal.com/v1 |
| EU (Dublin) | https://eu.api.authsignal.com/v1 |
This SDK is licensed under the MIT License.
For more information and advanced usage examples, refer to the official Authsignal Server-Side SDK documentation.
FAQs
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The npm package @authsignal/node receives a total of 756 weekly downloads. As such, @authsignal/node popularity was classified as not popular.
We found that @authsignal/node demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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Research
Node.js patched a crash bug where AsyncLocalStorage could cause stack overflows to bypass error handlers and terminate production servers.

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