Passkey Flex Node.js SDK

Create transactions and manage Passage users with Node.js.

Prerequisites

Passage App ID and API Key from Passage Console

Install

Install the passage-flex-node package.

npm i @passageidentity/passage-flex-node

Initialize

Initialize a Passage Passkey Flex instance using your app ID found in Passage Console.

import { PassageFlex } from '@passageidentity/passage-flex-node';
 
const passage = new PassageFlex({
    appId: process.env.PASSAGE_APP_ID!,
    apiKey: process.env.PASSAGE_API_KEY!,
});

Create transactions

The Passkey Flex Node.js SDK provides a way to create transactions, which are used to kick off a registration or authentication user flow. To learn more, see our implementation guides for registration and authentication.

Verify nonce

In addition to creating transactions, the Passkey Flex Node.js SDK also provides a way to verify the successful registration or authentication of a user’s passkey.

// The nonce should come from your client upon successful registration or authentication of the user's passkey
const nonce = req.nonce;
 
const externalId: string = await passage.auth.verifyNonce(nonce);
 
// The externalId should match your user's unique identifier
const user = this.repo.getUserById(externalId);

User management

The Passkey Flex Node.js SDK also provides a way to securely manage users and their WebAuthn devices.

The functionality currently available on a user is:

• Get a user’s information
• List all devices for a user
• Revoke a particular device from a user