How to Add Two-Factor Authentication with Node.js and Express

How to Add Two-Factor Authentication with Node.js and Express

Two-factor authentication refers to a pattern of users needing both something they know, like a password, and something they have, like a verification token from a mobile device. This tutorial will cover how to implement a verification token system with the Vonage Verify API and Express.js.

Two-factor authentication refers to a pattern of users needing both something they know, like a password, and something they have, like a verification token from a mobile device.

This tutorial will cover how to implement a verification token system with the Vonage Verify API and Express.js. We have a similar Node.js tutorial using Koa

The application will have three pages — an initial page that asks for a mobile number, a page where users provide the code sent to them, and finally, a page which they’ll see if their code was correct and the verification successful.

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The finished code example is available at https://github.com/nexmo-community/verify-node-express

Prerequisites

  • Node.js installed on your machine
  • Vonage API account — take note of your API Key & Secret on the dashboard

Vonage API Account

To complete this tutorial, you will need a Vonage API account. If you don’t have one already, you can sign up today and start building with free credit. Once you have an account, you can find your API Key and API Secret at the top of the Vonage API Dashboard.

expressjs 2fa nodejs authentication

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