Read the original article: Two-Factor Authentication in Spring Webflux REST API
Multi-factor authentication became common practice for many cases, especially for enterprise applications or those that deal with sensitive data (like finance apps). Moreover, MFA is enforced (especially in the EU) by law in a growing number of industries, and if you are working on an app, that by some requirement, has to enable two-factor auth in some way, don’t hesitate to check out this post.
In this article, I will show you how to write a two-factor authentication for a reactive API, built with Spring Webflux. This app uses TOTP (one-time codes, generated by an app on the user device – like Google Authenticator)m as the second security factor, alongside email and password pairs.
Read the original article: Two-Factor Authentication in Spring Webflux REST API