This is a sample Serverless application to accompany a series of blog posts about the Serverless application framework. It's work in progress. Follow the blog posts.
It creates a simple service which checks a password of the day. The day's password is generated based on the date.
It can be used as a simple dual factor authorization mechanism. The customer needs the password of the day to proceed. You can deliver it however you like (phone, email, another service, etc.)