Understanding the notion of serverless computing

Functions are deployed as a single unit to a FaaS platform. This platform then deals with provisioning the underlying infrastructure, deploying your function code, scaling up and down, resilience and reliability, billing, and security (authentication, authorization, and isolation). It has to do all this blazingly fast, at huge scale and for any language/platform that you wish to use.

The primary focus of a serverless platform is your code. The FaaS platform encourages you to break up your application into small, isolated parts. This is great for developers as small, isolated functions are easier to reason about and manage.

Your FaaS platform will enable your app to scale organically per request, without you having to write any special code to handle it. And not just the gentle seasonal changes in demand that a retail business might experience but also sudden, dramatic surges in demand caused by your app going viral.

With this...