The Problem: Traditional Backend Models

Before we look at the Backends for Frontends pattern, we need to understand the problem it was created to solve.

One Backend for Every Client

In traditional backend models, one backend serves every frontend: desktop, mobile, and any other client application. It offers the same set of APIs to all of them, whatever each one actually needs.

Think of a scenario where a desktop application and a mobile application are accessing the same API from a traditional backend. The desktop app with its high processing power and larger display can handle a substantial amount of data