[necovek]

> gateway API (aka BFF)

A gateway API is an API that gates other APIs. A BFF is a gateway API used for a particular purpose, clearly identified by the name ("backend for frontend").

Thus, they are not the same: one is a wider term, another is a focused implementation of that concept.

[patmorgan23]

And you can have multiple Backeds for Frontends different types of clients (i.e. browser, mobile)