What is "baas"

The BaaS is "Backend as a Service", where there is an API that allows you to store data and even process scripts for you, without the need to create a server application for this.

It enables mobile and web developers to completely abstract server-side infrastructure (server side Infrastructure). Developers can assemble the necessary building blocks and only write the code that connects them. This allows developers to focus on user experience ( front-end U/X) instead of dealing with backend infrastructure and coding.