DTO: Live Fast, Burn Bright

DTO is one of the simplest design patterns. But in the real world, the acronym DTO refers to different kinds of objects. In this talk we will consider why DTOs are needed, where they can be used, and what tools are available for working with them. Let's find out how many transformations data can go through on the way from the database to the API and back, what are the features of data mapping using different structures and how many types of projections there are in ORM.