Creating DTOs

Before moving to the endpoint related to book creation, we must first understand data transfer objects (DTOs). In this section, we’ll delve into the role of a DTO, explain its importance, and define a valid DTO that will be useful for creating and updating book entries in our system.

Scenario: Creating a student

Consider a scenario within a student management system. It starts with the basics. A StudentsService exists with a createStudent method. This method accepts two parameters: fullName and age, and returns a string message upon creating a student.