Using Entity Framework
We can absolutely say that if we are building an API, it is very likely that we will interact with data.
In addition, this data most probably needs to be persisted after the application restarts or after other events, such as a new deployment of the application. There are many options for persisting data in .NET applications, but EF is the most user-friendly and common solution for a lot of scenarios.
Entity Framework Core (EF Core) is an extensible, open source, and cross-platform data access library for .NET applications. It enables developers to work with the database by using .NET objects directly and removes, in most cases, the need to know how to write the data access code directly in the database.
On top of this, EF Core supports a lot of databases, including SQLite, MySQL, Oracle, Microsoft SQL Server, and PostgreSQL.
In addition, it supports an in-memory database that helps to write tests for our applications or to make the development cycle...