Book Image

Mastering Minimal APIs in ASP.NET Core

By : Andrea Tosato, Marco Minerva, Emanuele Bartolesi
Book Image

Mastering Minimal APIs in ASP.NET Core

By: Andrea Tosato, Marco Minerva, Emanuele Bartolesi

Overview of this book

The Minimal APIs feature, introduced in .NET 6, is the answer to code complexity and rising dependencies in creating even the simplest of APIs. Minimal APIs facilitate API development using compact code syntax and help you develop web APIs quickly. This practical guide explores Minimal APIs end-to-end and helps you take advantage of its features and benefits for your ASP.NET Core projects. The chapters in this book will help you speed up your development process by writing less code and maintaining fewer files using Minimal APIs. You’ll also learn how to enable Swagger for API documentation along with CORS and handle application errors. The book even promotes ideas to structure your code in a better way using the dependency injection library in .NET. Finally, you'll learn about performance and benchmarking improvements for your apps. By the end of this book, you’ll be able to fully leverage new features in .NET 6 for API development and explore how Minimal APIs are an evolution over classical web API development in ASP.NET Core.
Table of Contents (16 chapters)
Part 1: Introduction
Part 2: What’s New in .NET 6?
Part 3: Advanced Development and Microservices Concepts

Using Dapper

Dapper is an Object-Relational Mapper (ORM) or, to be more precise, a micro ORM. With Dapper, we can write SQL statements directly in .NET projects like we can do in SQL Server (or another database). One of the best advantages of using Dapper in a project is the performance, because it doesn’t translate queries from .NET objects and doesn’t add any layers between the application and the library to access the database. It extends the IDbConnection object and provides a lot of methods to query the database. This means we have to write queries that are compatible with the database provider.

It supports synchronous and asynchronous method executions. This is a list of the methods that Dapper adds to the IDbConnection interface:

  • Execute
  • Query
  • QueryFirst
  • QueryFirstOrDefault
  • QuerySingle
  • QuerySingleOrDefault
  • QueryMultiple

As we mentioned, it provides an async version for all these methods. You can find the right methods by...