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

What is dependency injection?

For a while, .NET has natively supported the dependency injection (often referred to as DI) software design pattern.

Dependency injection is a way to implement in .NET the Inversion of Control (IoC) pattern between service classes and their dependencies. By the way, in .NET, many fundamental services are built with dependency injection, such as logging, configuration, and other services.

Let’s look at a practical example to get a good understanding of how it works.

Generally speaking, a dependency is an object that depends on another object. In the following example, we have a LogWriter class with only one method inside, called Log:

public class LogWriter
    public void Log(string message)
          (message: \"{message}\")");