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

Technical requirements

As reported in the previous chapters, it will be necessary to have the .NET 6 development framework available; you will also need to use .NET tools to run an in-memory web server.

To validate the functionality of cross-origin resource sharing (CORS), we should exploit a frontend application residing on a different HTTP address from the one where we will host the API.

To test the CORS example that we will propose within the chapter, we will take advantage of a web server in memory, which will allow us to host a simple static HTML page.

To host the web page (HTML and JavaScript), we will therefore use LiveReloadServer, which you can install as a .NET tool with the following command:

dotnet tool install -g LiveReloadServer

All the code samples in this chapter can be found in the GitHub repository for this book at