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

Many systems can help us test the performance of a framework.

We can measure how many requests per second one application can handle compared to another, assuming equal application load. In this case, we are talking about load testing.

To put the minimal APIs on the test bench, we need to install k6, the framework we will use for conducting our tests.

We will launch load testing on a Windows machine with only .NET applications running.

To install k6, you can do either one of the following:

  • If you’re using the Chocolatey package manager (, you can install the unofficial k6 package with the following command:
    choco install k6
  • If you’re using Windows Package Manager (, you can install the official package from the k6 manifests with this command:
    winget install k6
  • You can also test your application published on the internet with Docker:
    docker pull loadimpact/k6...