Book Image

Accelerating Server-Side Development with Fastify

By : Manuel Spigolon, Maksim Sinik, Matteo Collina
Book Image

Accelerating Server-Side Development with Fastify

By: Manuel Spigolon, Maksim Sinik, Matteo Collina

Overview of this book

This book is a complete guide to server-side app development in Fastify, written by the core contributors of this highly performant plugin-based web framework. Throughout the book, you’ll discover how it fosters code reuse, thereby improving your time to market. Starting with an introduction to Fastify’s fundamental concepts, this guide will lead you through the development of a real-world project while providing in-depth explanations of advanced topics to prepare you to build highly maintainable and scalable backend applications. The book offers comprehensive guidance on how to design, develop, and deploy RESTful applications, including detailed instructions for building reusable components that can be leveraged across multiple projects. The book presents guidelines for creating efficient, reliable, and easy-to-maintain real-world applications. It also offers practical advice on best practices, design patterns, and how to avoid common pitfalls encountered by developers while building backend applications. By following these guidelines and recommendations, you’ll be able to confidently design, implement, deploy, and maintain an application written in Fastify, and develop plugins and APIs to contribute to the Fastify and open source communities.
Table of Contents (21 chapters)
Part 1:Fastify Basics
Part 2:Build a Real-World Project
Part 3:Advanced Topics

Understanding validation and serialization

Fastify has been built with a focus on the developer’s experience, and on reducing the developer effort needed to draft a new project. For this reason, Fastify has built-in features to reduce the following burdens:

  • Validating the user’s input
  • Filtering the server’s output

The aim is to find solutions for and prevent the most common security attacks, such as code injection or sensitive data exposure. The answer is declaring the expected input and output data format for every route. Therefore, the validation and serialization processes have been introduced into the framework by design:

Figure 5.1 – The Validation and Serialization phases

Figure 5.1 – The Validation and Serialization phases

This preceding diagram shows the request lifecycle steps’ macro architecture, which you read about in detail in Chapter 4.

The Validation phase happens when the HTTP Request comes into the server. It allows you to approve...