Book Image

Accelerating Server-Side Development with Fastify

By : Manuel Spigolon, Maksim Sinik, Matteo Collina
5 (1)
Book Image

Accelerating Server-Side Development with Fastify

5 (1)
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

Reading the client’s input

Every API must read the client’s input to behave. We already mentioned the four HTTP request input types, which are supported by Fastify:

  • The path parameters are positional data, based on the endpoint’s URL format
  • The query string is an additional part of the URL the client adds to provide variable data
  • The headers are additional key:value pairs that pair information passing between the client and the server
  • The body is the request payload that contains the client’s data submission

Let’s take a look at each in more detail.

The path parameters

The path parameters are variable pieces of a URL that could identify a resource in our application server. We already covered this aspect in Chapter 1, so we will not repeat ourselves. Instead, it will be interesting to show you a new useful example that we haven’t yet covered; this example sets two (or more) path parameters: