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

Building the authentication layer

Since we need to add new non-trivial functionality to our application, we need to implement mainly two pieces:

  • An authentication plugin to generate tokens, check the incoming requests, and revoke old or not used tokens
  • A bunch of new routes to handle the registration, authentication, and life cycle of the tokens

Before jumping directly into the code, we need to add one last note. In this chapter’s code snippets, we will use a new data source called userDataSource ([1]). Since it exposes only createUser ([3]) and readUser ([2]) methods and the implementation is trivial, we will not show it in this book. However, the complete code is in the ./routes/auth/autohooks.js file inside the GitHub repository.

Since we must implement both, we can add the authentication plugin first.

Authentication plugin

First, create the ./plugins/auth.js file inside the project’s root folder. The auth.js code snippet shows the implementation...