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

Managing distributed logs

Fastify has simplified our job many times, and it always has an excellent way to complete complex tasks. This is the case for distributed logs. By distributed records, we mean the situation of a single client’s HTTP request that leads to multiple requests across our application or the whole system. In the previous Enhancing the default logger configuration section, we learned how to add context to the Fastify logs, but how can we connect all those messages to a single HTTP request? And what about an external API call to another Fastify server? To do this, we must configure the reqId request-id properly.

The request-id is the identifier across your entire system to be able to trace all the logs generated by a single HTTP request. In Fastify, you can’t easily remove the request-id field from the output message, so whenever you use request.log or reply.log, you will get the reqId property.

We can customize the request-id field name and value...