JS Nation

I’m attending JSNation – the main JavaScript conference of the year. You may join me there for free with 10k other JS engineers and 40+ great speakers. Just follow this badge. 

#javascript

JSNation 2023

Matteo Collina

Build and Deploy a Backend With Fastify & Platformatic

JSNation 2025

Node.js continues to thrive despite claims of its decline. We'll debunk myths, highlight recent enhancements, and demonstrate its robust performance in today's tech landscape. The talk will cover Node.js's role in server-side programming and cloud-native applications, community contributions, integration of modern JavaScript features, and influence of emerging technologies. We'll conclude by projecting Node.js's bright future and growth areas in the evolving tech world.

The State of Node.js 2025

Node Congress

Node Congress 2024

Undici, the next-generation HTTP client built by the Node.js Core team, powers Node.js core fetch(). Let’s dig into how its internals, discovering how to work with Dispatchers, Agents, and Pools. Last but not least, we’ll even do some magic.

Deep Dive into Undici

TS Congress

TypeScript Congress 2023

How do you generate types dynamically? How do you write a script that creates some typescript code? The approach most people would recommend is to use Abstract Syntax Tree manipulations. I was working on a deadline to implement types for our OpenAPI client, and I would have missed our release window. I needed something different and easier to build. Luckily, a friend recommended me a library I didn't know: code-block-writer. I fall in love with it at first sight.

Generating types without climbing a tree

Platformatic allows you to rapidly develop GraphQL and REST APIs with minimal effort. The best part is that it also allows you to unleash the full potential of Node.js and Fastify whenever you need to. You can fully customise a Platformatic application by writing your own additional features and plugins. In the workshop, we’ll cover both our Open Source modules and our Cloud offering:- Platformatic OSS (open-source software) — Tools and libraries for rapidly building robust applications with Node.js (https://oss.platformatic.dev/).- Platformatic Cloud (currently in beta) — Our hosting platform that includes features such as preview apps, built-in metrics and integration with your Git flow (https://platformatic.dev/).  In this workshop you'll learn how to develop APIs with Fastify and deploy them to the Platformatic Cloud.

What's an ORM? An Object-Relational Mapping tool (ORM) is a library to map a SQL table to a Class. In most cases, ORMs force the users to structure their code to have Model objects that include both data access and business logic. Once upon a time, I did several projects using ORMs as I followed the common belief that they would simplify the development and maintenance of projects. I was wrong. ORMs are often a hurdle to overcome for the most complex part of a project. As the next stop of my journey, I recommended people use the native languages of their databases, e.g., SQL. This works great for the most part, but it creates quite a struggle: there is a lot of boilerplate code to write that can be pretty tedious. I was wrong, again. Today I'm presenting you Platformatic DB.

I Would Never Use an ORM

As developers we stand on the shoulders of giants, and it can be helpful to take a look at the past to gain a better perspective. In this talk we’ll briefly explore the past decade of backend development and architectural patterns. We’ve often ditched technologies in an attempt to make the developer experience frictionless. However we sometimes forget what we can learn from “the good old days”. What are you building: a monolith, a microservices system or something in between? A shift in how we see things can help us keep moving forwards.

APIs are Evolving. Again.

Node Congress 2023

Have you ever struggled with designing and structuring your Node.js applications? Building applications that are well organised, testable and extendable is not always easy. It can often turn out to be a lot more complicated than you expect it to be. In this live event Matteo will show you how he builds Node.js applications from scratch. You’ll learn how he approaches application design, and the philosophies that he applies to create modular, maintainable and effective applications. Level: intermediate

Node.js Masterclass

In my journey through Nodeland, I saw most teams struggling with the free-form nature of Node.js development: there are no guardrails for maximum flexibility. Yet, not all paths offer a smooth ride. How to build applications that are well-organized, testable, and extendable? How could we build a codebase that would stand the test of time? In this talk, we will explore how to avoid the trap of Singletons to create robust Node.js applications through the use of Fastify plugins: we will build a modular monolith!

Building a modular monolith with Fastify

Node Congress 2022

Fastify is an HTTP framework for Node.js that focuses on providing a good developer experience without compromising on performance metrics. What makes Fastify special are not its technical details, but its community which is wide open for contributions of any kind. Part of the secret sauce is Fastify plugin architecture that enabled developers to write more than a hundred plugins. This hands-on workshop is structured around a series of exercises that covers from basics "hello world", to how to structure a project, perform database access and authentication. <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>

Fastify Workshop

GraphQL Galaxy

GraphQL Galaxy 2021

How would you implement a performant GraphQL cache? How can we design a good algorithm for it? Is there a good Open Source solution that is efficient, scalable and easy to deploy? How is the caching key computed? What about cache invalidations? Would it be possible to deduplicate resolver execution? This might be seen as daunting but in reality is all code and algorithms.In this talk we are going to walk through a GraphQL caching system that we have developed for Mercurius - one of the fastest GraphQL servers for Node.js. <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>

GraphQL Caching Demystified

Node Congress 2021

Fastify is an HTTP framework for Node.js that focuses on providing a good developer experience without compromising on performance metrics. What makes Fastify special are not its technical details, but its community which is wide open for contributions of any kind. Part of the secret sauce is Fastify plugin architecture that enabled developers to write more than a hundred plugins.This hands-on workshop is structured around a series of exercises that covers from basics "hello world", to how to structure a project, perform database access and authentication. <a href="https://github.com/nearform/the-fastify-workshop" target="_blank">https://github.com/nearform/the-fastify-workshop</a> <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>

Learn Fastify One Plugin at a Time

The Node.js HTTP client is a fundamental part of any application, yet many think it cannot be improved. I took this as a challenge and I’m now ready to present a new HTTP client for Node.js, undici, that doubles the throughput of your application The story behind this improvement begins with the birth of TCP/IP and it is rooted in one of the fundamental limitations of networking: head-of-line blocking (HOL blocking). HOL blocking is one of those topics that developers blissfully ignore and yet it deeply impacts the runtime experience of the distributed applications that they build every day. Undici is a HTTP/1.1 client that avoids HOL blocking using keep-alive and pipelining, resulting in a doubling of your application throughput. <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>

Can We Double HTTP Client Throughput?

JSNation Live

JSNation Live 2020

In my journey through nodeland, I always wonder about the cost of my abstractions. I started a journey to write an HTTP framework with extremely low overhead, and Fastify was born. With its ability to reach an astonishing 90k requests/sec, Fastify can halve your cloud server bill. In this talk, I will walk you through the basics of the framework: how to route requests, write tests, and use the plugin system. <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>

1, 2, 3... Fastify!

JSNation Live 2021

Almost every developer thinks that adding one more log line would not decrease the performance of their server... until logging becomes the biggest bottleneck for their systems! We created one of the fastest JSON loggers for Node.js: pino. One of our key decisions was to remove all "transport" to another process (or infrastructure): it reduced both CPU and memory consumption, removing any bottleneck from logging. However, this created friction and lowered the developer experience of using Pino and in-process transports is the most asked feature our user.In the upcoming version 7, we will solve this problem and increase throughput at the same time: we are introducing pino.transport() to start a worker thread that you can use to transfer your logs safely to other destinations, without sacrificing neither performance nor the developer experience.