One of the most popular performance indicator is the Speed Index. It directly reflects on your SEO and you probably want to monitor it. One of our client at Theodo runs a large marketplace. They sell around 3 millions items (Q1 2019), and serve more than 2 billion HTTP requests every month. We will…

Why we love NestJS We like NestJS at Theodo because we find it to be the most versatile and easy-to-use Node.js framework for fast, impactful projects. The majority of our frontends are built in React, so using NestJS allows us to leverage full-stack Typescript, helping bridge the gap between…

Event-driven architectures (EDA) gather several useful patterns to deliver maintainable code, handle asynchronous tasks and build reliable applications. As a developer at Theodo, I have been working with various companies to help them build great products. I frequently used event-driven…

We all know writing tests is important. Unit testing is now a standard in software development, sometimes we even write them before the code. Snapshot testing is becoming more and more common to check that the UI doesn't change unexpectedly. However, the dev community still has a long way to go with…

Welcome stranger! It is a pleasure meeting you. When I began using git, I didn’t really understand how it worked: I considered it as a riskier alternative to sharing code by good old reliable USB key. Now that I became more intimate with it, I use it everyday with confidence. In this article I'll…