I’m writing this short article to clarify a few questions about Active Record vs Ruby methods to manipulate data coming from the database. I'll start with some straightforward cases. Let's suppose you're looking for a list of emails from our user accounts. There are several ways you can achieve the…

A shortlist of actionable advice on how to get rid of N+1 Queries in a Rails application This article is a part of the series: Guide to Rails Performance ⚡️ What's an N+1 query? 🤷‍♂️ An N+1 query is a type of performance issue that often occurs when using an object-relational mapper (ORM) such as…

How we stopped spamming doctors with toast error messages. At Doctolib, we're in a constant sprint to deliver more value to doctors, so we're always on the watch for their suggestions, but also complaints. How we spotted the issue? Together with Romain Choquet, our Principal Engineer, and Marine Diot, Product Manager, we recently composed a…

A Doctoliber's guide to investigating (and fixing) React and Rails performance issues while keeping users in mind. This is a series of articles written and maintained by our Engineering team at Doctolib so most of the investigation processes and tooling will be directly related to our React & Rails tech…

If you’re here, I’m assuming you’re working on a Rails project and using VSCode. So I’m going go to straight to the point, and directly list the required changes to make auto-formatting work for .html.erb files on VSCode. Install dependencies 🧩 All you need is to run one of the following commands. You…

Step-by-step guide on how to set up Google Auth for a Rails app. If you came here, I'm assuming you already have a Rails application that is up and running and that you're using Devise for authentication. …

A short guide about my learnings and the things to watch out for 🕵🏻‍♂️ Step 1: Migrate to v4 by replacing your imports Most of the time, the migration should be straightforward. In these cases, all you need is to replace the imports to use the new version of React Query, as done below.

Entenda como criar seu site em apenas 2 minutos. Totalmente grátis. Hoje em dia, todo negócio ou indústria possui alguma forma de transação online. Seja a captura de um contato, a venda de um produto, ou uma mensagem via WhatsApp. Independente do contexto, qualquer negócio que se preze possuirá seu…

There are two main steps needed to create Jira tickets programmatically. We'll need to (1) generate a CSV file with all the required information, then (2) import the file via the Jira interface. For the most basic cases, this can be a very simple task. So let's assume you only…