Use Syntax Tree to auto-format Ruby on Rails files on Visual Studio Code. Auto code formatters like prettier bring several benefits to the table. They save you valuable time by automatically formatting your code, eliminating the need for manual formatting. They ensure code is consistent and readable code across your…

Use ActiveSupport methods and improve your ruby coding experience. Ruby and Rails are not the same thing 🫢 People often get confused between Rails and Ruby, and it’s understandable why. Rails is a web application framework built using the Ruby language, so they go hand in hand. …

Avoid refetching expensive queries by feeding sub-queries with initial data. This article will be helpful for you if: you have an expensive index query, i.e., …

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. …