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As Rails developers, we often focus on writing clean, efficient Ruby code. However, as the application grows optimizing database performance is equally crucial for creating responsive applications. One of the most powerful tools in our arsenal for database optimization is indexing. Here I will talk about PostgreSQL indexing from a Rails developer’s perspective. The query plan generated by EXPLAIN will help us to make informed decisions about index creation, ensuring our database queries run as efficiently as possible.

Performance issues in the PostgreSQL layer usually start to manifest only when your app reaches a certain scale. In this blog post, I'll discuss easy-to-miss database config tweaks and common problems that I've encountered in multiple Rails projects.

Let's look at a few readily available techniques and tools to gather and investigate issues in your Ruby or Rails app.

Migrating the Miru app from Sidekiq to SolidQueue eliminated the dependency on Redis, reducing costs by utilizing database for job storage.

Rails 7.2 uses the foreman gem for process management, which has serious limitations when it comes to interactive debugging. The run-pty Node package is an excellent alternative.

We'll explore the basics of HTTP caching, cache layers, configuration, and how to cache in Rails.

This article introduces the Ruby test profiling toolbox called TestProf.

Nested forms with Rails can now be done without using any third-party gem! Turbo Stream’s is all you need to add nested fields to any form you want.

Staff+ engineers have years of technical knowledge stored away, but often have their skills overlooked or undermined.

I’ll explain the differences and benefits of Turbo Streams vs Turbo Frames in this HTML-first, test-driven tutorial. Only one line of JavaScript needed!

Snake was one of my favorite games to play on my Nokia cell phone circa 2007, so I decided to rebuild it with modern frontend web tooling.

How to upgrade Ruby on Rails from 7.1 to 7.2, including the deprecations, required configurations, application code changes, and webpacker API changes.

Find out how to test accessibility in your Rails app to make it usable for everyone. Learn simple tools and methods to improve your app’s inclusivity and user experience.

A place to learn Ruby on Rails

Read about the tools, techniques, mindset that got our client 5X faster tests.

We explore several solutions to a common Hotwire problem.

The inspect method on Active Record models returns a string including the model’s class and a list of all its attributes and their values. In Rails 7.2, you can configure which attributes are included in the output of inspect. In this post, I’ll discuss the performance issue that led me to implement this feature. I’ll also talk about how this feature can be used to improve developer experience.

Handling remote data state is one of the most common things we do in React apps, so it makes sense to carefully consider how we model it.

Learn about JavaScript’s FileReader interface to preview user images before they are upload with Hotwire/Stimulus.

After searching for a simple, interactive, and easy-to-use tool to document the APIs I build with Rails, and not finding the right one, I decided to create my own: OasRails.

The daily stand-up was intended to help teammates remove any blockers to commitments. But at many companies, stand-ups have devolved into tedious one-sided status reports.

Rails added the filter option to in_order_of to prioritize the specified values without filtering the results

Rails 8.0 adds a generator that streamlines the process of adding basic authentication to Rails applications

Test doubles likes mocks and stubs can help us with isolating code under test with the rest of the system. Here’s how to mock in Minitest.

A conversation with the CTO and Co-founder of Clara, a recent thoughtbot client, about the strategy behind their decision to build their startup product with Rails and Hotwire.