Ruby On Rails

Tutorials

How to Measure Ruby App Performance with New Relic

How to Measure Ruby App Performance with New Relic New Relic is a great tool for getting the overview of the performance bottlenecks of a Ruby application. But it's pretty extensive - where do you start?It’s 12pm on a Monday. Your boss walks by: “The site feels…slow. I don’t know, it just does.” H...

Malloc Can Double Multi-threaded Ruby Program Memory Usage

Malloc Can Double Multi-threaded Ruby Program Memory Usage It’s not every day that a simple configuration change can completely solve a problem.I had a client whose Sidekiq processes were using a lot of memory - about a gigabyte each. They would start at about 300MB each, then slowly grow over the course ...

Removing a Database Index from Rails Console

Removing a Database Index from Rails Console If you're familiar with Rails, you might be reading this and wondering, "Why would I ever need to remove a database column from console? Shouldn't I be doing this through a proper Rails migration?" Well, you're right! This should probably be done ...

Rails API with a frontend built in React, Part I.

Rails API with a frontend built in React, Part I. When I was learning react I was kind of disappointed because I could not get a good tutorial on how to integrate rails with react. The only ones I found were using everything inside of rails(building a regular based rails app with webpacker and re...

Messages on Rails Part 3: RabbitMQ

Messages on Rails Part 3: RabbitMQ RabbitMQ is a general purpose message broker supporting multiple protocols, yet, we are going to focus mostly on AMQP, which is the one that is the most typically used. It implements a smart broker/dumb consumer model. Unlike Kafka, it means that ...

Understanding Rails Eager-Loading

Understanding Rails Eager-Loading Note: this is an article that I posted a few years ago on Medium. I'm reposting here as it's likely to be more useful to someone that way.If you're like me, nothing makes your eyes glaze over faster than a wet, steaming pile of machine-generated S...

No One Cares — Sinatra, a Ruby micro-framework

No One Cares — Sinatra, a Ruby micro-framework Sinatra, as a framework, lets you CRUD within a RESTful structure, thus Creating, Reading, Updating, and Deleting data via a web browser. It does this through standardized RESTful conventions like GET and POST. With Sinatra, you can make things li...

Rails Setup on Ubuntu 19.04 Disco Dingo

Rails Setup on Ubuntu 19.04 Disco Dingo Around this time last year we soft released our first version of Rivet, a marketplace designed to find and activate resources for the development of creative practices.Being the tiniest of startups, our entire budget went into this launch. So with...

Simulating Classes with Closures in Ruby

Simulating Classes with Closures in Ruby Lets say you want to build a very simple counter program. The counter program can do the following:Get the current value of the counter.Increment the counter.Decrement the counter.This is the essence of what most classes do: retrieve and modify da...

Let's Build with Ruby on Rails: Extending Devise Series – Confirmation Emails

Let's Build with Ruby on Rails: Extending Devise Series – Confirmation Emails Continuing my Let’s Build with Ruby on Rails – Extending Devise series I take a look at adding confirmation emails to a given Ruby on Rails application.Download the source codeDownload the Kickoff Tailwind Template I reference in this tutorial (op...

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