Best of Practicing Ruby (Book Edition) by Gregory Brown et al @ Yuki & Moto Press

Hello, I put together a new (free online) book titled Best of Practicing Ruby (Book Edition) @ the Yuki & Moto Press Bookshelf that collects the best articles from the practicing ruby series headed by Gregory Brown with guest chapters by Luke Francl, Magnus Holm, Aaron Patterson, Solomon White and others. Topics include: A minimal HTTP server - Event loops demystified - Parsing JSON the hard way - Tricks for working with text and files - Working with binary file formats - and much more. Happy hacking. Happy reading. Cheers.

Ruby 2.5 introduces FrozenError class

simple-admin v0.2.0-alpha released

simple-admin is an efficient and convenient framework for creating admin dashboards in an instant. Is a new way to customize your admin panel, demo.

Awesome Ruby Meetups in Europe, America (North • South), Africa, Asia, Pacific

Hello, I’ve updated the awesome ruby meetups page @ Planet Ruby. For (easier) updating every contintent has now its own page - Europe • America - North / South • Asia • Africa • Pacific/Oceania. Updates welcome :-). Note: The online version is an all-in-one page again, see Awesome Ruby Meetups. Happy hacking together. Cheers.

High Performance GPU Computing with Ruby

by Prasun Anand — [Video link]

Updated I Love Ruby

Hello People, have updated my Ruby book I Love ruby. Its a minor update where online resource section was updated. Please grab it here

Ruby on Rails & RSpec - base test method everyone should know

Mostly, writing a spec you would like to stub classes used in a class that you are testing. We don’t want to hit the database if it’s not needed. Read more at

What's Up in 2018/1? - Ruby Conferences & Camps from Around the World

Hello, I’ve started a new calendar site @ Planet Ruby. The idea is to publish monthly updates. What’s Up in 2018/1? - Ruby Conferences & Camps in January 2018 from Around the World. Cheers.

Event-Driven Microservices with RabbitMQ and Ruby

While event sourcing as an architectural pattern is useful to understand, it is not commonly used when starting a new project or service, which generally start their life as simple CRUD applications. Event sourcing works best when chosen as a top-level architecture for a new service from the start. Learn how to implement Event-Driven Microservices with RabbitMQ and Ruby

Build your own Ruby on Rails validations and use them like the default ones

Sometimes built in validations are not enough so we have to write our own validation rules. Because of this, our models can become fat really quick so the best idea to avoid it is to extract validation logic to separated classes. Such approach makes the code more clean, isolated and reusable -

This Is Not the Type You're Looking For (Exceptional Creatures)

Ruby’s TypeError is raised when encountering an object that is not of the expected type. TypeError appears in many other places, such as when converting one type to another using built-in conversion functions like Integer() and Hash(). Check out an example of using TypeError in some Ruby code.

Tutorial: deploying your Rails app via AWS Fargate

AWS Fargate lets you run Docker containers without managing infrastructure. Learn how to deploy your Rails app via AWS Fargate in this step-by-step video tutorial and blog post.

bootstrap_form 4.0 release planned for 2018

The bootstrap_form gem makes it easy to build beautiful forms with Bootstrap styles using the built-in Rails form helpers. The project has been around for several years and has over 1MM downloads. This year, after a brief hiatus, we are revamping bootstrap_form to support Bootstrap v4 and planning a big release. If you use bootstrap_form today, take a look at our roadmap to 4.0. We are always happy to welcome new contributors!

How to Speed Up Assets Precompilation Time in Ruby on Rails App

Every Rails developer know that asset loading may be really time-consuming. Here are some useful tips on how to speed it up:

Some notes on viewing migration SQL without running the migration

Rails 5.2 supports descending indexes for MySQL

Building an App That Makes It Easy to Learn Japanese Characters (Rails & ReactJS)

A few months ago, I started learning Japanese for fun. I started with Duolingo app, but my smartphone had just died and I had to continue learning from my laptop. Unfortunately, it wasn’t possible…

Ruby (and Rails) Conferences in 2018 Around the World - What's Upcoming in 2018?

Hello, trying to collect all ruby (and ruby on rails) conferences (and camps) around the world in 2018. What’s upcoming in 2018? See the events page at planet ruby. Anything missing? Updates welcome. Cheers.

Compiling ruby - code and the presentation

I was interested in how the bootsnap gem works and found this Github repo.

The most important Ruby gems for testing

Test faster, better and easier your Ruby on Rails app with 4 most useful gems. Do you already use them? READ MORE

Private Attribute Reader

Utility gem to easily declare private attribute readers in the same way you currently declare attr_reader [more inside]

My Notes about a Production-grade Ruby on Rails Deployment on Google Cloud Kubernetes

I’ve been learning and managing a Kubernetes Engine deployment on Google Cloud. I shared some bits in this blog post and would love to have insights and suggestions as well.

Design Patterns in Ruby: Strategy Pattern

Design patterns can be powerful conceptual models for thinking about how to solve problems in software development. I wrote about implementing the Strategy Pattern in Ruby, using Devise/Warden as a practical example. [more inside]

The Definitive Guide to Loops in Ruby

There are many ways to write a Ruby loop. How many do you know? In this article you will learn how to use methods like times, each_with_index & the while keyword.

Ruby 2.5 adds Hash#transform_keys method