Luiz Kowalski :: dev blog

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ruby on rails

A collection of 3 issues

Using concurrent-ruby in a Rails application

Concurrency in Ruby is still a gray zone for many developers. If you know anything about concurrency, you probably know that Ruby is thread-safe by default because the Global VM Lock only uses one thread and you are bounded by it. But does that mean that Ruby can't scale? GVL

Validating Mandrill webhook signature on Ruby on Rails

I'm writing this post partially because I couldn't find anything exactly like this and to keep a log for me, in case I have to deal with this once again. Since Mandrill does not provide a way to authenticate their webhooks using, for example, a user/password combination, they came

Encapsulation in Ruby on Rails

In Object-Oriented Programming, encapsulation is one of the fundamentals concept. Understand encapsulation will help you write concise and easy to maintain code. But what exactly is encapsulation? If you search on the Internet you might find something like this: encapsulation is hide the internal representation or state of an object.