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Rails uses the Ruby subscript operator to implement versioning with ActiveRecord Migrations. We'll learn how this works and implement it from scratch to see how it all ties together
In this episode, we will look at an option for beginning to refactor your code architecture to use modules as a first step to potentially extracting a new class.
In this episode, we look at how to get started making utility programs with Ruby similar to the built in cat and grep programs.
Debugging Ruby with the Caller method
In this follow-up episode on building your first Ruby gem, we look at setting up version control, adding a basic testing setup, and adding a basic GitHub action for a CI (continuous integration) setup. With these pieces in place, we should have a solid fo
In this episode, we will create our first Ruby Gem. It will be a very simplified gem that adds a method to the built-in Ruby Array class. The goal is to understand the core pieces of what is needed to create a gem that we can share with the community.
In this episode, we look at how to make a Railsbyte template. Specifically, we will be making a Railsbyte that will set up our application for deployment with Render which will allow us to be able to reuse the template on any application that we would lik
Errors can come up in many different ways. This episode, we'll look at how we can improve error handling in the noticed gem to cleanly handle issues with ActiveRecord without negatively affecting
MQTT is a message protocol for Internet of Things devices. It's very similar to pubsub where you can broadcast and subscribe to different topics. Learn how to send messages to an MQTT broker in this tutorial.
Learn how to use a PMS5003 air quality sensor with Ruby on the Raspberry Pi. We'll use this to monitor air quality and gather data.
In this episode, we will be looking into Ruby's eigenclasses or singleton classes. We will first look at singleton methods and then how we can access the eigenclasses of objects.
In this video, we will explore how the concepts we looked at in "Flattening Scopes in Ruby" are used in Rails by taking a look at the assert_difference method. We will walk through how the method works while taking note of where the concepts are applied.
In this video, we will look at how to use blocks and bindings in Ruby to pass local variables across different scopes.
Using ensure with blocks is extremely helpful for cleaning up things. We'll learn how to use ensure in Ruby for cleaning up open files as well as temporarily changing values for requests or test stubs.
Designing code for composability allows you to make code more testable, flexible, and easier to adapt in the long term. We'll look at how I recently refactored the Receipts gem so that you can easily customize receipts and still use built-in components.
How do we test API requests in a Rubygem to make sure that we're integrating correctly with our backend? We'll learn how to use stubs to fake out the request and test our code without any network requests.
The core of any API wrapper is the actions for create, read, update, and delete. We'll implement the CRUD for a resource so you can see how to do it and wire up everything together that we've built so far.
The core of an API wrapper Rubygem is defining the Resource endpoints so developers can make requests cleanly. We'll also learn how to handle pagination for endpoints that return a list of results.
When you receive a JSON response from an API endpoint, it's really easy to convert this to a Ruby hash. But hashes don't feel very Ruby-ish when you're working with them and you can't add methods and treat them like objects.
Last episode, we built a multi-threaded HTTP server from scratch using Ruby. This week, we'll enhance our web server by adding Rack and Rails support.
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