How to build a complete, real-world application from scratch with Ruby on Rails step by step.
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System tests allow you to use a browser for testing your Rails app including Javascript
Today we're refactoring Andrew Mason's GitHub Action that runs Rubocop against your repository. We'll pull out some concepts, remove conditionals, and use several other techniques to clean up the code.
We can use timestamps in our database to track of online users in your Rails
An updated version of our Group Chat series using Webpacker, ActionCable, Stimulus.js, and modern Javascript to build a very clean version of realtime group chat in Rails
Sometimes you may need to wrap and reraise an exception. Ruby 2.1+ makes this easy by letting us raise a new error, pass in the old one, and automatically assigns the exceptions "cause" which is the original exception.
Custom ActiveRecord validations are easy to make and they're implemented exactly the same way as the built-in Rails validations. It's super handy to be able to add nice, clean validations that you can repeat throughout your apps.
Learn how to inspect gems and add mark as read functionality to Mailboxer
Tracking unread messages in chat so that we can provide a nice user experience for our users
Transcode videos in the background using Shrine
Learn how to handle inbound emails in your Rails application and use them to create comments in your app
Improve the design of our Vue.js & Rails clone of Trello by making lists more visually distinct and setting up horizontal scrolling
Learn how to authenticate with an API using OAuth and Doorkeeper
WebMock is a fantastic way to stub out and mock your HTTP requests. It will actually throw an exception in your test suite when an HTTP request is made so that you know when you're hitting an external API that you haven't stubbed out correctly.
Learn how to test Active Job in your Ruby on Rails application
The browser has a built-in Geolocation API that you can use to get the user's location (with permission) in Stimulus and use it with Rails
In this episode, we will look at how to refactor an existing dynamic nested attributes form that uses Stimulus to instead leverage the ability to now make GET requests with Turbo.
Learn how to use Vagrant to set up a headless virtual machine for Ruby on Rails development
See how to add exceptions to recurring events with the ice_cube gem
Learn how to send emails to a local SMTP server called Mailcatcher for testing and designing emails
Learn how to add support for Accelerated Mobile Pages (AMP) from Google to Ruby on Rails in this tutorial
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