See the full list of screencasts to learn from
Tutorials to help you setup Rails on your development and deploy to production
A lot of Ruby code is "magic". We'll explain the magic and see how it works using the powerful tools Ruby gives us.
Accept subscription and one-time payments with Stripe in your Rails apps
Expert advice on keeping Rails apps organized and fast.
Cheap, easy hosting for Ruby and Rails apps.
Launch your product business way faster with our SaaS template.
Find your next Ruby on Rails Job.
One fantastic way to improve Rails performance is by using Etags to help the browser keep track if a page has changed or not. This can help Rails skip rendering views entirely and save lots of time.
Contribute to Rails by discovering something you could improve and learning how to add features to Rails
Webpack bundles can be confusing as to what actually ships in production. Using the bundle analyzer plugin, we can visualize and see exactly what libraries and files are taking up what space.
Keeping track of a user's last read timestamp for each chat room is straightforward, especially when we use Stimulus.js to update it from the client side.
Using the Intersection Observer API, we can refactor our infinite scroll example to be much more efficient and simpler to use
Sometimes you might want to keep track of all classes a module was included in. We can do that with a couple nifty tricks to make this work with both regular Ruby modules and Rails concerns.
Testing file uploads can be tricky, but Shrine makes both file uploading and testing a lot easier than you might expect.
Learn how to test ActiveStorage file uploads and create fixtures with ActiveStorage attachments
If we want to add realtime tracking of which users are online, we can use active websocket connections through ActionCable to keep track.
Mocks are a handy tool for writing tests in Ruby. You can use them to fake an object and verify that the correct methods were called against it. Perfect for testing a method that integrates closely with another class or module.
Test stubs are very handy when you want to mock out the response to a method call. This allows your tests to be more reliable and skip long running or unnecessary method calls.
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.
Testing ActionCable authentication with Devise is pretty easy, especially when we build our own helpers to stub out Warden
Rails provides several really useful test helpers for ActionMailer so we can quickly iterate on our design, test that our code queues up the right emails, and make sure our emails contain the right content.
Testing integrations with external APIs in your Rails app can be hard. You don't know what requests are being made (or even the responses), so how can you properly mock them out? VCR to the rescue.
Learn how to write integration tests in Rails to test controllers and actions
Join 66,029+ developers who get early access to new tutorials, screencasts, articles, and more.
We care about the protection of your data. Read our
Icons by Icons8
© 2022 GoRails, LLC. All rights reserved.