Ruby On Rails

Tutorials

How to Test Ruby Code That Depends on External APIs

How to Test Ruby Code That Depends on External APIs Few things are more frustrating than slow, flaky test suites. You're ready to deploy, wait 20 minutes for CI to run, only to find that a test failure in code you've never touched is blocking you. You dig into the source and find the problem: an ex...

Release 2.3.0

Release 2.3.0 Fast, Nimble PDF Writer for Ruby. Contribute to prawnpdf/prawn development by creating an account on GitHub.This is release includes one new exiting feature: OTF fonts support. You can use them exactly as you'd use TTF fonts. Thanks for this to @c...

How I write tests for my Rails (API) apps

How I write tests for my Rails (API) apps I use RSpec for writing tests but my approach would have been similar with minitest as well. For every new API endpoint, I first write a simple request spec with the expectation of successful HTTP response.Request specs are RSpec's way of writing ...

How to Dockerize a Sinatra application

How to Dockerize a Sinatra application Docker is difficultIn my experience, Dockerizing a Rails application for the first time is pretty hard. Actually, doing anything with Docker seems pretty hard. The documentation isn’t that good. Clear examples are hard to find.Dockerizing Rails is...

Deploying a Ruby application - Apache - Passenger Library

Deploying a Ruby application - Apache - Passenger Library This guide teaches you how you can deploy your app to a server. This guide assumes that you have already done the following, and that you know how to do them:Passenger and Apache are already installed on the server.You have already transferred the...

Ruby Method Overloading

Ruby Method Overloading Method Overloading is a programming language feature that allows you to define multiple signatures (and implementations) of the same method.Ruby doesn’t have such a feature. It was a shocking discovery when I switched from Java.. a very long time ...

Loading Scripts From Classpath

Loading Scripts From Classpath JRuby, an implementation of Ruby on the JVM. Contribute to jruby/jruby development by creating an account on GitHub.In addition to the usual Ruby load path, JRuby also supports loading scripts from any jar file or system path added to the JVM's cl...

Painless Rails upgrades

Painless Rails upgrades Sooner or later your Rails application will require an upgrade of the framework itself. There are many reasons behind that. Bugs, incompatibility with modern libraries, or the worst: the version you use will no longer receive security updates. Liv...

Using Action Mailbox in Rails 6 to Receive Mail

Using Action Mailbox in Rails 6 to Receive Mail Sending mail from a Rails application has been covered by hundreds or thousands of articles, however, there is not a ton of articles about receiving, parsing and using the new ActionMailbox.The following is an excerpt from my book Build A SaaS App...

Sharing code with Ruby and Rails

Sharing code with Ruby and Rails Ruby and Rails provide many ways to share code between objects. If you don’t work in Ruby or a Rails application often, it can be hard to remember what each one does. Despite this, each of these tools serves a different purpose in a Ruby system’s ...

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