Ruby On Rails

Tutorials

Ruby One Time Password library

Ruby One Time Password library A ruby library for generating and validating one time passwords (HOTP & TOTP) according to RFC 4226 and RFC 6238. ROTP is compatible with Google Authenticator available for Android and iPhone and any other TOTP based implementations. Many websit...

Idiosyncratic Ruby: Assignments In-Style

Idiosyncratic Ruby: Assignments In-Style The introduction of pattern matching in Ruby 2.7 brought us a new style of multi-assigning local variables: The pattern assignment, or, how you could also call it, the assignment in-style.After you have deactivated the warnings for experimental fe...

How to Improve ActiveRecord Performance with Subquery Caching

How to Improve ActiveRecord Performance with Subquery Caching Slow database queries are a common performance bottleneck for Ruby on Rails apps. Simplifying a complex query is often not possible due to the underlying business logic. Instead, you can extract parts of a query, cache and reuse them to improve pe...

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...

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