Ruby On Rails

Tutorials

Calling Python functions from the Ruby language

Calling Python functions from the Ruby language Calling Python functions from the Ruby language. Contribute to mrkn/pycall.rb development by creating an account on GitHub.This library provides the features to directly call and partially interoperate with Python from the Ruby language. You can i...

How does Devise keep your passwords safe?

How does Devise keep your passwords safe? Devise is an incredible authentication solution for Rails with more than 40 million downloads. However, since it abstracts most of the cryptographic operations, it’s not always easy to understand what’s happening behind the scenes. One of those ab...

Writing Less Error-Prone Code

Writing Less Error-Prone Code How to optimize for a living codebase, where a line of code will be repeatedlyread, adapted and copied.How much time do you spend thinking about making code less susceptible to errors in the future?A line of code you write in a codebase under acti...

Debugging silently failing compilation aka Webpacker can’t find application.js

Debugging silently failing compilation aka Webpacker can’t find application.js After that I went on a typical programmer journey to find out what might be the issue. I went to google. Webpacker can’t find application.js was indeed a discovered error and yielded various Webpacker issues. Unfortunately nothing seemed like a fi...

How to: Execute RSpec in parallel locally

How to: Execute RSpec in parallel locally So far we used Knapsack gem for dividing our tests in order to evenly run them on CI, but we can’t really use it for running them all in parallel locally. This is where ParallelTests gem will come in handy.ParallelTests splits tests into even grou...

Rails 5.2 adds DSL for configuring Content Security Policy header

Rails 5.2 adds DSL for configuring Content Security Policy header Content Security Policy (CSP) is an added layer of security that helps to detect and mitigate various types of attacks on our web applications, including Cross Site Scripting (XSS) and data injection attacks.

How to Speed up Your Tests without Touching the Code

How to Speed up Your Tests without Touching the Code The larger the test suite the slower it gets. This is an obvious yet annying truth. In this article, I present a simple and generic technique for improving test suite performance (almost five-fold in my case) without touching the code base at all.

How To Upload A File To Amazon S3 Using From A Ruby Application?

How To Upload A File To Amazon S3 Using From A Ruby Application? You must be quite acquainted uploading files especially images S3 using Paperclip, CarrierWave etc., gems. But what if you just want to upload a file without any kind of pre / post processing or ActiveRecord integration? Paperclip, CarrierWave are...

Cache Invalidation Complexity: Rails 5.2 and Dalli Cache Store

Cache Invalidation Complexity: Rails 5.2 and Dalli Cache Store Rails applications that use ActiveRecord objects in their cache may experience an issue where the entries cannot be invalidated if all of these...

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape.

Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape. Doorkeeper is an OAuth 2 provider for Ruby on Rails / Grape. - doorkeeper-gem/doorkeeper. Doorkeeper is a gem (Rails engine) that makes it easy to introduce OAuth 2 provider functionality to your Ruby on Rails or Grape application.

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