Ruby On Rails

Tutorials

Let's hash this out.

Let's hash this out. How hashes have changed in the last few versions of Rails, and how you can handle them to minimize the pain of your next upgrade.Ruby hashes are wonderfully versatile. You can store any kind of object using any kind of key and do all sorts of wack...

Getting Started with AWS S3 IAM Policies Security Config for Rails Apps

Getting Started with AWS S3 IAM Policies Security Config for Rails Apps Storing files on S3 is for many developers, the first contact with AWS cloud. Unfortunately, the “quick and easy” configuration can be insecure. If you are uploading files to an S3 bucket but never configured a custom AWS IAM policy it’s possible ...

How MJIT Generates C From Ruby - A Deep Dive

How MJIT Generates C From Ruby - A Deep Dive I’ll give you the short version here: Ruby parses your code. It turns it into an Abstract Syntax Tree, which is just a tree-data-structure version of the operations you asked it to do. Before Ruby 1.9, Ruby would directly interpret the tree struct...

Debugging hidden memory leaks in Ruby

Debugging hidden memory leaks in Ruby In 2015 I wrote about some of the tooling Ruby provides for diagnosing managed memory leaks. The article mostly focused on the easy managed leaks.This article covers tools and tricks you can use to attack leaks that you can not easily introspect i...

Action Cable for Rails API

Action Cable for Rails API Rails 5 introduced us to action cable that is a web socket for rails.ActionCable can be used for chats, synced editing app, or real-time app notifications.When creating a new rails API or app, action cable comes builtin the app.There are many arti...

Cross domain session sharing in Rails - Part 1

Cross domain session sharing in Rails - Part 1 We have multiple micro services at Memory.ai which talk to each other and share data. As we are extracting more and more micro services, we were facing the problem of adding authentication layer in every service. In an ideal world, only one servic...

Three Awesome Libraries to Assess Code Quality in Ruby

Three Awesome Libraries to Assess Code Quality in Ruby As part of our Rails upgrade business we get to evaluate a lot of codebases every month. We usually need a quick way to assess the quality of the code we get. For this we like to use CodeClimate and SimpleCov.CodeClimate is free for open source pr...

Building and Consuming a JSON API with Rails and React

Building and Consuming a JSON API with Rails and React To create a new project with rails, we need to use the rails new command with the project name at the end.We could also add some additional options. In this case, we will use --database=postgresql to use PostgreSQL as our database, --skip-turbolin...

Save your links from phishers

Save your links from phishers While Pull Request fixing issue with OWASP Tabnabbing is still open... since Feb 16, 2017, our shiny Rails applications are in danger. But wait no longer! Just put code like this:.

RuboCop Meets Minitest

RuboCop Meets Minitest RuboCop has had an “official” extensions for RSpec for years. In fact the rubocop-rspec project was the thing that pushed us in the direction to make RuboCop itself modular and to make it easy to create RuboCop extensions in general. There’s still...

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