Ri Caragol ritec

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Editing to bump this in my history 2025-10-28.

Start workers:

This will run the loans queue with the weight of 5

bundle exec sidekiq -q loans,5

SO: How to run Sidekiq in production

Stopping Sidekiq

The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.

The correct way of creating a private frok by duplicating the repo is documented here.

For this assignment the commands are:

Create a bare clone of the repository. (This is temporary and will be removed so just do it wherever.)

git clone --bare git@github.com:usi-systems/easytrace.git

Preamble

On OS/X Sierra, after recently running a brew update I started receiving the error message Sorry, you can't use byebug without Readline when trying to run some rake tasks in my ruby project folder. I observed this in projects and gems that include byebug or pry in their Gemfile or gem.spec. I've found in my googling that many begin encountering this error message after running a brew update but there are other triggering conditions as well.

>> rake aws:show_config
WARN: Unresolved specs during Gem::Specification.reset:
      mime-types (>= 0)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
 Sorry, you can't use byebug without Readline. To solve this, you need to

Webpack in Rails

All code is available in example app - https://github.com/maxivak/webpacker-rails-example-app

JWT Auth + Refresh Tokens in Rails

This is just some code I recently used in my development application in order to add token-based authentication for my api-only rails app. The api-client was to be consumed by a mobile application, so I needed an authentication solution that would keep the user logged in indefinetly and the only way to do this was either using refresh tokens or sliding sessions.

I also needed a way to both blacklist and whitelist tokens based on a unique identifier (jti)

Before trying it out DIY, I considered using:

I was able to get Ruby 2.5.1 building on M1 by following two of the steps in that GH issue...

rbenv/ruby-build#1691 (comment) rbenv/ruby-build#1691 (comment)

I installed readline and openssl with standard brew install.

brew install readline
brew install openssl

Problem

Installing mysql2 gem errors on Apple silicon M1, M2 or M3 Mac running macOS Sonoma.

Solution

Make sure mysql-client, openssl and zstd are installed on Mac via Homebrew.

Replace mysql-client with whichever mysql package you are using

	# set ruby/rails version
	export DOCKER_RAILS_VERSION="7.0.1"
	export DOCKER_RUBY_VERSION="3.1.0"
	export RAILS_PROJECT_NAME="rails7"
	# create folder for the project and add Gemfile with necessary rails version
	mkdir "$RAILS_PROJECT_NAME"
	cd "$RAILS_PROJECT_NAME"
	echo "ruby '$DOCKER_RUBY_VERSION'
	source 'https://rubygems.org'
	gem 'rails', '$DOCKER_RAILS_VERSION'" > Gemfile


	...
	##
	# Until this commit is merged and released by rack
	#
	gem 'rack', git: 'https://github.com/rack/rack.git', ref: 'c859bbf7b53cb59df1837612a8c330dfb4147392'
	...