Kevin Tran duykhoa

Rack is a common interface to interact with different ruby server

to understand the concept of http server, we just need to search for some ruby code that implement a tcp server without any library.

here is a potato for you

  server = TCPServer.new('localhost', 12345)

Setting up a SSL Cert from Comodo

I use Namecheap.com as a registrar, and they resale SSL Certs from a number of other companies, including Comodo.

These are the steps I went through to set up an SSL cert.

	#!/usr/bin/env bash

	# Ask for the administrator password upfront
	echo 'Please enter your password to grant sudo-rights:'
	sudo -v

	echo 'Empty the Trash on all mounted volumes and the main HDD...'
	sudo rm -rfv /Volumes/*/.Trashes &>/dev/null
	sudo rm -rfv ~/.Trash &>/dev/null

	# Code from https://www.practicingruby.com/articles/implementing-an-http-file-server

	require 'socket'
	server = TCPServer.new('localhost', 2345)

	loop do
	socket = server.accept
	request = socket.gets
	response = <<-HTML
	<html>

	#!/usr/bin/env ruby

	require "webrick"

	=begin
	WEBrick is a Ruby library that makes it easy to build an HTTP server with Ruby.
	It comes with most installations of Ruby by default (it’s part of the standard library),
	so you can usually create a basic web/HTTP server with only several lines of code.

	The following code creates a generic WEBrick server on the local machine on port 1234,

	require 'webrick'

	class BlogApplication < WEBrick::HTTPServlet::AbstractServlet
	class PostRepository
	Post = Struct.new(:title, :content)

	def self.get
	[
	Post.new("post1", "content1"),
	Post.new("post2", "content2")

	if [ -n "$ZSH_VERSION" ]; then
	echo 'zsh env'
	echo 'export COVERAGE=true' >> ~/.zshrc
	elif [ -n "$BASH_VERSION" ]; then
	echo 'bash env'
	echo 'export COVERAGE=true' >> ~/.bashrc
	else
	echo 'You need to run `COVERAGE=true rspec` each time'
	fi

	require 'minitest/autorun'

	class PianoKeyTest < Minitest::Test
	KEYS_COUNT = 88
	BLACK_KEY_SEQ = [0, 2, 5, 7, 9]

	BLACK_SEQ_START_POS = 5

	BLACK = "black"
	WHITE = "white"

	class ImportParticipant
	def initialize(source:, :target)
	@source = source
	@target = target
	end

	attr_reader :source, :target

	def call
	data = @source.read_and_parse