Alessandro Caporrini acaporrini

## compress_urls.md

      
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    How to compress url parameters (and any other string) in Ruby

Introduction

Working with web applications and microservices we often have the problem of passing long lists of settings through http requests.
While the canonical way of doing this would be to use a POST request and pass the values in the body of the request, this is not always an option for us.
In fact there can be cases where we need to generate URLs that can be passed to other users as a link, and reused by them later to trigger an action in the target Rails server.
The only way to achieve this is for us to be able to pass these values as URL parameters in a GET request, but unfortunately these URLs exceed often the maximum url length limit allowed by the browsers or web servers.

  
## products_controller_spec.rb
require 'rails_helper'

describe ProductsController, type: :controller do
  describe "POST # products" do
    before do
      @user = User.create(email: "demo@demo.com", password: "12345678")
      @user.confirm
      sign_in @user
    end
    it "create a new product" do

## heroku
Counting objects: 15, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (7/7), done.
Writing objects: 100% (8/8), 633 bytes | 0 bytes/s, done.
Total 8 (delta 5), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote:
remote: -----> Ruby app detected
remote: -----> Compiling Ruby/Rails

## pet.rb
class Pet
  attr_reader :color, :breed
  attr_accessor :name
  def initialize(color, breed)
    @color = color
    @breed = breed
    @hungry = true
  end
  def feed(food)
    puts "Mmm, " + food + "!"

## cat.rb
class Cat
  attr_reader :color, :breed
  attr_accessor :name
  def initialize(color, breed)
    @color = color
    @breed = breed
    @hungry = true
  end
  def feed(food)
    puts "Mmm, " + food + "!"

## program5.rb
def fav_foods
  food_array = []
  my_fav = ["pizza","pasta","cheese"];
  3.times do
    puts "Name a favorite food."
    food_array << gets.chomp
  end
  #p food_array
  food_array.each do |food|
    puts "I like #{food} too!" if my_fav.include?(food.downcase)

## program2.rb
if (5+5==10)
  puts "this is true"
else
  puts "this is false"
end

## hello.rb
def greeting
  puts "Please enter your name"
  name = gets.chomp
  puts "hello "+name
end

greeting

## index.html
<!DOCTYPE html>
<html lang="en" >
  <head>
    <meta charset="utf-8">

    <title>Home</title>

    <!-- Bootstrap core CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">
    <link href="css/styles.css" rel="stylesheet">

## about.html
<!doctype html>
<html lang="en">
<head>
	<meta charset="utf-8">
	<link rel="stylesheet" href="css/normalize.css">
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">
	<link href="css/styles.css" rel="stylesheet">
	<link rel="stylesheet" href="css/about_styles.css">
	<link href='http://fonts.googleapis.com/css?family=Quicksand' rel='stylesheet' type='text/css'>
	<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
	require 'rails_helper'

	describe ProductsController, type: :controller do
	describe "POST # products" do
	before do
	@user = User.create(email: "demo@demo.com", password: "12345678")
	@user.confirm
	sign_in @user
	end
	it "create a new product" do
	Counting objects: 15, done.
	Delta compression using up to 4 threads.
	Compressing objects: 100% (7/7), done.
	Writing objects: 100% (8/8), 633 bytes \| 0 bytes/s, done.
	Total 8 (delta 5), reused 0 (delta 0)
	remote: Compressing source files... done.
	remote: Building source:
	remote:
	remote: -----> Ruby app detected
	remote: -----> Compiling Ruby/Rails
	class Pet
	attr_reader :color, :breed
	attr_accessor :name
	def initialize(color, breed)
	@color = color
	@breed = breed
	@hungry = true
	end
	def feed(food)
	puts "Mmm, " + food + "!"
	class Cat
	attr_reader :color, :breed
	attr_accessor :name
	def initialize(color, breed)
	@color = color
	@breed = breed
	@hungry = true
	end
	def feed(food)
	puts "Mmm, " + food + "!"
	def fav_foods
	food_array = []
	my_fav = ["pizza","pasta","cheese"];
	3.times do
	puts "Name a favorite food."
	food_array << gets.chomp
	end
	#p food_array
	food_array.each do \|food\|
	puts "I like #{food} too!" if my_fav.include?(food.downcase)
	def greeting
	puts "Please enter your name"
	name = gets.chomp
	puts "hello "+name
	end

	greeting
	<!DOCTYPE html>
	<html lang="en" >
	<head>
	<meta charset="utf-8">

	<title>Home</title>

	<!-- Bootstrap core CSS -->
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">
	<link href="css/styles.css" rel="stylesheet">
	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<link rel="stylesheet" href="css/normalize.css">
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">
	<link href="css/styles.css" rel="stylesheet">
	<link rel="stylesheet" href="css/about_styles.css">
	<link href='http://fonts.googleapis.com/css?family=Quicksand' rel='stylesheet' type='text/css'>
	<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>