Milan Rawal codemilan

My initial setup for Ruby on Rails development

Note: I'm using Mac OS X Lion (10.7.5)

All links, commands and order to install

Download Xcode
Open Xcode, Xcode (menu) > Preferences... > Downloads. Install Command Line Tools
Install Homebrew

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"

This will create a proxy server in whatever your availability zone your VPC is in. For me, that's us-east-1b. For you, that may be something different. Steps 10+ should more or less work regardless of your provider since those steps cover the setup and configuration of TinyProxy.

Click the Launch Instance button.
Choose Ubuntu Server 14.04 LTS (HVM), SSD Volume Type. This isn't strictly necessary. If you choose another OS, check its documentation for how to install new packages.
On the Choose an Instance Type screen, select t2.micro. It's Free Tier eligible.
Click the Next: ... buttons until you reach the Configure Security Group screen.
- You may wish to reduce the amount of storage on the Add Storage screen. This is optional.
- You may wish to add a tag on the Tag Instance screen. This is also optional.
On the Configure Security Group screen:

Select Create a new security group.

Installation

Install fish via Brew
Optionally install Oh My Fish!
Add fish to known shells
Set default shell to fish

brew install fish  
curl -L https://get.oh-my.fish | fish

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	require 'bundler/inline'

	gemfile do
	source 'https://rubygems.org'
	gem 'pg'
	gem 'activerecord', '5.2.0'
	gem 'memory_profiler'
	gem 'benchmark-ips'
	end

	require 'active_record'
	require 'arel'

	# Ruby-like syntax in AR conditions using the underlying Arel layer (Rails >= 3.0).
	#
	# What you would usually write like this:
	#
	# User.where(["users.created_at > ? AND users.name LIKE ?", Date.yesterday, "Mary"])
	#
	# can now be written like this (note those parentheses required by the operators precedences):

	# NOTES::Important (!) To construct a signature string, parameters should be ordered alphabetically by
	# initials of parameter names. Otherwise the e-signature verification process will fail.

	# Post request.
	require "net/http"
	require "uri"
	require 'openssl'
	require "base64"
	require "rubygems"
	require "json"

	# This server demo does a socket hijack in Rack and then saves the socket to a global variable
	# to prevent it from being GCed when the Puma thread ends. It will then write "BEEP" to each
	# socket every ten seconds to prevent the connection timing out. During testing, it easily
	# handled up to 65523 connections, after which it ran into the `ulimit` for open file descriptors.
	# The bit with the waiting area is there because a normal `Set` is not thread safe and it would
	# drop socket due to race conditions. The `Queue` is thread safe and will make sure all sockets
	# are preserved.

	# run with `rackup -q -p 8000 -o 0.0.0.0 c10k.ru`
	# testing: install `ab` and then run `ab -c 20000 -n 20000 <ip adress of server>:8000/

	# https://www.justinweiss.com/articles/search-and-filter-rails-models-without-bloating-your-controller/
	# Call scopes directly from your URL params:
	#
	# @products = Product.filter(params.slice(:status, :location, :starts_with))
	module Filterable
	extend ActiveSupport::Concern

	module ClassMethods

	# Call the class methods with the same name as the keys in <tt>filtering_params</tt>

	# Ref:- 'https://gist.github.com/tadast/9932075'
	# Inside your rails app root directory.
	# run "mkdir config/certs && touch config/certs/.keep"
	# Add below two lines in .gitignore
	# /config/certs/*
	# !/config/certs/.keep

	# Add below code in config/puma.rb

	if Rails.env.development?