John Woo johnnyworker1012

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

Installing ngrok on OSX

For Homebrew v2.6.x and below:

brew cask install ngrok

For Homebrew v2.7.x and above:

Rails Rspec APIs Testing Notes

Folders Structure

  spec
  |--- apis #do not put into controllers folder. 
        |--- your_api_test_spec.rb  
  |--- controllers
  |--- models
  |--- factories
 |--- views

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	#!/bin/sh

	# Based on instructions found here: http://wiki.razuna.com/display/ecp/FFMpeg+Installation+on+CentOS+and+RedHat#FFMpegInstallationonCentOSandRedHat-InstallX264

	if [ "`/usr/bin/whoami`" != "root" ]; then
	echo "You need to execute this script as root."
	exit 1
	fi

	cat > /etc/yum.repos.d/centos.repo<<EOF

	#!/bin/bash
	#
	# Install Postgres 9.2 on a clean Ubuntu 12.04

	"""
	LC_ALL issue
	comment out the AcceptEnv LANG LC_* line in the remote /etc/ssh/sshd_config file.
	sudo apt-get install language-pack-en-base
	sudo dpkg-reconfigure locales
	comment out the SendEnv LANG LC_* line in the local /etc/ssh/ssh_config file.

	# autoload concerns
	module YourApp
	class Application < Rails::Application
	config.autoload_paths += %W(
	#{config.root}/app/controllers/concerns
	#{config.root}/app/models/concerns
	)
	end
	end

	# config/initializers/active_model_serializers.rb
	Mongoid::Document.send(:include, ActiveModel::SerializerSupport)
	Mongoid::Criteria.delegate(:active_model_serializer, :to => :to_a)

	access_key_id: xxx
	secret_access_key: yyy