Simon Escobar Benitez sescobb27

Effective transpiling of ES6

After publishing my article on ECMAScript 6, some have reached out to ask how I exactly I make it all work.

I refrained from including these details on the original post because they're subject to immiment obsoletion. These tools are changing and evolving quickly, and some of these instructions are likely to become outdated in the coming months or even weeks.

The main tool

When evaluating the available transpilers, I decided to use 6to5, which has recently been renamed to Babel. I chose it based on:

Rough Notes about CQRS and ES

Once upon a time…

I once took notes (almost sentence by sentence with not much editing) about the architectural design concepts - Command and Query Responsibility Segregation (CQRS) and Event Sourcing (ES) - from a presentation of Greg Young and published it as a gist (with the times when a given sentence was heard).

I then found other summaries of the talk and the gist has since been growing up. See the revisions to know the changes and where they came from (aka the sources).

It seems inevitable to throw Domain Driven Design (DDD) in to the mix.

Using OTP's observer (appmon replacement) remotely

$ ssh remote-host "epmd -names"
epmd: up and running on port 4369 with data:
name some_node at port 58769

Note the running on port for epmd itself and the port of the node you're interested in debugging. Reconnect to the remote host with these ports forwarded:

$ ssh -L 4369:localhost:4369 -L 58769:localhost:58769 remote-host

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

Does the design expect failures to happen regularly and handle them gracefully?
Have we kept things as simple as possible?

	FROM ubuntu-debootstrap:14.04

	RUN echo 'deb http://archive.ubuntu.com/ubuntu trusty main' >/etc/apt/sources.list
	RUN echo 'deb http://archive.ubuntu.com/ubuntu trusty-security main' >>/etc/apt/sources.list
	RUN echo 'deb http://archive.ubuntu.com/ubuntu trusty-updates main' >>/etc/apt/sources.list
	RUN echo 'deb http://archive.ubuntu.com/ubuntu trusty universe' >>/etc/apt/sources.list

	RUN apt-get update

	RUN apt-get install -y --force-yes \


	def salaries_by_lang(salaries, lang)
	salaries.find_all{\|x\| x[:in_what_technologies_are_you_proficient?] =~ /#{lang}/}
	end

	# company_type can be for example: multinational, outside, exclusively
	def salaries_by_company_type(salaries, company_type)
	salaries.find_all{\|x\| x[:"referring_to_the_company_or_project_that_you_work_for_most_of_the_time:"] =~ /#{company_type}/}
	end

	package main

	import (
	"database/sql"
	"fmt"
	_ "github.com/go-sql-driver/mysql"
	"log"
	)

	const (

	#!/bin/sh

	# OPTIONAL FLAGS:
	#
	# -geoip true
	# this will install maxmind geoip and auto update crontab file
	#
	# -cloudwatch true
	# this will install aws cloud watch metrics and send them to aws dashboard
	#

	App.LibraryRoute = App.ApplicationRoute.extend({
	activate: function () {
	//no longer enter
	this._super();
	only called once on entering a route.
	},

	beforeModel: function () {
	// any state you want in place before the model is initialized, this is called before any model promises are resolved
	// also could be used to conditionally prevent access to a route by throwing transition.abort

	// You don't want to serve HTTPS supporting for SSL3.0 any longer, see:
	// http://googleonlinesecurity.blogspot.de/2014/10/this-poodle-bites-exploiting-ssl-30.html
	import (
	"crypto/tls"
	"net/http"
	)

	// This code supports SSL3.0, TLS1.0, TLS1.1 and TLS1.2
	// Chances are you currently do this but want to stop due to the POODLE
	err := http.ListenAndServeTLS(addr, "crtfile", "keyfile", handler)