JavaScript & NodeJS

October 8, 2016

About Me

Organizer of CODE Norman

twitter: @bchirgwin

linkedin: linkedin.com/in/bchirgwin

Senior Software Engineer at Iteris

Workshop Expectations

• Pragmatic Approach
• Get out of it what you put into it
  • Workshop
  • Homework
  • Available for additional help
    • Most Thursday evenings
    • Other times on request

Online Tutorials

• Free code camp
  • curriculum-sequence
• Javascript
  • https://github.com/sethvincent/javascripting
• NodeJS
  • https://github.com/workshopper/learnyounode

Javascripting Tutorial

Workshops

• Git & GitHub - September 17
• NodeJS & Javascript - October 8
• Unit Tests - November 12?
• Database & Data Storage - December
• AngularJS Front-end Development - January
• End to End Testing - February
• Review open source projects - March
• Code Norman Open Source Project Kickoff - April

Editor/IDE

• Visual Studio Code
  • Intro Videos
• Webstorm
  • Tutorial Videos

NodeJS

• JavaScript Server Side
• Asynchronous
• npm
  • https://www.npmjs.com/
• runs on IoT
  •  rasberrypi, tessel2
• Support
  • Joyent, Walmart, Microsoft, Yahoo, Voxer

NodeJS

• 1 million concurrent connections (August 2012)
  • http://blog.caustik.com/2012/08/19/node-js-w1m-concurrent-connections/
• nginx vs apache
  • nginx is asynchronous, apache is synchronous
  • https://blog.webfaction.com/2008/12/a-little-holiday-present-10000-reqssec-with-nginx-2/

Sync vs Async 

Sync vs Async

Sync or Async

• Email
• Telephone
  • Answering Machine
• Television
  • VCR
• Netflix

• (async)
• (sync)
  • (async)
• (sync)
  • (async)
• (async)

RESTful

• REpresentational State Transfer
• www.domain.com/resource/{id}?q
• HTTP Methods
  • GET
  • PUT
  • POST
  • DELETE

GET example

• reply with a list of users
• method: GET
• Url: www.domain.com/users
• GET method does not accept a body

GET {id} example

• reply: user with id = 123
• method: GET
• Url: www.domain.com/users/123

POST example

• adds user & reply: user including id
• method: POST
• Url: www.domain.com/users/
• body: {
     firstname: 'Brian',
     lastname: 'Chirgwin'
  }

PUT example

• Updates user with id 123
• method: PUT
• Url: www.domain.com/users/123
• body: {
     firstname: 'Brian',
     lastname: 'Chirgwin',
     middleInitial: 'T'
  }

Node Project

• npm - node package manager
• third-party libraries
  • hapi - web server framework
  • lodash - utility library
  • joi - validation library
  • boom - easy html errors (404, etc...)
• Create a RESTful service for a resource
• Use browser and postman to send requests

Raffle

• JetBrains IDE

random.org

WebStorm

PhpStorm

PyCharm

RubyMine

AppCode

CLion

DataGrip

Rider

IntelliJ IDEA