communication is a technical skill

COMMUNICATION IS A TECHNICAL SKILL

Sarah Allen@ultrasaurus

MAKING SOFTWARE FUN

MAKING SOFTWARE FUN

EXAMPLESSOCIAL CHANGE BUSINESS OPEN SOURCE

COMMUNICATION PATTERNS

1. BIG VISION 2. CONCRETE STEP 3. THE PATH

SOCIAL CHANGEBRIDGE FOUNDRY

Bridge Foundry Workshops

DIVERSE TEAM CHILDCARE FOOD INSTALLFEST DAY OF CODING Bridge Foundry Workshops

DIVERSE TEAM CHILDCARE FOOD INSTALLFEST DAY OF CODING Bridge Foundry Workshops

DIVERSE TEAM CHILDCARE FOOD INSTALLFEST DAY OF CODING Bridge Foundry Workshops

DIVERSE TEAM CHILDCARE FOOD INSTALLFEST DAY OF CODING Bridge Foundry Workshops

DIVERSE TEAM CHILDCARE FOOD INSTALLFEST DAY OF CODING Bridge Foundry Workshops

MOVING THE NEEDLE: HOW SF RUBY GOT TO 18% — SARAH MEI

BUSINESSFIREBASE

"HELP DEVELOPERS BUILD BETTER APPS AND GROW SUCCESSFUL BUSINESSES"James Tamplin

FIFTEEN MINUTESDEVELOPER PRODUCTIVITY

YOUR PRODUCT IS NOT JUST YOUR CODE

DOCUMENTATION, WEBSITE, BLOG GITHUB STACK OVERFLOW SOCIAL MEDIA CONFERENCE TALKS, MEETUPS, HACKATHONS,

MAKE PEOPLE FEEL POWERFUL

Judy Tuan presenting Firebase app: Mobile Graffiti

OPEN SOURCERACK

CHRISTIAN NEUKIRCHEN

HTTP://CHNEUKIRCHEN.ORG/BLOG/ARCHIVE/2007/02/INTRODUCING-RACK.HTML

8 minutes on

Rackbased on a presentation byDan Webb (dan@danwebb.net)@danwronghttp://slidesha.re/dan_on_rack

A Convention

If you have a Ruby object...

that has a call method which takes one argument...

app.call(env)

and that method returns an array with 3 elements...

[200, { 'Content-Type' => 'text/plain' }, 'Hello World!']

then you can connect it to any web server that supports Rack

require 'thin' Rack::Handler::Thin.run(app, :Port => 4000)

and you've got yourself a web application

That's it.

For Example...

app = Proc.new do |env| [200, { 'Content-Type' => 'text/plain' }, 'Hello World!'] end

require 'rubygems' require 'thin'Rack::Handler::Thin.run(app, :Port => 4000)

class HelloWorld def initialize(name) @name = name end

def call(env) [200, { 'Content-Type' => 'text/plain' }, "Hello #{@name}!"] end end

require 'rubygems' require 'rack'Rack::Handler::Mongrel.run(HelloWorld.new("Dan"), :Port => 4000)

def call(env)

{ "SERVER_NAME"=>"localhost", "HTTP_ACCEPT_ENCODING"=>"gzip,deflate", "HTTP_USER_AGENT"=>"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en- GB; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4", "PATH_INFO"=>"/", "SCRIPT_NAME"=>"", "SERVER_PROTOCOL"=>"HTTP/1.1", "HTTP_ACCEPT_LANGUAGE"=>"en-gb,en;q=0.5", "HTTP_HOST"=>"localhost:4000", "REMOTE_ADDR"=>"127.0.0.1", "HTTP_KEEP_ALIVE"=>"300", "REQUEST_PATH"=>"/", "SERVER_SOFTWARE"=>"thin 0.8.2 codename Double Margarita", "HTTP_ACCEPT_CHARSET"=>"ISO-8859-1,utf-8;q=0.7,*;q=0.7", "HTTP_VERSION"=>"HTTP/1.1", "REQUEST_URI"=>"/", "SERVER_PORT"=>"4000", "QUERY_STRING"=>"", "GATEWAY_INTERFACE"=>"CGI/1.2", "HTTP_ACCEPT"=>"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", "HTTP_CONNECTION"=>"keep-alive", "REQUEST_METHOD"=>"GET"}

[200, { 'Content-Type' => 'text/plain' }, "Hello #{@name}!"]

Status Code

[200, { 'Content-Type' => 'text/plain' }, "Hello #{@name}!"]

HTTP Headers

[200, { 'Content-Type' => 'text/plain' }, "Hello #{@name}!"]

Response Body

Response body can be any object that respond_to?(:each)

file = File.new('myfile.xml') [200, { 'Content-Type' => 'application/xml' }, file]

For Example...

class StreamingFile def initialize(file) @file = file end

def length File.size(@file) end

def last_modified File.mtime(@file).rfc822 end

def each File.open(@file, "rb") do |file| while part = file.read(8192) yield part end File.delete(@file) end end

[200, { 'Content-Type' => 'audio/mp3', 'Content-Length' => file.length.to_s}, file]

Common interface

• Passenger

• Mongrel

• CGI

• SCGI

• FastCGI

• Thin

• Ebb

• Fuzed

• Webrick

• Litespeed

Write once, serve however...

Michael Basial: Light Bulbhttps://www.flickr.com/photos/basial/3010044632/

WHAT WE DOCOMMUNICATION

ADOPTION OF LANGUAGES WITH NEW POWERS

ERLANG CLOJURE SCALA GO RUST SWIFT ELIXIR ELM

FUNCTIONAL

ELIXIR ERLANG VM (2012) ELM JAVASCRIPT (2012) SCALA JAVA VM (2003)

CLOJURE JAVAVM (2007)

SWIFT iOS/Mac/Linux (2014)

HASKELL - 1990 ERLANG - 1986 ML - 1973 LISP - 1958

C - 1972 COBOL - 1959 FORTRAN - 1956

GO (2009)

JAVA - 1995 C++ - 1983OBJECTIVE C - 1984

SMALLTALK - 1972

JAVASCRIPT - 1995 RUBY - 1995

IMPERATIVEOBJECT-ORIENTED

RUST (2010)

LEARN A NEW LANGUAGE

LEARN A NEW LANGUAGE

MAKE A NEW LANGUAGE

CODE IS COMMUNICATION

WHAT WILL YOU SAY?

PHOTO CREDITS

▸ 13) Isaiah van Hunen: Face (original 1)https://www.flickr.com/photos/isaiah115/7301506118 https://creativecommons.org/licenses/by-sa/2.0/

▸ 14) photo by Lee Lundrigan

▸ 32) https://firebase.googleblog.com/2013/05/firebase-at-angelhack-sf-2013.html

▸ 64) Michael Basial: Light Bulb https://www.flickr.com/photos/basial/3010044632/

▸ 66) Wizard: http://mortal-affairs.wikia.com/wiki/Wizards