Frontend Choices (Tropical Ruby)

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Alex Coles | Tropical Ruby, Recife Frontend Choices

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oi Recife ;-)

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lusófono

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s/tu/você/

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Alex Coles | Tropical Ruby, Recife Frontend Choices F5

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not really about choice

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“

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quem sou eu?

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I’m a backend guy living in a frontend world “

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@myabc Alex Coles Berlin, Germany Finn GmbH

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openproject.org Create a demo instance at  start.openproject.com

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@myabc eurucamp.org eurucamp.org jrubyconf.eu

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euruko2015.org Salzburg, Austria | October 17 - 18

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10 years ago 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004

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10 years ago what was I doing?

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10 years ago what was the world doing?

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10 years ago what was Brazil doing?

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10 years ago what were you doing? ?

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10 years ago what was Apple doing?

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10 years ago what was the web doing?

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10 years ago there was no jQuery!

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10 years ago the end of 2004 was to mark a transition

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No content

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No content

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…we mostly had “websites”

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yahoo.com Yahoo! 2004

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bindows.net Bindows 2004

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gmail.com Gmail pre-β 2002-4 http://techcrunch.com/2008/06/06/the-evolution-of-pre-launch-gmail-in-screenshots/

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where we are now

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…we have “applications”

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soundcloud.com Soundcloud

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Single Page Application Architecture

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chunking controller templating routing real-time communicaton local storage Single Page Application Architecture - +

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The Rails (UI) Way

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Rails is so 2005 “

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“Rails Way” for views back in 2005 •Server Generated HTML (ERB, etc.) •Prototype •Scriptaculous •RJS

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http://slash7.com/assets/2006/10/8/RJS-Demistified_Amy-Hoy-slash7_1.pdf RJS

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RJS

<%= link_to_remote 'Add to cart', url: { controller: 'cart', action: 'add_to_cart' }%> erb view class CartController < ActionController::Base def add_to_cart @item = CartItem.new @cart.items << @item end end controller page.insert_html :bottom, :items, partial: 'item', object: @item page.replace_html :items_count, I18n.t(:item, count: @cart.items.count) rjs view

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“Rails Way” for views now • Server Generated HTML (ERB, Slim, HAML etc.) • jQuery • jQuery UI • Server generated JavaScript Responses (SJR)

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meanwhile

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JavaScript has grown up

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JavaScript has grown up percentage of total JS developer jobs has doubled from 2005 to 2010 indeed.com

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JavaScript has grown up Server-side usage of JS has been multiplied by 6 from Jan 2012 to Oct 2014 W3Techs.com

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no backend nobackend.org

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hood.ie Hoodie

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meteor.com Meteor 50 UPCOMING EVENTS 4224 PACKAGES 9915 STACK OVERFLOW QUESTIONS 254K UNIQUE INSTALLS 12 PROFESSIONAL SERVICE PROVIDERS Meteor is a complete open source platform Build apps that are a delight to use, faster than you ever thought possible I N S TA L L M E T E O R I N S TA L L M E T E O R 1 .0. 3 . 2 1 .0. 3 . 2 Star Star Follow Follow @meteorjs @meteorjs 36.8K followers 22945 22945 TUTORIAL DOCS SUBPROJECTS PACKAGES THE METEOR PROJECT BLOG SIGN IN

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isomorphism

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plethora of frontend frameworks

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frontend (MV*) frameworks AngularJS Ember.js KnockoutJS

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ReactJS ExtJS Backbone View (alone) frontend (component) frameworks Ractive.js

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TodoMVC todomvc.com

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but I <3 Ruby !

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back to the question…

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“

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is there room for Rails?

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“ – Marcin Stecki @madsheepPL at wroc_love.rb Not his [DHH’s] responsibility to tell us how to do these things.

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single page vs. traditional HTML

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naturally content-dependent

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what is your content? Information pages Closed systems Membership sites general personal

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content criteria • authentication • how real is real-time • caching • indexing (SEO)

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how unique is the view to be rendered? how many combinations of a unique set of data? • a blog with comments • a hotel page with reviews • a dashboard

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if it is curated content Rails way →

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other ways are better if it is SPA →

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some tips

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what is most like Rails? tip 1: familiarity Ember.js is most like Rails

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Ember.js is most like Rails • everything should inherit from main object ActiveRecord::Base.inherited Ember.Object Plain Old JavaScript Objects

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Ember.js is most like Rails • routing DSL built-in routing not in core, third party solutions built-in routing

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Ember.js is most like Rails • vocabulary (templates, partials, etc.) Dependency Injection, Factories, Services, Providers,  Transclusion Models, Controllers, Views, Initializers Models, Controllers, Views, Initializers

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how to make things work with Rails?

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using asset pipeline / sprockets tip 2: Rails “the non-Rails way

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use Bower

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3 options for using Bower

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gem install bower-rails 1 option gem

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config.assets.paths << File.join(Rails.root, ‘bower_components') Rails 4 (Sprockets 2+) 2 option

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rails-assets.org rails-assets.org 3 option

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ember-rails-api github.com/dockyard/ember-appkit-rails

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the app/assets/javascripts silo

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what is the way forward? →

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voltframework.com Volt Framework Volt is a framework for building data rich web applications shockingly fast. Play Video ! Get Started " Home Getting Started Docs API Blog Community #

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Volt

{{ item._name }}

view class CartController < Volt::ModelController model :cart def add_to_cart page._cart_items = { name: page._new_item } page._new_item << '' end controller

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eu não gosto de monólitos

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RJS

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(IMHO)

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split completely ! tip 3: split

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applications 2 frontend = 1 API + 1

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frontend API Rails Sinatra JS workflows Lotus.rb

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client-server model works

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monolingualism is bad

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JavaScript tooling

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alternative build-pipelines

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surprisingly well testable (and fast)

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isomorphism is possible http://nerds.airbnb.com/isomorphic-javascript-future-web-apps/