Sinatra - Primeiros Passos

SinatraPrimeiros passos

por Jésus Lopes@jtadeulopes#zigottolabs

sexta-feira, 11 de fevereiro de 2011

#zigottolabssexta-feira, 11 de fevereiro de 2011

ruby


ruby

web


ruby

frameworkweb


ruby

frameworkweb

development


ruby

frameworkweb

developmentapplications


ruby

frameworkweb

developmentapplications

open-source


e o Rails?


Ele é o mais utilizado, mas não é o único!


Sinatra

“Sinatra is a DSL for quickly creating web applications in Ruby with minimal effort”

https://github.com/sinatra/sinatrasexta-feira, 11 de fevereiro de 2011

https://github.com/sinatra/sinatra/

https://github.com/sinatra/sinatra/

O que eu preciso?


O que eu preciso?

$ gem install sinatra


O que eu preciso?

pronto =)

$ gem install sinatra


Primeiro exemplo


Primeiro exemplo


Primeiro exemplo

Mínimo de esforço, ok?


1 # my_app.rb2 require "rubygems"3 require "sinatra"4 56 get "/" do7 "#zigottolabs"8 end


$ ruby my_app.rb


$ ruby my_app.rb


Routeshttp://sinatra-book.gittr.com/#routes


1 # simple routes 2 3 get "/contact" do 4 "http://www.zigotto.com" 5 end 6 7 # named parameters 8 9 get "/url/:username" do10 # GET /url/jtadeulopes11 params[:username] # => "jtadeulopes"12 end


http://www.zigotto.com


HTTP Methodshttp://sinatra-book.gittr.com/#http_methods


1 get "/" do 2 "show..." 3 end 4 5 post "/" do 6 "create something..." 7 end 8 9 put "/" do10 "update something..."11 end12 13 delete "/" do14 "delete..."15 end


Viewshttp://sinatra-book.gittr.com/#views


1 get "/" do 2 '<html> 3 <head> 4 <title>Sinatra</title> 5 </head> 6 <body> 7 Primeiros passos com sinatra 8 </body> 9 </html>'10 end


Mínimo esforço?


1 # erb2 get "/" do3 erb :index4 end





1 2 <html>3 <head>4 <title>Sinatra</title>5 </head>6 <body>7 Primeiros passos com sinatra8 </body>9 </html>



1 2 <html>3 <head>4 <title>Sinatra</title>5 </head>6 <body>7 Primeiros passos com sinatra8 </body>9 </html>


1 # haml 2 # render /views/index.haml 3 4 get "/" do 5 haml :index 6 end 7 8 # sass 9 # render /views/stylesheet.sass10 11 get "/stylesheet.css" do12 content_type "text/css", :charset => "utf-8"13 sass :stylesheet14 end


Helpershttp://sinatra-book.gittr.com/#helpers


http://sinatra-book.gittr.com/#helpers

http://sinatra-book.gittr.com/#helpers

1 helpers do 2 3 def profile_url(username) 4 "http://twitter.com/#{username}" 5 end 6 7 end 8 9 get "/url/:username" do10 # GET /url/jtadeulopes11 profile_url(params[:username])12 end


http://twitter.com/#

http://twitter.com/#

Filtershttp://sinatra-book.gittr.com/#filters


1 before do 2 "this code will run before each request..." 3 end 4 5 get "/" do 6 "...." 7 end 8 9 after do10 "this code will run after each request..."11 end


Configurationhttp://sinatra-book.gittr.com/#configuration


1 # all environments 2 configure do 3 "..." 4 end 5 6 # production 7 configure :production do 8 set :domain, "http://www.site.com" 9 not_found do10 erb :"404"11 end12 error do13 erb :"500"14 end15 end16 17 # multiple18 configure :development, :test do19 set :domain, "http://localhost:4567"20 end21 22 # GET /23 get "/" do24 "my domain is #{options.domain}"25 end


http://localhost:4567

http://localhost:4567

Modelshttp://sinatra-book.gittr.com/#models


http://sinatra-book.gittr.com/#

http://sinatra-book.gittr.com/#

ActiveRecord

$ gem install activerecord


1 # my_app.rb 2 require "rubygems" 3 require "sinatra" 4 require "active_record" 5 6 # connection settings 7 ActiveRecord::Base.establish_connection( 8 :adapter => 'mysql2', 9 :host => "localhost",10 :username => "my_user",11 :password => "my_password",12 :database => "app_development"13 )14 15 # you already have a 'vehicles' table in your database16 class Vehicle < ActiveRecord::Base17 end18 19 get "/" do20 @vehicles = Vehicle.all21 erb :index22 end


Testinghttp://www.sinatrarb.com/testing.html


http://www.sinatrarb.com/testing.html

http://www.sinatrarb.com/testing.html

1 # my_app_test.rb 2 require './my_app' 3 require 'test/unit' 4 require 'rack/test' 5 6 class MyAppTest < Test::Unit::TestCase 7 include Rack::Test::Methods 8 9 def app10 Sinatra::Application11 end12 13 def test_my_contact14 get '/contact'15 assert_equal 'http://www.zigotto.com', last_response.body16 end17 18 def test_with_params19 get '/url/jtadeulopes'20 assert_equal 'http://twitter.com/jtadeulopes', last_response.body21 end22 23 end

Test::Unit$ gem install rack-test


1 # my_app_spec.rb 2 require './my_app' 3 require 'rack/test' 4 require 'rspec' 5 6 set :environment, :test 7 8 describe 'MyApp' do 9 include Rack::Test::Methods10 11 def app12 Sinatra::Application13 end14 15 it "should return url of contact" do16 get '/contact'17 last_response.should be_ok18 last_response.body.should == "http://www.zigotto.com"19 end20 21 it "should return twitter url" do22 get "/url/jtadeulopes"23 last_response.should be_ok24 last_response.body.should == "http://twitter.com/jtadeulopes"25 end26 27 end

Rspec$ gem install rspec




http://twitter.com/jtadeulopes

http://twitter.com/jtadeulopes

Live coding!


Obrigado!


Links• http://www.sinatrarb.com

• https://github.com/sinatra/sinatra

• http://adam.blog.heroku.com/

• http://sinatra-book.gittr.com

• http://www.sinatrarb.com

• http://www.slideshare.net/cpjolicoeur/sinatra-ruby-framework-presentation

• http://railsforkids.com/


https://github.com/cavalle/steak






http://sinatra-book.gittr.com

Sinatra - Primeiros Passos

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