This document discusses how to build a simple Sinatra web application and deploy it to Heroku. It introduces Sinatra as a lightweight Ruby web framework, provides example Sinatra code, and walks through setting up a Sinatra project with the necessary gems and files. It then explains how to use the Heroku gem to deploy the Sinatra application to Heroku with steps like creating a Heroku app, initializing a Git repository, and pushing the code to Heroku to launch the app.

1. Sinatra + Heroku (0..Website.new).count <30.minutes By Jeremy Woertink

3. Rack application

4. Ruby gem

6. Not Convinced Yet?

7. # gangsta.rb ['rubygems','sinatra', 'haml'].each { |_gem| require _gem } set :public, 'public' configure { SEO_DEFAULTS = { :title => 'Sinatra Fun' } } get '/'do @languages = ['Ruby', 'Erlang', 'NodeJS', 'brainfuck'] haml :index end get '/language/:name'do @language = "#{params[:name].capitalize} is Sweet!" haml :language end __END__ @@layout !!! 5 %html %head %title= SEO_DEFAULTS[:title] %link{:href => '/styles.css', :rel => 'stylesheet'} %body #content = yield @@index %h2 Language Fun! %ul - @languages.each do |lang| %li %a{:href=>"/language/#{lang.downcase}"}=lang @@language %h2= @language %a{:href => '/'} Go Back!

8. Put that in your pipe and smoke it!

9. Awesome! How do I get it? $ gem install sinatra Run your app with $ ruby gangsta.rb

11. Easy setup & Deploy

12. Scalable Cloud Platform

13. Lowest account is FREE!!!!

14. Ruby gem

15. interfaced with git

16. Purchased by Salesforce for $212M

18. Gem for hosting? HELL YEAH GEM FOR HOSTING! $ gem install heroku (Be sure you have git installed already)

20. heroku gem

21. bundler gem

22. haml gem (not required)

23. git

25. # config.ru require'rubygems' begin require'bundler' Bundler.require require'./app' run Sinatra::Application rescueLoadError => err warn "Where's bundler? #{err}" end

26. # Gemfile source "http://rubygems.org" gem "bundler" gem "sinatra" gem "heroku" gem "haml"

28. SampleApp/config.ru

29. SampleApp/Gemfile

30. SampleApp/views/layout.haml

31. SampleApp/views/index.haml

32. SampleApp/views/language.haml

34. $ bundle install $ git init $ git add . $ git commit -avm "first commit" $ rackup $ heroku create $ git push heroku master <- App should run on localhost:9292

35. BAM! How do you like them apples?! Questions?