Presentation slides for East Bay Rails: January 2012.

1. Building Ruby Applications
With Sinatra
January 5, 2012
East Bay Rails Meetup

2. Outline
Sinatra, Bootstrap and RSpec
• Sinatra vs. Rails
• Random Text Generator
• Sinatra Routes
• TDD with RSpec
• Bootstrap

3. Sinatra vs. Rails
• Lighter, rack-based alternative to Rails.
• Pro & Con: Less structure.
• Does not enforce MVC.
• Supports Rails toolchain: Gemfile, etc.

4. Random Text Generator
http://asdftextgenerator.com/
• Serving up asdf and Lorem Ipsum text.
• No back-end, various options available.
• Modular, reusable design.

5. Sinatra Routes
Example route pattern with named parameter
get '/hello/:name' do
# matches "GET /hello/foo" and "GET /hello/bar"
# params[:name] is 'foo' or 'bar'
"Hello #{params[:name]}!"
end

6. TDD with RSpec
Setup in spec_helper
RSpec.configure do |config|
config.include Rack::Test::Methods
end

7. Bootstrap
CSS Framework built with Less by Twitter
get 'stylesheets/bootstrap.css' do
end

8. References
• Sinatra: http://sinatrarb.com/
• Redis: http://redis.io/
Sinatra-Redis Tutorial:
• http://goo.gl/xktVk
Bootstrap.js:
• http://twitter.github.com/bootstrap/