We're going to use Sinatra to get the latest @flatironschool tweets.

Go to each file sequentially and read the comments. They should guide you to the next file in the application's path. Below is the order of the application as well.

First, the Anatomy of a Basic Sinatra App

├── Gemfile
├── README.md
├── Rakefile
├── app.rb # the main web server program
├── config
│   └── environment.rb # project manifest where files are required
├── config.ru # after requiring all of the files, this runs App (app.rb)
├── models # classes and ActiveRecord models
├── public # front-end stuff
│   ├── images
│   ├── javascripts
│   └── stylesheets
├── spec # tests
│   ├── sinatra_twitter_todo_spec.rb
│   └── spec_helper.rb
└── views # template files that render HTML

Go through these files sequentially and follow the comments:

1. config/environment.rb
2. models/get_tweets.rb
3. app.rb
4. views/tweets.erb
5. config.ru

Run bundle install and then rackup. Then go to http://localhost:9292 to see the tweets! Play around with getting tweets for other search queries, or, tweet @flatironschool and see your tweet! If you make any changes to the code, you'll need to restart the server and rackup again.

There's one test, which should already be passing. Let's take a look at it:

it "handles GET to '/'" do 
  get '/'
  expect(last_response).to be_ok
  expect(last_response.status).to eq(200)
end

We're using the Rack::Test module in our specs to make a get request to '/'. The tests expects the status response to be ok (aka, 200). Refer back to the Status Codes lesson.

In other words, what this test is expecting is that all of our code, from start to finish (our code in our GetTweets class, our get method in app.rb, and our rendering of data in our ERB file) results in an ok (200) response from our server.

• Sinatra Routes
• ERB Templates with Sinatra
• Rack Middleware
• Rack::Test Module in Sinatra

View Sinatra Twitter Todo on Learn.co and start learning to code for free.