favio102 / jukebox Goto Github PK

We'd like to build a small Sinatra web application to display all the information from that Jukebox Database. There is a rake for this exercise that will test your sinatra app. Just launch it with the usual rake command.

Install the gems specified in your Gemfile with the following command:

bundle install

This will create an auto-generated Gemfile.lock file which specifies versions for each gem. It locks them actually.

Launch the sinatra app.

ruby lib/app.rb

Look! You can go to http://localhost:4567. You are now running a small webserver and are accessing it with your browser. No more command line!

Sinatra is what we call a web "microframework". It's basically a micro Rails, also following the MVC pattern. The app.rb file acts as the controller. The router layer is handled by Sinatra. We already created a controller method to handle the root of the web app. Sinatra maps the URL in the browser to the right method in app.rb. Take a look at the routing doc for more info.

Don't hesitate to read more about Sinatra in our homemade tutorial (skip the Setup part as you have already a boilerplate in the lib folder).

You should code a homepage / which displays a list of all the artists from the Jukebox. Clicking on an artist name, you should go to the artist page.

You should code an /artists/:id page displaying all albums from this artist. Clicking on an album name should redirect you to the album page.

You should code an /albums/:id page displaying the tracks from this album. Clicking on a track name should redirect you to the track page.

You should code a /tracks/:id page displaying all the track info, and if you have time you can have a look at a video embed API service like youtube to also throw in a video on that page.

When you've finished, use ngrok to share your work on Slack 👌