🎶 A time machine for your Spotify tunes!
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README.md

TuneMachine

🎶 A time machine for your Spotify tunes!

This project was made by the ScottyLabs' team, consisting of Oscar Bezi, Justin Gallagher, Min Zhou, and Jake Zimmerman at a16z's Battle of the Hacks v2 in June 2015.

See it live at http://tunemachine.herokuapp.com.

TuneMachine lets you take snapshots of your Spotify playlists and restore to a specific version at any time. It has a super simple interface. Once you log in, you see all of your playlists. From here, you can see a list of snapshots you've taken of each playlist, and for each snapshot you can see a quick overview of what the playlist looked like at that point in time. This makes it super useful for keeping track of what's changed over time inside collaborative playlists.

main TuneMachine app page

The app itself is written entirely in CoffeeScript on the backend and CJSX (CoffeeScript + JSX syntax for React) on the frontend. It uses Sass for CSS templating. It's been really fun to build, mostly because of how nice CoffeeScript and React are to use. Take a peek under the hood and see for yourself!

Setup

There are two ways to get set up; you can get set up for development or for The Real World.

Development

The development environment requires a Node.js setup. First, clone this repo somewhere, then run:

$ npm install

# If you want a fancy development environment:
$ npm install -g nodemon

Next, either install the Heroku toolbelt, or make sure you have the foreman gem installed.

Install the Heroku toolbelt package installer from Heroku

or

$ brew install heroku-toolbelt
$ gem install foreman

Next up, you'll need to create an application on Spotify to get an app client_id and client_secret. Add a Redirect URI, and point it at http://localhost:5000/auth/oauth2callback.

Replace MYAPP_NAME as necessary. Hit "Save". Once you have a client id and client secret, fill in the appropriate values in .env.template after renaming it to .env.

$ cp .env.template .env

(Edit .env)

You can ignore the other values that were in .env.template. They have sane defaults configured in config.coffee.

Last up, let's install MongoDB:

$ brew install mongo

You should now be all good to get started developing. This is a bunch of commands that might be useful:

# To start the mongo instance:
$ mongod --dbpath ./data

# To run, watching for changes to backend coffee files:
NODE_ENV=development foreman start

# To run, not watching for changes on the backend
foreman start

# To watch and recompile frontend static assets
npm run watch

# To compile the frontend static assets once
npm run build

# To clean all compiled static assets
npm run clean

The Real World

This app can be deployed with Heroku. First, clone this repo somewhere.

Next, either install the Heroku toolbelt, or make sure you have the foreman gem installed.

Install the Heroku toolbelt package installer from Heroku

or

$ brew install heroku-toolbelt
$ gem install foreman

You'll need to choose a name (like "myapp") for your app on Heroku, then create it at the command line:

$ heroku create <myapp's name>

Next up, you'll need to create an application on Spotify to get an app client_id and client_secret. Add a Redirect URI, and point it at http://MYAPP_NAME.herokuapp.com/auth/oauth2callback.

Replace MYAPP_NAME as necessary. Hit "Save". Once you have a client id and client secret, fill in the appropriate values in .env.template after renaming it to .env.prod.

You'll also want to uncomment DOMAIN and set it to http://MYAPP_NAME.herokuapp.com.

$ cp .env.template .env.prod

(Edit .env.prod)

The last thing to configure is setting up a MongoDB database. You can either use a free service like MongoLab for this or set up and host your own. Once you have a database URI that you can use to connect to the database, add it in .env.prod as DB_URL.

Now push this config to Heroku:

$ heroku config:push -e .env.prod

We should now be good to go. Push the code to Heroku to deploy:

$ git push heroku master

TODO

These are some things that might be fun to implement at some time in the future but in all likelihood might never be.

  • Make it work on mobile
  • Render errors to the user using popup "toasts"
  • Add permalinks and client-side routing using React Router
  • Use server-side React for rendering the app initially on the backend
  • Use Flux to control the flow of data throughout the app
  • Add support for "forking" and "merging" changes from playlists you don't have write access to.

License

MIT License. See LICENSE.