danmactough/spotify-dedup

Remove duplicates from your Spotify Playlists

A Spotify Playlist Duplicator

Have you ever wanted to remove duplicated tracks from your Spotify Playlists? Now you can detect and remove them using Spotify dedup.

This project uses the Spotify Web API for managing playlists. Just log in and it will traverse your playlists, finding tracks that appear multiple times with the same identifier (Spotify URI) in a given playlist.

If it finds duplicates, they can be removed just pushing a button. And since it doesn't create a whole new playlist, it keeps its followers.

Try it

You can check it out on https://mact.me/spotify-album-merge/ or run it locally.

Install and run

Install the dependencies:

npm install

Run it:

grunt serve

About the tools used and implementation details

Spotify Web API and Promises

This app is a good example of how to traverse a user's library without incurring in rate limit. Have a look at the code and see how Promises and a Promise Queue are used to control the amount of requests sent to the Spotify Web API. If you are interested in throttling promises, check out promise-throttle.

Bootstrap and uncss

The project uses Twitter Bootstrap. I know you might not feel like it's cool, but combined with uncss allows us to remove all the unused CSS rules.