playlists.removeItems uses wrong format in body of request

[liam-k]

Bug Report

The PlaylistManager.removeItems() method uses a deprecated format for the request.

What i expected:

The DELETE request to succeed and the track to be deleted.

What actually happened:

I get the error message
SpotifyAPIError: {"error":{"status":400,"message":"JSON body doesn't conform to specification"}}

Upon investigating I found that the call looks like this: 

      url: 'https://api.spotify.com/v1/playlists/16N...Unimd/tracks',
      method: 'delete',
      data: '{"uris":[{"uri":"spotify:track:2wwXXU...5"}]}' <--- WRONG SYNTAX HERE

Note the "uris" before the array of track objects.

The Spotify API docs describe the API as expecting this format:

"tracks": [ { "uri": "string" } ],
(Source)

Which causes the issue.

To reproduce this bug:

Create a client (here I do it with an existing refresh token):

import * as Spotify from "spotify-api.js"
    const client = await Spotify.Client.create({
        token: {
            clientID: SPOTIFY_CLIENT_ID,
            clientSecret: SPOTIFY_CLIENT_SECRET,
            refreshToken: refresh_token
        }
    });

Then use the removeItems method to make the DELETE request to the API:

await client.playlists.removeItems(playlist.spotify_uri, [`spotify:track:${song_uri}`])

• Library Version: 9.2.5

Anyway, thanks for your work! It’s made my life easier in the instances where it does work.

[scientific-dev]

There are no developers working on this project at this moment so, it will take few months (2 or 3) for me to restart this (because of my personal problems). If you could, you can do a pull request fixing this issue.