Tracks on private playlist (with secret_token) generating 404 error on stream

[alexweinstein]

Streaming a private track from a private playlist used to work fine as long as you used the playlist's secret token. It now generates a 404. This started happening yesterday (Dec. 7, 2016).

SC.initialize({
    client_id: xxxxxxxxxxxxxxxx,
    redirect_uri: xxxxxxxxxxxxxxxx
});
SC.stream('/tracks/[trackid], [playlist_secret_token]).then(function(data) {
    data.play();
}).catch(function(error) {
    alert('Error! ' + error.message);
});

The error:
Failed to load resource: the server responded with a status of 404 (Not Found)

What's interesting is that this generates an error:

https://api.soundcloud.com/tracks/[trackid]?secret_token=[playlist_secret_token]&format=json&client_id=xxxxxxxxxxxxxx

While this resolves correctly:

https://api.soundcloud.com/tracks/[trackid]/stream?secret_token=[playlist_secret_token]&format=json&client_id=xxxxxxxxxxxxxx

Is anyone else having this problem? Did anything change in regards to playlist secret tokens?

[diurnalist]

Hi @alexweinstein, I presume you have some sort of access to the track's secret token if you have the playlist's secret token (I think the secret_token field is returned for those private tracks.) If you have access to that, I would simply use the track's secret token for any request involving that track. The fact that playlist secret tokens can work for private tracks is a bit of a holdover from older "rules" of the product and might not necessarily work in the future, but requesting a secret track with its secret_token should continue to be supported. Does that help?

[alexweinstein]

@diurnalist That does help. Thank you for jumping on this.

I should add one more thing. Tell me if this affects your response at all.

When calling a private playlist with it's secret_token the tracks returned have that same secret_token in their stream_url.

For example:
https://api.soundcloud.com/playlists/280621215?secret_token=s-6AMBa&format=json&client_id=xxxxxxxxxxx

Return of one track from that playlist (note the stream_url and uri have that same secret_token from the playlist):
"kind": "track", "id": 296005616, "created_at": "2016/12/03 12:18:13 +0000", "user_id": 101050993, "duration": 34145, "commentable": true, "state": "finished", "original_content_size": 993149, "last_modified": "2016/12/08 22:58:37 +0000", "sharing": "private", "tag_list": "Folk \"Pedal Steel\" hello", "permalink": "beyond-the-screen", "streamable": true, "embeddable_by": "all", "downloadable": false, "purchase_url": null, "label_id": null, "purchase_title": null, "genre": "Electronic", "title": "Beyond the Screen", "description": "", "label_name": null, "release": "", "track_type": null, "key_signature": null, "isrc": null, "video_url": null, "bpm": null, "release_year": null, "release_month": null, "release_day": null, "original_format": "mp3", "license": "all-rights-reserved", "uri": "https://api.soundcloud.com/tracks/296005616?secret_token=s-6AMBa", "user": { "id": 101050993, "kind": "user", "permalink": "asweinstein", "username": "Alexander Seth", "last_modified": "2016/12/09 03:01:45 +0000", "uri": "https://api.soundcloud.com/users/101050993", "permalink_url": "http://soundcloud.com/asweinstein", "avatar_url": "https://i1.sndcdn.com/avatars-000281865754-nri1qm-large.jpg" }, "attachments_uri": "https://api.soundcloud.com/tracks/296005616/attachments", "permalink_url": "http://soundcloud.com/asweinstein/beyond-the-screen/s-6AMBa", "artwork_url": null, "waveform_url": "https://w1.sndcdn.com/rdGwuQ37GPml_m.png", "stream_url": "https://api.soundcloud.com/tracks/296005616/stream?secret_token=s-6AMBa", "playback_count": 6, "download_count": 0, "favoritings_count": 2, "comment_count": 0

[alexweinstein]

@diurnalist I don't understand. Is there any other way to call a private playlist and stream the tracks?