Question:

I have been trying to use the Soundcloud API to add and remove songs from groups. I am using the soundcloud-python wrapper to enable me to do this easily.

I have got both Auth flows working correctly (either using OAuth2 or using user credentials directly), and I can use the python client to grab information about the logged in user etc. by performing calls as follows:

print client.get('/me').username

This indicates to me that I have correctly passed authorisation, and as I say, I have got this working via both methods.

My problem is when I try to make the following request which is provided as an example to add/remove songs from groups, I will always get a 404 error, whether or not the track already exists in the group (from the example off the Soundcloud API docs, under "Contributing Sounds to a Group"):

# contribute track to group group = client.put('/groups/%d/contributions/%d' % (group.id, track.id))

If I perform any function on the /groups/{group-id}/contributions/{track-id} via the client object, I will always get a 404 error. If I am not authenticated I will get a 401 error. I have made 100% sure that I have used working group_id/track_id combinations by testing them through the API console, and hard-coding values where necessary to prove the operation.

This is what confuses me - if I use the same form of URI which failed with the python wrapper in the API Console (on the Soundcloud API website), and I am authenticated through OAuth, then the GET/PUT and DELETE all behave as expected on the same group_id's and track_id's which fail through the soundcloud-python wrapper.

Has anyone else had any issues with this? Have they got this working?

Many thanks in advance for any help!

The 404 error suggest that you are not authenticated. If that isn't the problem then, <a href="http://developers.soundcloud.com/docs/api/guide#uploading" rel="nofollow">http://developers.soundcloud.com/docs/api/guide#uploading</a> says (in "Contributing a Sound to a Group"):

... Similarly, you can also remove contributions. (python example)

import soundcloud # create a client object with access token client = soundcloud.Client(access_token='YOUR_ACCESS_TOKEN') # delete track id 59 from group id 123 client.delete('/groups/123/contributions/59')

<h2>Update</h2>

The pull request I link to below was accepted and merged into the API wrapper.

Just grab the updated source from Github, and this should be fixed.

<em>p.s. Sorry for the late update.</em>

<hr />

The /contributions endpoint is buggy - see <a href="https://github.com/soundcloud/soundcloud-python/issues/21" rel="nofollow">this github issue</a>.

I've managed to hack the API to make this work until the bug is fixed on SoundCloud's side. Make the following amendments to the <kbd>client.py</kbd> file:

def _resolve_resource_name(self, name): [...] name = name.rstrip('/').lstrip('/') if name[-13:] == 'contributions': return '%s%s/%s' % (self.scheme, self.host, name) return '%s%s/%s.json' % (self.scheme, self.host, name)

Or see <a href="https://github.com/soundcloud/soundcloud-python/pull/28" rel="nofollow">this pull request</a>.