Add ability to post track as track[sharing]=schedule

[noodsradio]

Title: Cannot retrieve all tracks for a user

Issue found of: September 20th, 2020

Endpoint(s):

• POST /tracks

Scope(s):

• OAuth

Steps to reproduce:

curl --request POST \
  --url 'https://api.soundcloud.com/tracks?track[title]=trackname&track[asset_data]=@ PATH_TO_A_FILE&track[sharing]=private

Expected behaviour:

I'd like the ability to post a track with the status of schedule so that it can be autopublished on a desired date. Can this be done via the tracks POST endpoint?

Actual behaviour:

Only private or public are valid values for track[sharing]

[dpreussler]

@noodsradio can you tell us more why would you want that instead of scheduling the upload on your side?
For now you can upload the track as private and set it public manually for publishing date