Adds a Source Share to an available video. Don't forget to use POST as the request method.
https://streamio.com/api/v1/videos/video_id/source_shares.format
POST
201
Pretending we have a video with id 68710dfa866a47b7f000006a and we wish to add a new source share.
curl -u username:password \
-F title="Download for evaluation" \
-F max_downloads=5 \
-F expiration_hours=24 \
https://streamio.com/api/v1/videos/68710dfa866a47b7f000006a/source_shares.json