Getting a 401 Unauthorised back from /tracks endpoint when attempting to upload track

[aheadfullofcode]

Hi,

My client is getting fresh issues with the track upload endpoint (/tracks). it's returning a 401 error.

I've checked and I have a valid token. Nothing has changed code wise.

{ "id": "1413", "title": "Talk Club - Men's Mental Fitness w/ Jamie Lee & Gavin Thorpe", "startDateTime": "2026-01-13T14:00:00.000Z", "time": "14:00", "description": "An enlightening conversation with Gavin Thorpe — musician & co-founder of male mental health charity Talk Club — exploring mental fitness, human connection & the importance of men coming together to be truly seen & heard. We reflect on what Talk Club is, why it matters & how music has shaped our lives as a source of expression, resilience & meaning.", "resident": "residents/sonic-cocktail-w-jamie-lee", "guests": "", "genres": "[122,101,11,89,199]", "tracklist": "[{\"id\":\"2\",\"title\":\"Too Good For Giving Up\",\"artist\":\"Liam Gallagher\",\"startTime\":\"00:09:12\",\"endTime\":\"00:13:17\",\"color\":\"rgba(0, 0, 200, 0.3)\"},{\"id\":\"3\",\"title\":\"Changes\",\"artist\":\"David Bowie\",\"startTime\":\"00:14:02\",\"endTime\":\"00:17:16\",\"color\":\"rgba(200, 0, 0, 0.3)\"},{\"id\":\"4\",\"title\":\"Now & Then\",\"artist\":\"The Beatles \",\"startTime\":\"00:18:52\",\"endTime\":\"00:22:59\",\"color\":\"rgba(200, 100, 0, 0.3)\"},{\"id\":\"5\",\"title\":\"Cloudbusting\",\"artist\":\"Kate Bush\",\"startTime\":\"00:23:25\",\"endTime\":\"00:28:37\",\"color\":\"rgba(128, 0, 128, 0.3)\"},{\"id\":\"6\",\"title\":\"Lover, You Should Have Come Over\",\"artist\":\"Jeff Buckley\",\"startTime\":\"00:28:37\",\"endTime\":\"00:35:15\",\"color\":\"rgba(0, 128, 128, 0.3)\"},{\"id\":\"7\",\"title\":\"No Hard Feelings\",\"artist\":\"Gavin Thorpe\",\"startTime\":\"00:37:05\",\"endTime\":\"00:41:13\",\"color\":\"rgba(255, 192, 203, 0.3)\"},{\"id\":\"8\",\"title\":\"Home\",\"artist\":\"Depeche Mode\",\"startTime\":\"00:41:29\",\"endTime\":\"00:46:58\",\"color\":\"rgba(165, 42, 42, 0.3)\"},{\"id\":\"9\",\"title\":\"Soul To Save\",\"artist\":\"Gavin Thorpe & Talk Club\",\"startTime\":\"00:46:58\",\"endTime\":\"00:50:30\",\"color\":\"rgba(255, 215, 0, 0.3)\"}]", "status": "submitted", "audioUrl": "https://noods-uploader-shows.lon1.digitaloceanspaces.com/talk-club---mens-mental-fitness-w-jamie-lee--gavin-thorpe-13th-january-26.mp3?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=DO801A8GVQRVWG8WER7V%2F20260113%2Flon1%2Fs3%2Faws4_request&X-Amz-Date=20260113T115300Z&X-Amz-Expires=3600&X-Amz-Signature=8b3f2a469e66626b56a9a03573292f045ec4f39ba7152b05611ab5a581093535&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject", "imageUrl": "https://nrytjyopeimxwzjqmyrm.supabase.co/storage/v1/object/sign/images/image_1767522373962_blob?token=eyJraWQiOiJzdG9yYWdlLXVybC1zaWduaW5nLWtleV84NmFiNjE3Zi1hZDYzLTQ1YzAtYWQwMi00ZTcxMTcwMTAwMjQiLCJhbGciOiJIUzI1NiJ9.eyJ1cmwiOiJpbWFnZXMvaW1hZ2VfMTc2NzUyMjM3Mzk2Ml9ibG9iIiwiaWF0IjoxNzY4MzA1MTgwLCJleHAiOjE3NjgzMDg3ODB9.AP3Rt5_O0dX7xLAFzPMXAXN2Jn8Ypa_VdncqBbleZrA", "updatedBy": "e31b2aa2-7713-4279-bb8c-79da7e674159", "guestmix": false, "featuredmix": false }

Response from SoundCloud

0:{"a":"$@1","f":"","b":"tqKUMHmAyzzL566o1Xjhz"} 1:{"success":false,"error":"Soundcloud API error (401)"}

Any clues as to why this is happening would be much appreciated!

[dpreussler]

@aheadfullofcode want to share what the issue was?

[aheadfullofcode]

Hmm It's odd. I was getting a 401 consistently - then that stopped and I was getting a different error about consecutive hyphens in the permalink (url) value i.e --- Not sure why this is suddenly happening as I'm sure track names have contained hyphens in the past... Has some of the validation changed on your side?

[aheadfullofcode]

Hi @dpreussler My client is getting the 401 again - any idea why this may be?

[dpreussler]

Can you post a curl (without client_id or token) ?