Spotipy: recommendation invalid request

[Mariog75]

when making a recommendations request such as:
recommend = sp.recommendations(target_energy = 0.5)

I get the error:
Traceback (most recent call last):
File "script.py", line 62, in
recommend = sp.recommendations(target_energy = 0.5)
File "/usr/local/lib/python2.7/dist-packages/spotipy/client.py", line 804, in recommendations
return self._get('recommendations', **params)
File "/usr/local/lib/python2.7/dist-packages/spotipy/client.py", line 146, in _get
return self._internal_call('GET', url, payload, kwargs)
File "/usr/local/lib/python2.7/dist-packages/spotipy/client.py", line 124, in _internal_call
headers=r.headers)
spotipy.client.SpotifyException: http status: 400, code:-1 - https://api.spotify.com/v1/recommendations?target_energy=0.5&limit=20:
invalid request

any particular reason why this is giving an invalid request?

[smyrbdr]

Looks like you didn't get token authorization for the session. The error message says "no token provided"

[JessicaMartini212887]

I think that is because you have to put at least one of these parameters in the request:

• seed artists;
• seed genres;
• seed tracks.
  Target_energy isn't sufficient.

[stephanebruckert]

@JessicaMartini212887 is correct, we need to update the doc accordingly

[AkiMosi]

I think that is because you have to put at least one of these parameters in the request:

• seed artists;
• seed genres;
• seed tracks.
  Target_energy isn't sufficient.

At least one is enough? I tried just by giving the seed track. And I still got an error stating 'invalid request'. Or should we give more than one track_id?

[stephanebruckert]

@AkiMosi can you please share the exact request being made + full stacktrace/error

And does that same request work if you try it on this web UI? https://developer.spotify.com/console/get-recommendations/

[AkiMosi]

@AkiMosi can you please share the exact request being made + full stacktrace/error

And does that same request work if you try it on this web UI? https://developer.spotify.com/console/get-recommendations/

I found what I did wrong with the code, by going through issue #305
I did not give it as a list, I just gave the id as a string.

Thanks for your quick response, and it would be great if you add a little code snippet in the examples of the documentation.

[stephanebruckert]

Cool! Please feel free to open a PR to add an example

Just for reference, since this is about types I'm linking this issue https://github.com/plamere/spotipy/issues/439

[mikedesu]

When attempting to pull down recommendations, I am getting the following error:

HTTP Error for GET to https://api.spotify.com/v1/recommendations returned 400 due to invalid request
Traceback (most recent call last):
  File "/home/darkmage/.local/lib/python3.8/site-packages/spotipy/client.py", line 245, in _internal_call
    response.raise_for_status()
  File "/usr/lib/python3/dist-packages/requests/models.py", line 940, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 400 Client Error: Bad Request for url: https://api.spotify.com/v1/recommendations?limit=20&seed_artists=Katy+Perry

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "bug_recommendations.py", line 12, in <module>
    main()
  File "bug_recommendations.py", line 9, in main
    results = sp.recommendations(seed_artists=artist_list)
  File "/home/darkmage/.local/lib/python3.8/site-packages/spotipy/client.py", line 1597, in recommendations
    return self._get("recommendations", **params)
  File "/home/darkmage/.local/lib/python3.8/site-packages/spotipy/client.py", line 291, in _get
    return self._internal_call("GET", url, payload, kwargs)
  File "/home/darkmage/.local/lib/python3.8/site-packages/spotipy/client.py", line 261, in _internal_call
    raise SpotifyException(
spotipy.exceptions.SpotifyException: http status: 400, code:-1 - https://api.spotify.com/v1/recommendations?limit=20&seed_artists=Katy+Perry:
 invalid request, reason: None

I followed the API documentation, here is the script generating the error:

import spotipy
from spotipy.oauth2 import SpotifyClientCredentials

def main():
    sp = spotipy.Spotify( auth_manager=SpotifyClientCredentials( client_id="CLIENT_ID", client_secret="CLIENT_SECRET"))
    result_amount = 5
    artist_list = [ "Katy Perry" ]
    results = sp.recommendations(seed_artists=artist_list)

if __name__ == "__main__":
    main()

[stephanebruckert]

@mikedesu see https://github.com/plamere/spotipy/issues/290#issuecomment-399616161

[mikedesu]

@mikedesu see #290 (comment)

My apologies, the issue isn't answered of in that comment, hence the post.

However, I realize the problem now. The artist list must be comprised of artist IDs, not artist names.

Thanks.