Best way to use Spotify inside an API?

[Jeoffreybauvin]

Hi,

I'm using Spotipy in a Flask API (full rest). I'm trying to use util.prompt_for_user_token for login, and it's working.

But now, I want to create an entrypoint /authenticate, which send me back the URL that util.prompt_for_user_token is trying to open in my browser.

I don't see any information in the documentation to do so. Can I catch this URL without opening my browser ?

[MaZderMind]

@Jeoffreybauvin In the Case described by you I would not use util.prompt_for_user_token, because it clearly states to be a utility to get you up and running quickly. When Implementing a custom RESt-API, I would instead operate the required Client-Classes directly.

When removing all the input-checking and comments from util.prompt_for_user_token there is not a lot left:

def redirect_user_to_oauth(username, scope=None, client_id=None,
                          client_secret=None, redirect_uri=None,
                          cache_path=None):

…
    sp_oauth = oauth2.SpotifyOAuth(client_id, client_secret, redirect_uri,
                                   scope=scope, cache_path=cache_path)
…
    token_info = sp_oauth.get_cached_token()
    if not token_info:
        auth_url = sp_oauth.get_authorize_url()
        return auth_url


def handle_callback(code):
    token_info = sp_oauth.get_access_token(code)
    return token_info['access_token']

As an API-Implementor you have to provide the requisite options to oauth2.SpotifyOAuth and have it request an auth_url for you. Depending on the Implementation of your REST-API I would return this URL to my client in order for it to open it in a popup or otherwise have my user access it.

After the OAuth2 dance, the user is redirected to the redirect_uri you provided, which should be some url in your application (it might also be a local server if your writing a native app). The supplied code is then transferred to your REST-API in a second call, which can use it to request token_info on you users behalf.

[stephanebruckert]

For now this provides good inspiration to solve the issue #435 (comment)

[stephanebruckert]

Just added an example here https://github.com/plamere/spotipy/blob/master/examples/app.py

[andrewhansen89]

Just added an example here https://github.com/plamere/spotipy/blob/master/examples/app.py

Doesn't this example need a cache_path or username?