Refreshing the token after loading it from file

[NotaLabs]

Hello,
i tried to configure my oauthlib the way, that it automaticly refreshes the token, unfortanatly i can`t seem to get it right after loading my token from a file.

import pickle
import os.path
from time import time

# Credentials you get from registering a new application
client_id = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.apps.googleusercontent.com'
client_secret = 'xxxxxxxxxxxxxxxxx'
redirect_uri = 'http:https://localhost'

# OAuth endpoints given in the Google API documentation
authorization_base_url = "https://accounts.google.com/o/oauth2/v2/auth"
token_url = "https://www.googleapis.com/oauth2/v4/token"
scope = [
    "https://picasaweb.google.com/data/",
]

extra = {
    'client_id': client_id,
    'client_secret': client_secret,
}

from requests_oauthlib import OAuth2Session

if not os.path.isfile("token.p"):

    google = OAuth2Session(client_id, scope=scope, redirect_uri=redirect_uri, auto_refresh_url=token_url,auto_refresh_kwargs=extra)


    authorization_url, state = google.authorization_url(authorization_base_url, access_type="offline")
    print('Please go here and authorize,', authorization_url)


    redirect_response = input('Paste the full redirect URL here:')


    google.fetch_token(token_url, client_secret=client_secret,
                       authorization_response=redirect_response)


    pickle.dump(google.token, open("token.p", "wb"))
else:
    gtoken = pickle.load(open("token.p", "rb"))

    #Forcing the token to expire
    gtoken['expires_at'] = time() - 10

    google = OAuth2Session(client_id, token=gtoken)

    #manually refreshing works!
    #client.token = client.refresh_token(token_url, **extra)

google.get('https://www.googleapis.com/oauth2/v1/userinfo')

But it just produces the following error:

C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\python.exe C:/Users/Tim/PycharmProjects/copy+/googleconnect.py
Traceback (most recent call last):
  File "C:/Users/Tim/PycharmProjects/copy+/googleconnect.py", line 50, in <module>
    google.get('https://www.googleapis.com/oauth2/v1/userinfo')
  File "C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\sessions.py", line 487, in get
    return self.request('GET', url, **kwargs)
  File "C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests_oauthlib\oauth2_session.py", line 321, in request
    http_method=method, body=data, headers=headers)
  File "C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\lib\site-packages\oauthlib\oauth2\rfc6749\clients\base.py", line 194, in add_token
    raise TokenExpiredError()
oauthlib.oauth2.rfc6749.errors.TokenExpiredError: (token_expired) 

Process finished with exit code 1

[Lukasa]

In your second branch of code, you don't set the auto_refresh_url or auto_refresh_kwargs, so requests-oauthlib cannot refresh your token for you. Try setting those when you create your OAuth2Session.

[NotaLabs]

I updated my code:

gtoken = pickle.load(open("token.p", "rb"))

    #Forcing the token to expire
    gtoken['expires_at'] = time() - 10

    google = OAuth2Session(client_id, token=gtoken, auto_refresh_url=token_url, auto_refresh_kwargs=extra)

    #google.token = google.refresh_token(token_url, **extra)

    google.get('https://www.googleapis.com/oauth2/v1/userinfo')

r = google.get('https://picasaweb.google.com/data/feed/api/user/default')
#print(r.text)
print(r.status_code)

It still doesn`t seem to work, throwing the following exception:

oauthlib.oauth2.rfc6749.errors.TokenExpiredError

[Lukasa]

Can you provide the full traceback for that exception?

[NotaLabs]

Traceback (most recent call last):
File "C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests_oauthlib\oauth2_session.py", line 321, in request
http_method=method, body=data, headers=headers)
File "C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\lib\site-packages\oauthlib\oauth2\rfc6749\clients\base.py", line 194, in add_token
raise TokenExpiredError()
oauthlib.oauth2.rfc6749.errors.TokenExpiredError: (token_expired)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:/Users/Tim/PycharmProjects/copy+/googleconnect.py", line 53, in
google.get('https://www.googleapis.com/oauth2/v1/userinfo')
File "C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests\sessions.py", line 487, in get
return self.request('GET', url, **kwargs)
File "C:\Users\Tim\AppData\Local\Programs\Python\Python35-32\lib\site-packages\requests_oauthlib\oauth2_session.py", line 335, in request
raise TokenUpdated(token)
requests_oauthlib.oauth2_session.TokenUpdated

[Lukasa]

So the actual exception you're now seeing is TokenUpdated. This is exactly as expected: you have no token_updater method, so we raise this to tell you that the token got updated.

Now, looking at the code (I didn't write this section), I feel like this was intended to be an actual warning, rather than an exception. However, in your case, you should provide a token updater: you're persisting tokens out to file, so if they change, you should make sure you update the file appropriately.

[NotaLabs]

Thank you,
i didn`t know it was necessary to write a token updater.