TokenExpiredError -- token not refreshing?

[chrisroat]

When I first run this example and login, it works correctly - I can login and it reports my email address. If I refresh the page a few hours later, I get a TokenExpiredError.

I am using Chrome on a Mac, turned off all extensions, and allow all cookies.

Chrome: Version 98.0.4758.109 (Official Build) (x86_64)

MacOS: 12.2.1

Command:

FLASK_APP=google.py FLASK_ENV=development flask run

`pip freeze` output

blinker==1.4
certifi==2021.10.8
charset-normalizer==2.0.12
click==8.0.4
Flask==2.0.3
Flask-Dance==5.1.0
gunicorn==20.1.0
idna==3.3
itsdangerous==2.1.0
Jinja2==3.0.3
MarkupSafe==2.1.0
oauthlib==3.2.0
python-dotenv==0.19.2
requests==2.27.1
requests-oauthlib==1.3.1
urllib3==1.26.8
URLObject==2.4.3
Werkzeug==2.0.3

traceback

Traceback (most recent call last):
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/flask/app.py", line 2091, in __call__
    return self.wsgi_app(environ, start_response)
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/flask/app.py", line 2076, in wsgi_app
    response = self.handle_exception(e)
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/flask/app.py", line 2073, in wsgi_app
    response = self.full_dispatch_request()
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/flask/app.py", line 1518, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/flask/app.py", line 1516, in full_dispatch_request
    rv = self.dispatch_request()
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/flask/app.py", line 1502, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File "/Users/chrisroat/flask-dance-google/google.py", line 16, in index
    resp = google.get("/oauth2/v1/userinfo")
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/requests/sessions.py", line 542, in get
    return self.request('GET', url, **kwargs)
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/flask_dance/consumer/requests.py", line 192, in request
    return super().request(
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/requests_oauthlib/oauth2_session.py", line 483, in request
    url, headers, data = self._client.add_token(
  File "/Users/chrisroat/flask-dance-google/venv/lib/python3.9/site-packages/oauthlib/oauth2/rfc6749/clients/base.py", line 217, in add_token
    raise TokenExpiredError()
oauthlib.oauth2.rfc6749.errors.TokenExpiredError: (token_expired)

[gg4u]

Got the same error!

Have you maybe found a solution, @chrisroat ?

[chrisroat]

I found you need to catch the error and handle it, something like:

singingwolfboy/flask-dance#35 (comment)

[holdenweb]

See singingwolfboy/flask-dance#35 (comment) - deleting expired tokens from the flask session in a before_request function appears to do the trick!