OAuth2 Google Calendar API Redirect Route

redirect.py

@app.route("/oauth2redirect")
def oauth2_redirect():
    """
    The redirect URI that Google hits after user grants access in the OAuth
    consent screen where we fetch the access token from the access code given in the 
    URL and set them in the flask session.
    """
    # grabs the URL response from the redirect after auth
    authorization_response = request.url

    return "OK" # placeholder