Hi

Im having problems with my Django app running on Heroku and implementing the Zoho arm Python SDK. 

Im setting up the tokens as follows:

os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'wills_online.settings')
django.setup()


def zoho_refresh_token(code):
    """ supply a self client token from the zoho api credentials from web site """

    zoho_config = {'apiBaseUrl':"https://www.zohoapis.com",
                   'currentUserEmail': settings.ZOHO_CURRENT_USER_EMAIL,
                   'apiVersion': 'v2',
                   'sandbox': 'False',
                   'applicationLogFilePath': '',
                   'client_id': settings.ZOHO_CLIENT_ID,
                   'client_secret': settings.ZOHO_CLIENT_SECRET,
                   'redirect_uri': settings.ZOHO_REDIRECT_URI,
                   'token_persistence_path': settings.ZOHO_PATH,
                   'mysql_username': '',
                   'mysql_password': '',
                   'mysql_port': ''}

    print('working')
    address = f'https://accounts.zoho.com/oauth/v2/token?code={code}&redirect_uri={settings.ZOHO_REDIRECT_URI}&client_id={settings.ZOHO_CLIENT_ID}&client_secret={settings.ZOHO_CLIENT_SECRET}&grant_type=authorization_code'
    response = requests.post(address)
    data = response.json()
   zcrmsdk.ZCRMRestClient.initialize(zoho_config)
    oauth_client = zcrmsdk.ZohoOAuth.get_client_instance()
    refresh_token = data['refresh_token']
   oauth_client.generate_access_token_from_refresh_token(refresh_token, settings.ZOHO_CURRENT_USER_EMAIL)
    print(refresh_token)
    print('finished')


if __name__ == '__main__':
    zoho_refresh_token(argv[1])

This then creates the access token and refresh token and places them in the ZCRMModule_oauthtokens.pkl file specified in the path.  No problems here. 

I then in py settings.py file I have:

ZOHO_CLIENT_ID = config('ZOHO_CLIENT_ID')
ZOHO_CLIENT_SECRET = config('ZOHO_CLIENT_SECRET')
ZOHO_REDIRECT_URI = config('ZOHO_REDIRECT_URI')
ZOHO_CURRENT_USER_EMAIL = 'jamjnkjknk9r@mylastwill.co.uk'
ZOHO_PATH = os.path.join(BASE_DIR, 'wills_online', 'zoho')


zoho_config = {'apiBaseUrl': "https://www.zohoapis.com",
               'currentUserEmail': ZOHO_CURRENT_USER_EMAIL,
               'apiVersion': 'v2',
               'sandbox': 'False',
               'applicationLogFilePath': ZOHO_PATH,
               "token_persistence_path": ZOHO_PATH,
               'client_id': ZOHO_CLIENT_ID,
               'client_secret': ZOHO_CLIENT_SECRET,
               'redirect_uri': ZOHO_REDIRECT_URI,
               'mysql_username': '',
               'mysql_password': '',
               'mysql_port': ''}

And then in a views.py file I have:

class ZohoRunOnce:
    def __init__(self):
        self.already_run = False

    def run_once(self):
        if not self.already_run:
            print('zoho init run once')
            ZCRMRestClient.initialize(zoho_config)
            self.already_run = True


zoho_init = ZohoRunOnce()
zoho_init.run_once()


def zoho_callback():
    returnHttpResponse(200)


@start_new_thread
def zoho_personal_details(request):
    """ updates or create a user account on zoho on profile completion """

    personal_details_ob = PersonalDetails.objects.get(user=request.user)
    zoho_ob = ZoHoRecord.objects.get(user=request.user)

    try:
        ifzoho_ob.account:
            record = zcrmsdk.ZCRMRecord.get_instance('Accounts', zoho_ob.account)
            record.set_field_value('Account_Name', request.user.email)
            record.set_field_value('Name', personal_details_ob.full_name)
            record.set_field_value('Email', request.user.email)
            record.set_field_value('Address_Line_1', personal_details_ob.address_line_1)
            record.set_field_value('Address_Line_2', personal_details_ob.address_line_2)
            record.set_field_value('Post_Town', personal_details_ob.post_town)
            record.set_field_value('Post_Code', personal_details_ob.post_code)
            record.set_field_value('Dob_Day', personal_details_ob.dob_day)
            record.set_field_value('Dob_Month', personal_details_ob.dob_month)
            record.set_field_value('Dob_Year', personal_details_ob.dob_year)
            record.set_field_value('Gender', personal_details_ob.sex)
            record.set_field_value('Marital_Status', personal_details_ob.marital_status)
            record.set_field_value('Partner_Name', personal_details_ob.partner_full_name)
            record.set_field_value('Partner_Gender', personal_details_ob.partner_gender)
            record.set_field_value('Partner_Email', personal_details_ob.partner_email)
            record.set_field_value('Children', personal_details_ob.children)
            record.set_field_value('Pets', personal_details_ob.pets)
            record.update()
        else:
            user = ZCRMUser.get_instance(name='James Alexander')
            record = ZCRMRecord.get_instance('Accounts')
            record.set_field_value('Account_Owner', user)
            record.set_field_value('Account_Name', request.user.email)
            record.set_field_value('Name', personal_details_ob.full_name)
            record.set_field_value('Email', request.user.email)
            record.set_field_value('Address_Line_1', personal_details_ob.address_line_1)
            record.set_field_value('Address_Line_2', personal_details_ob.address_line_2)
            record.set_field_value('Post_Town', personal_details_ob.post_town)
            record.set_field_value('Post_Code', personal_details_ob.post_code)
            record.set_field_value('Dob_Day', personal_details_ob.dob_day)
            record.set_field_value('Dob_Month', personal_details_ob.dob_month)
            record.set_field_value('Dob_Year', personal_details_ob.dob_year)
            record.set_field_value('Gender', personal_details_ob.sex)
            record.set_field_value('Marital_Status', personal_details_ob.marital_status)
            record.set_field_value('Partner_Name', personal_details_ob.partner_full_name)
            record.set_field_value('Partner_Gender', personal_details_ob.partner_gender)
            record.set_field_value('Partner_Email', personal_details_ob.partner_email)
            record.set_field_value('Children', personal_details_ob.children)
            record.set_field_value('Pets', personal_details_ob.pets)
            response = record.create()
            # save account id to db for future updates
            zoho_ob.account = response.details['id']
            zoho_ob.save()

    exceptZCRMException asex:
        logger.log(1, ex.status_code)
        logger.log(1, ex.error_message)
        logger.log(1, ex.error_details)
        logger.log(1, ex.error_content)
        print(ex.status_code)
        print(ex.error_message)
        print(ex.error_content)
        print(ex.error_details)

The error message I getting after the initial access token has expired is:

 2019-01-17 10:00:43,931 - Client_Library_OAUTH - ERROR - Exception occured while fetching oauthtoken from db; Exception Message::'NoneType' object has no attribute 'accessToken'

It seems to me that the sdk is looking for the tokens in the database and not the files as specified in the config dictionary.

Any Help would be appreciated. 

Thanks

James