Google Calendar Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup

So I am trying to work with some code that takes a ical file and syncs it to my google calendar. The code I am using as a base can be found here.

However, I seem to be get errors in the code that would make me believe that I am having trouble authenticating my credentials.

Below is the code I use for authenticating:

def get_credentials():
store = Storage(CREDENTIAL_PATH)
credentials = store.get()
if not credentials or credentials.invalid:
flow = client.flow_from_clientsecrets(CLIENT_SECRET_FILE, SCOPES)
flow.user_agent = APPLICATION_NAME
credentials = tools.run_flow(flow, store, None)
return credentials


credentials = get_credentials()
http = credentials.authorize(httplib2.Http())
service = discovery.build('calendar', 'v3', http=http)

service.events().update(calendarId=CALENDAR_ID, eventId=gcal_event['id'],body=gcal_event).execute()


The error I get is:

{
"error": {
"errors": [
{
"domain": "usageLimits",
"reason": "dailyLimitExceededUnreg",
"message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup.",
"extendedHelp": "https://code.google.com/apis/console"
}
],
"code": 403,
"message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup."
}
}


Is there a reason my credentials are not authenticating? I used a very similar code structure with the google sheets api and it worked great.

I should also note that in the previous parts of the script the events in my calendar are actually grabbed from the google calendar api.

Update:

Looks like it had nothing to do with authentication. Instead the calendar event id was not in the correct format. Anyone know a way to convert a string of text into a format of base32hex encoding?

2 Answers
2

You can base32-encode the event id using the base64 package.

>>> import base64
>>> id = 'My-Event-Id'
# id must be bytes if you are using python3, so call encode on it.
>>> encoded = base64.b32encode(id.encode())
>>> encoded
b'JV4S2RLWMVXHILKJMQ======'


Event ids can be decoded like this:

>>> decoded = base64.b32decode(encoded).decode()
>>> decoded
'My-Event-Id'


You need to sign up for paid access or limit the number of requests you make in a single day. From the Google API documentation for the Calendar API

The Google Calendar API has a courtesy limit of 1,000,000 queries per day.

Borrowed from : https://developers.google.com/calendar/pricing

For more info about the specific errors and other possible solutions see the rest of Google’s documentation https://developers.google.com/calendar/v3/errors#403_daily_limit_exceeded

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