问题
I'm in the same situation as this guy (only that my problem is with python): I'm trying to retrieve data using a service account (using this example and after reading this blog entry since my application is a google app) but I get hit with a login required error and I cannot understand why.
Let me represent it with a whole example:
In [1]: import httplib2
In [2]: from apiclient.discovery import build
In [3]: from oauth2client.client import SignedJwtAssertionCredentials
In [4]: f = open('abd45679ffg32343-privatekey.p12', 'rb')
In [5]: key = f.read()
In [6]: f.close()
In [7]: credentials = SignedJwtAssertionCredentials(
'2127313127654990@developer.gserviceaccount.com', key,
scope=['https://www.googleapis.com/auth/calendar',
'https://www.googleapis.com/auth/calendar.readonly'])
In [8]: http = httplib2.Http()
In [9]: http = credentials.authorize(http)
In [10]: service = build(serviceName='calendar', version='v3', http=http,
....: developerKey='XcddfRgtyt676grggtT')
2012-05-14 18:24:35,170 INFO [root][MainThread] URL being requested: https://www.googleapis.com/discovery/v1/apis/calendar/v3/rest
2012-05-14 18:24:35,170 INFO [oauth2client.client][MainThread] Attempting refresh to obtain initial access_token
2012-05-14 18:24:35,179 INFO [oauth2client.client][MainThread] Refresing access_token
In [11]: service.calendarList().list().execute()
2012-05-14 18:25:00,418 INFO [root][MainThread] URL being requested https://www.googleapis.com/calendar/v3/users/me/calendarList?alt=json&key=XcddfRgtyt676grggtT
---------------------------------------------------------------------------
HttpError Traceback (most recent call last)
/home/mariano/Code/Kalendar/rest/kalendar/<ipython-input-12-0cb769615d74> in <module>()
----> 1 service.calendarList().list().execute()
/home/mariano/Code/Kalendar/rest/env/local/lib/python2.7/site-packages/google_api_python_client-1.0beta8-py2.7.egg/apiclient/http.pyc in execute(self, http)
387
388 if resp.status >= 300:
--> 389 raise HttpError(resp, content, self.uri)
390 return self.postproc(resp, content)
391
HttpError: <HttpError 403 when requesting https://www.googleapis.com/calendar/v3/users/me/calendarList?alt=json&key=XcddfRgtyt676grggtT returned "The user must be signed up for Google Calendar.">
Any pointers about why is this happening and how to solve it would be greatly appreciate.
回答1:
I don't think service accounts are available for Calendar API. The service account has no calendar of its own.
回答2:
Service Accounts are available and work with Calendar API for me.
You need to change your following statement:
credentials = SignedJwtAssertionCredentials('2127313127654990@developer.gserviceaccount.com', key, scope=['https://www.googleapis.com/auth/calendar', 'https://www.googleapis.com/auth/calendar.readonly'])
to
credentials = SignedJwtAssertionCredentials('2127313127654990@developer.gserviceaccount.com', key, scope=['https://www.googleapis.com/auth/calendar', 'https://www.googleapis.com/auth/calendar.readonly'], prn='requestor@domain.com')
回答3:
The service accounts do work with the Calendar API. You have to also grant access on your domain management as well.
Do as user1260486 and btspierre said, and add the "prn=requestor@domain.com" to the constructor for SignedJWTAssertionCredentials.
Then go to your domain management and add your client_id access to the API.
Here's a walkthrough about it.
For the scope specify "https://www.googleapis.com/auth/calendar, https://www.googleapis.com/auth/calendar.readonly"
来源：https://stackoverflow.com/questions/10591849/unauthorized-interaction-with-google-calendar-api-v3