def google_oauth2_callback():
r = request.json
credentials = auth.google_flow(r['redirectUri']).step2_exchange(r['code'])
http = credentials.authorize(httplib2.Http())
service = build('oauth2', 'v2', http=http)
data = service.userinfo().get().execute()
user = GoogleCredential.query(
GoogleCredential.google_id == data['id']).get()
if user:
token = auth.create_token(user.key)
return jsonify(token=token)
user = GoogleCredential(credential=credentials.to_json(),
google_id=data['id'],
first_name=data['given_name'],
picture=data['picture'],
last_name=data['family_name'],
email=data['email']).put()
token = auth.create_token(user)
return jsonify(token=token, first_time=True)
