Precondition check failed error using Gmail (GSuite) account #984
Description
python version: 3.7
pip: 9.0.1
os type and version: Linux 2.6.32-954.3.5.lve1.4.77.el6
google-api-python-client: 1.10.0
I'm continuing to get an invalid request error trying to submit an email using this library.
I have already set up a: OAuth 2.0 Client ID, Service Account, and Domain-wide Delegation. Although no emails are being sent, I can see that 400 errors are being produced in the "API's and services" page for the service account.
I've provided the code and traceback below.
import base64
from apiclient import errors
from google.oauth2.service_account import Credentials
from googleapiclient.discovery import build
from httplib2 import Http
from email.mime.text import MIMEText
def service_account_login():
credentials = Credentials.from_service_account_file(
'service-key.json',
scopes=['https://www.googleapis.com/auth/gmail.send']
)
delegated_credentials = credentials.with_subject('me')
gmail = build('gmail', 'v1', credentials=delegated_credentials)
return gmail
def create(from_, subject, text):
"""Create a message for an email
Parameters
----------
from_ : [type]
Email address of the sender
subject : [type]
The subject of the email message
text : [type]
The text of the email message
Returns
-------
[type]
An object containing a base64url encoded email object
"""
message = MIMEText(text)
message['from'] = from_
message['to'] = "someone@<gsuite domain>".com
message['subject'] = subject
return {
'raw': base64.urlsafe_b64encode(message.as_string().encode()).decode()
}
def send(from_, subject, text):
"""[summary]
Parameters
----------
service : [type]
Authorized Gmail API service instance
message : [type]
Message to be sent
Returns
-------
[type]
Sent Message
"""
try:
message_ = create(from_=from_, subject=subject, text=text)
service = service_account_login()
message = (
service.users()
.messages()
.send(userId='', body=message_)
.execute()
)
print(f"Message Id: {message['id']}")
return message
except errors.HttpError as error:
print(f'An error occurred: {error}')Traceback (most recent call last):
File "/home/semeon/Mail.py", line 77, in send
.send(userId='', body=message_)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/googleapiclient/_helpers.py", line 134, in positional_wrapper
return wrapped(*args, **kwargs)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/googleapiclient/http.py", line 901, in execute
headers=self.headers,
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/googleapiclient/http.py", line 177, in _retry_request
resp, content = http.request(uri, method, *args, **kwargs)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/google_auth_httplib2.py", line 190, in request
self._request, method, uri, request_headers)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/google/auth/credentials.py", line 133, in before_request
self.refresh(request)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/google/oauth2/service_account.py", line 359, in refresh
access_token, expiry, _ = _client.jwt_grant(request, self._token_uri, assertion)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/google/oauth2/_client.py", line 153, in jwt_grant
response_data = _token_endpoint_request(request, token_uri, body)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/google/oauth2/_client.py", line 124, in _token_endpoint_request
_handle_error_response(response_body)
File "/home/semeon/virtualenv/app/3.7/lib/python3.7/site-packages/google/oauth2/_client.py", line 60, in _handle_error_response
raise exceptions.RefreshError(error_details, response_body)
google.auth.exceptions.RefreshError: ('invalid_request: Invalid impersonation "sub" field.', '{\n "error": "invalid_request",\n "error_description": "Invalid impersonation \\u0026quot;sub\\u0026quot; field."\n}')