def load_user_account_credentials(try_credentials,
project_id=None,
credentials_path=None):
"""
Loads user account credentials from a local file.
.. versionadded 0.2.0
Parameters
----------
None
Returns
-------
- GoogleCredentials,
If the credentials can loaded. The retrieved credentials should
also have access to the project (project_id) on BigQuery.
- OR None,
If credentials can not be loaded from a file. Or, the retrieved
credentials do not have access to the project (project_id)
on BigQuery.
"""
import google.auth.transport.requests
from google.oauth2.credentials import Credentials
try:
with open(credentials_path) as credentials_file:
credentials_json = json.load(credentials_file)
except (IOError, ValueError):
return None
credentials = Credentials(
token=credentials_json.get("access_token"),
refresh_token=credentials_json.get("refresh_token"),
id_token=credentials_json.get("id_token"),
token_uri=credentials_json.get("token_uri"),
client_id=credentials_json.get("client_id"),
client_secret=credentials_json.get("client_secret"),
scopes=credentials_json.get("scopes"),
)
# Refresh the token before trying to use it.
request = google.auth.transport.requests.Request()
credentials.refresh(request)
return try_credentials(project_id, credentials)
def refresh_cred(cred: Credentials):
if cred.valid is False:
cred.refresh(Request())
print(f"Refreshed credentials for {cred.signer_email}")
