Hi everyone,
I'm developing a Flask application and encountering a TypeError when trying to save entities to Google Cloud Datastore. I am on a mac, Montery. I have google-cloud-datastore-2.19.0 and protobuf-4.23.2. I am using python-3.9.12. I got this error,
TypeError: Parameter to MergeFrom() must be instance of same class: expected google.datastore.v1.Key.PathElement got PathElement.
I searched StackOverflow and found 1 person who solved it by downgrading protobuf. It did not work for me. I checked my code and I am calling the functions correctly.
I would appreciate any advice on how to deal with this error.
save_story_to_datastore(story_content)
def save_story_to_datastore(story_content):
"""
Saves a new story to Google Cloud Datastore.
"""
client = get_datastore_client()
key = client.key('Story')
entity = datastore.Entity(key=key)
entity.update({
'story_text': story_content,
'created_at': datetime.datetime.utcnow()
})
client.put(entity)
def get_datastore_client():
"""
Creates and returns a Google Cloud Datastore client configured with a service account.
"""
try:
# Fetch the service account key JSON from Secret Manager
sa_key_json = get_secret('content-genie-network-sa-key')
# Load the JSON string into a dictionary
sa_key = json.loads(sa_key_json)
# Construct the credentials object from the service account key
credentials = service_account.Credentials.from_service_account_info(sa_key)
# Create a Datastore client using the credentials
client = datastore.Client(credentials=credentials)
return client
except json.JSONDecodeError:
raise ValueError("Failed to decode the JSON key for the service account.")
except DefaultCredentialsError as e:
raise RuntimeError(f"Failed to create credentials with the provided key: {e}")
except Exception as e:
raise RuntimeError(f"An error occurred while setting up the Datastore client: {e}")
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