Error in API call to list custom detection rules

Question

Hello,

I am getting below error for API call to list custom detection rules:

Querying URL: https://backstory.googleapis.com/v2/detect/rules?page_size=2000{'error': {'code': 403, 'message': 'The caller does not have permission', 'status': 'PERMISSION_DENIED'}}object of type 'NoneType' has no len()

I validated and the permissions seems good for service account (Chronicle API Admin).

Any guidance, examples, or best practices would be really helpful.
Thanks in advance!

Thanks,

Suraj

James_E · Answer

Hello,I am getting below error for API call to list custom detection rules:Querying URL: https://backstory.googleapis.com/v2/detect/rules?page_size=2000{'error': {'code': 403, 'message': 'The caller does not have permission', 'status': 'PERMISSION_DENIED'}}object of type 'NoneType' has no len()I validated and the permissions seems good for service account (Chronicle API Admin).Any guidance, examples, or best practices would be really helpful.Thanks in advance!Thanks,SurajThe most likely problem is using the Backstory API URL with the Service Account created in your GCP project.Use this URL instead, where ‘parent’ is ‘projects/{project}/locations/{location}/instances/{instance}’. It is outlined in the docs here. Use the same Service Account with Chronicle API Admin.https://chronicle.us.rep.googleapis.com/v1alpha/{parent}/rules

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