pubsubTopic

The Pub/Sub topic that notifications of changes are published on. Supplied by the client. The notification is a PubsubMessage with the following fields: * PubsubMessage.Data contains the resource name. * PubsubMessage.MessageId is the ID of this notification. It's guaranteed to be unique within the topic. * PubsubMessage.PublishTime is the time when the message was published. Note that notifications are only sent if the topic is non-empty. Topic names must be scoped to a project. The Cloud Healthcare API service account, service-PROJECT_NUMBER@gcp-sa-healthcare.iam.gserviceaccount.com, must have publisher permissions on the given Pub/Sub topic. Not having adequate permissions causes the calls that send notifications to fail. If a notification cannot be published to Pub/Sub, errors are logged to Cloud Logging. For more information, see Viewing error logs in Cloud Logging).