_stream: the name of stream where the data is coming from
_namespace: namespace if available from the stream
_airbyte_ab_id: a uuid string assigned by Airbyte to each event that is processed.
_airbyte_emitted_at: a long timestamp(ms) representing when the event was pulled from the data source.
_airbyte_data: a json string representing source data.
Pub/Sub Editorrole in your GCP project
Pub/Sub Editorrole, which grants permissions to publish messages into PubSub topics. We highly recommend that this Service Account is exclusive to Airbyte for ease of permissioning and auditing. However, you can use a pre-existing Service Account if you already have one with the correct permissions.
Pub/Sub Editorrole. To do this, follow the instructions for Granting Access in the Google documentation. The email address of the member you are adding is the same as the Service Account ID you just created.
Pub/Sub Editorproject-level permission.