Between versions 1.2.0 and 1.6.5, there is a non-backward compatible change in the configuration of BigQuery Kafka connector on Aiven.
In version 1.2.0, credentials
field is used to specify the Google Cloud credentials in JSON format:
...
"credentials": "{...}",
...
In version 1.6.5 or later, please use keyfile
field for this and also set keySource=JSON
(as described here):
...
"keyfile": "{...}",
"keySource": "JSON",
...