Hi @brian_ls
I have included the available documentation below; though I must admit, we could likely use a tutorial or two of Kafka in action.
https://fusionauth.io/docs/v1/tech/integrations/kafka/#overview
https://fusionauth.io/docs/v1/tech/messengers/kafka-messenger/
https://fusionauth.io/docs/v1/tech/apis/messengers/kafka/
As I am not a Kafka expert myself, but I will log an issue on our issues board regarding the need for an example tutorial. Based on what I have read, you would configure a messenger and use Kafka to communicate using FusionAuth. Or use Kafka as an integration point, and yes, webhooks would be involved.
I will discuss this with my colleagues and let you know if I discover anything further.
Thanks,
Josh