Clojurians Log v2

A user will generated events which serves two purposes:1. update the db. 2. tell downstream event handler.

I wonder if this thing is possible with Datomic alone instead of Datomic + Kafka.

You can process the transaction log and use it to trigger downstream events.

@i

Yup. Think about that too. Is it a production-used approach? Are you aware of any working example?

(time
  (do (mapv (fn [x] (update x :field :db/ident))
        corpus)
      nil))
"Elapsed time: 142.214586 msecs"
=> nil

Yeah, they use this to do decanting.