Clojurians Log v2

I would have a handler function that closes over the stateful things, and call the multimethod from there, passing the stateful objects as required.

Does that make sense? On my phone right now, can't really come up with code to illustrate.

Makes sense! Function calling a multimethod is what I missed. Will try this out soon. Many thanks!

So I tried this out and ended up with the following (which works):

(defmulti handle-job!
 (fn [job-type _payload _system] job-type))

(defmethod handle-job! ::store-race
  [job-type {:keys [race-id]} system]
  (let [positions (d/get-race-positions (:db system) race-id)
        in (serialize-positions positions)]
    (store-in-file in "positions.json.gz")))

(defn job-handler [db]
  (fn [job-type payload]
    (handle-job! job-type payload {:db db})))

(defn new-worker [db]
  (worker/create-queue-worker db (job-handler db)))

Yeah, you're right, that statement didn't really make sense. 😅 I think what you have done here is fine. In impls where you don't need the system map you just ignore it.

thank you!