An example for redis publish subscribe feature with clojure...?

Questions & Help How to?
7

I’ve done it like this:

(defmethod ig/init-key :app/redis [_ {:keys [redis-host
                                                 redis-port] :as opts}]
  (timbre/warn "Connecting to the Redis server" opts)
  (let [conn {:pool {}
              :spec {:host redis-host
                     :port redis-port}}
        listener
        (car/with-new-pubsub-listener (:spec conn)
        {"foobar" (fn f1 [msg] (println "Channel match: " msg))
         "foo*"   (fn f2 [msg] (println "Pattern match: " msg))}
       (car/subscribe  "foobar" "foobaz")]
   
    (try
      (timbre/warn "Connected to the Redis - " (redis/wcar conn (redis/ping)))
      ;; Return the listener
      listener
      ;; When redis is not available then retrun nil
      (catch Exception _
        (timbre/warn "Unbale to connect with the Redis server ")
        nil))))

but now how to use this listener outside this file?