An example of polling using cljs and setInterval

polling.cljs

;; Time between polling requests in milliseconds
(def TIMEOUT 1000)


(defn polling-request
  [handler timeout]
  ;; Will call the handler every timeout interval
  (js/setInterval handler timeout))


(polling-request
  (fn []
    ;; do something ever poll timeout like check a db
    ;; (let [surveys (<! (api/get-all-surveys))]
    ;;   (swap! state* assoc :surveys surveys))
    )
  ;; Time between polling calls
  TIMEOUT)

;; I would imagine you could use the polling-request fn in something like
;; `:component-did-mount` of your surveys component to refresh all the surveys
;; every so often. 

;; You should also keep track of the id of the setInterval call so you can stop it when you leave that page
;; Something like
(swap! state* assoc :polling-id (polling-request handler timeout))
;; This will store the id of the interval in state*
;; then on `:component-will-unmount` you can/should clear that with 
(js/clearInterval (:polling-id @state*))
;;
;; So high level
;; 1. Start a polling function call of whatever (handler) with setInterval
;; 2. Store the id returned from that to kill it later otherwise it will keep polling even when you leave the page
;; 3. Clear the interval when you unmount your page that's polling

thank you!