pipeline.cljs

;; Pipelines are a new way to write controller action handlers for Keechma.
;; They are a part of the (soon-to-be-released) Keechma Toolbox - https://github.com/keechma/keechma-toolbox
;;
;; In this case we implemented a live Movie Search (it's hitting http://www.omdbapi.com/) where the pipeline is called on every
;; keypress, and makes request after a 500ms timeout. This pipeline is exclusive so if a pipeline is running when the next
;; keypress happens, it will be cancelled (along with the AJAX request) and another pipeline will be started.
;;
;; https://github.com/keechma/keechma-toolbox/tree/master/src/cljs/keechma/toolbox/pipeline

(def search-controller
  (pp-controller/constructor
   (fn [] true)
   {:search (pp/exclusive
             (pipeline! [value app-db]
               (when-not (empty? value)
                 (pipeline! [value app-db]
                   (delay-pipeline 500)
                   (movie-search value)
                   (println "SEARCH RESULTS:" value)))))}))