pesterhazy

Chaining promises

Chaining promises in ClojureScript is best done using the thread-first macro, ->. Here's an example of using the fetch API:

(-> (js/fetch "/data")
    (.then (fn [r]
             (when-not (.-ok r)
               (throw (js/Error. "Could not fetch /data")))
             (.json r)))

edwthomas

(:require [re-frame.core :as re-frame]
          [reagent.core :as reagent]
          [cljsjs.chartjs])
          
(defn show-revenue-chart
  []
  (let [context (.getContext (.getElementById js/document "rev-chartjs") "2d")
        chart-data {:type "bar"
                    :data {:labels ["2012" "2013" "2014" "2015" "2016"]
                           :datasets [{:data [5 10 15 20 25]

Stanback

#
# CORS header support
#
# One way to use this is by placing it into a file called "cors_support"
# under your Nginx configuration directory and placing the following
# statement inside your **location** block(s):
#
#   include cors_support;
#
# As of Nginx 1.7.5, add_header supports an "always" parameter which