(ns my-proj.image-site
  (:require [clj-http.client :as client])
  (:require [clojure.java.io :as io]))

(defn download-image [url file ]
  (with-open [w (io/output-stream file)]
    (.write w (:body ((client/get url {:as :byte-array}))))))

my-proj.image-site=> (download-image "https://www.google.com/images/srpr/logo4w.png" "foo.png")
ArityException Wrong number of args (0) passed to: PersistentArrayMap  clojure.lang.AFn.throwArity (AFn.java:437)