(set-env! :dependencies '[[clj-http "2.3.0"]])
(require '[clj-http.client :as http]
'[clojure.java.io :as io])
(io/copy
(:body (http/get "https://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Giant_panda01_960.jpg/320px-Giant_panda01_960.jpg"
{:as :stream}))
(io/file "panda.jpg"))