(require 'json)
(require 'url)
(with-temp-buffer
(url-retrieve "https://httpbin.org/get"
 (lambda (events)
   (goto-char url-http-end-of-headers)
   (let ((json-object-type 'plist) (json-key-type 'symbol) (json-array-type 'vector)))
   (json-read))))


(with-temp-buffer
  (url-retrieve-synchronously "https://httpbin.org/get")
  (goto-char url-http-end-of-headers)
  (json-read))

(with-temp-buffer (url-retrieve-synchronously "https://httpbin.org/get")
  (setf (point) url-http-end-of-headers)
  (prog1 (json-read)
    (kill-buffer)))

(url-retrieve "https://www.duckduckgo.com" (lambda (status) (print status) (switch-to-buffer (current-buffer))))