https://github.com/fukamachi/fast-websocket.git
    git clone 'https://github.com/fukamachi/fast-websocket.git'
      
      
(ql:quickload :fast-websocket)
    
  
  Optimized low-level WebSocket protocol parser/composer.
This software is still BETA quality. The APIs will be likely to change.
(use-package :fast-websocket)
(let* ((ws (make-ws))
       (body (make-string-output-stream))
       (parser (make-parser ws
                            :require-masking t
                            :message-callback
                            (lambda (message)
                              (princ message body))
                            :close-callback
                            (lambda (payload &key code)
                              (format t "Client closed a connection: ~A (Code: ~D)~%" payload code)))))
  (funcall parser (make-array 11 :element-type '(unsigned-byte 8)
                              :initial-contents (list 129 133 225 106 10 29 169 15 102 113 142)))
  (princ (opcode-name (ws-opcode ws)))
  ;-> :TEXT
  (princ (get-output-stream-string body))
  ;-> Hello
  t)
(compose-frame "bye" :type :close :code (error-code :protocol-error))
;=> #(136 5 3 234 98 121 101)cd ~/common-lisp
git clone https://github.com/fukamachi/fast-websocket(ql:quickload :fast-websocket)Copyright (c) 2015 Eitaro Fukamachi (e.arrows@gmail.com)
Licensed under the BSD 2-Clause License.