ring-jetty9-adapter

Ring adapter for Jetty 9 with WebSocket support which means you can use WebSocket in your Clojure application without pain.

Usage

Leiningen

[info.sunng/ring-jetty9-adapter "0.5.1"]

Code

(use 'ring.adapter.jetty9)
(run-jetty app {:port 50505}) ;; same as the 'official' adapter of jetty 7

WebSocket

From 0.5.0, you don't need gen-class to use websocket, thanks to NoamB.

(def ws-handler {:create-fn (fn [ring-req])
                 :connect-fn (fn [ring-req ws-conn ring-session])
                 :error-fn (fn [ring-req ring-session e])
                 :close-fn (fn [ring-req ring-session status reason])
                 :text-fn (fn [ring-req ws-session ring-session text-message])
                 :binary-fn (fn [ring-req ws-session ring-session payload offset len])})

There is a new option :websockets available. Accepting a map of context path and listener class:

(use 'ring.adapter.jetty9)
(run-jetty app {:websockets {"/loc" ws-handler}})

In the javascript:

// remember to add the trailing slash.
// Otherwise, jetty will return a 302 on websocket upgrade request,
// which is not supported by most browsers.
var ws = new WebSocket("ws://somehost/loc/");
ws.onopen = ....

License

Copyright © 2013 Sun Ning

Distributed under the Eclipse Public License, the same as Clojure.