lrvick/flask_geventwebsocket_example.py

## flask_geventwebsocket_example.py
from geventwebsocket.handler import WebSocketHandler
from gevent.pywsgi import WSGIServer
from flask import Flask, request, render_template

app = Flask(__name__)

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/api')
def api():
    if request.environ.get('wsgi.websocket'):
        ws = request.environ['wsgi.websocket']
        while True:
            message = ws.wait()
            ws.send(message)
    return

if __name__ == '__main__':
    http_server = WSGIServer(('',5000), app, handler_class=WebSocketHandler)
    http_server.serve_forever()

## index.html
<!DOCTYPE HTML>
<html>
<head>
    <title>Flask/Gevent WebSocket Test</title>
    <script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
    <script type="text/javascript" charset="utf-8">
        $(document).ready(function(){
            $('form').submit(function(event){
                ws.send($('#data').val())
                return false;
            });
            if ("WebSocket" in window) {
                ws = new WebSocket("ws://" + document.domain + ":5000/api");
                ws.onmessage = function (msg) {
                    $("#log").append("<p>"+msg.data+"</p>")
                };
            } else {
                alert("WebSocket not supported");
            }
        });
    </script>
</head>
<body>
    <h1>Send:</h1>
    <form method='POST' action='#'>
        <textarea name='data' id="data"></textarea>
        <div><input type='submit'></div>
    </form>
    <h1>Receive:</h1>
    <div id="log"></div>
</body>
</html>
	from geventwebsocket.handler import WebSocketHandler
	from gevent.pywsgi import WSGIServer
	from flask import Flask, request, render_template

	app = Flask(__name__)

	@app.route('/')
	def index():
	return render_template('index.html')

	@app.route('/api')
	def api():
	if request.environ.get('wsgi.websocket'):
	ws = request.environ['wsgi.websocket']
	while True:
	message = ws.wait()
	ws.send(message)
	return

	if __name__ == '__main__':
	http_server = WSGIServer(('',5000), app, handler_class=WebSocketHandler)
	http_server.serve_forever()
	<!DOCTYPE HTML>
	<html>
	<head>
	<title>Flask/Gevent WebSocket Test</title>
	<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
	<script type="text/javascript" charset="utf-8">
	$(document).ready(function(){
	$('form').submit(function(event){
	ws.send($('#data').val())
	return false;
	});
	if ("WebSocket" in window) {
	ws = new WebSocket("ws://" + document.domain + ":5000/api");
	ws.onmessage = function (msg) {
	$("#log").append("<p>"+msg.data+"</p>")
	};
	} else {
	alert("WebSocket not supported");
	}
	});
	</script>
	</head>
	<body>
	<h1>Send:</h1>
	<form method='POST' action='#'>
	<textarea name='data' id="data"></textarea>
	<div><input type='submit'></div>
	</form>
	<h1>Receive:</h1>
	<div id="log"></div>
	</body>
	</html>