Forked from lrvick/flask_geventwebsocket_example.py
Created
October 12, 2012 03:48
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Simple Websocket echo client/server with Flask and gevent / gevent-websocket
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| 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() |
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| <!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> |
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