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A simple Flask sockets example
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| # Copy of http://stackoverflow.com/a/20104705 | |
| from flask import Flask, render_template | |
| from flask_sockets import Sockets | |
| app = Flask(__name__) | |
| app.debug = True | |
| sockets = Sockets(app) | |
| @sockets.route('/echo') | |
| def echo_socket(ws): | |
| while True: | |
| message = ws.receive() | |
| ws.send(message[::-1]) | |
| @app.route('/') | |
| def hello(): | |
| return 'Hello World!' | |
| @app.route('/echo_test', methods=['GET']) | |
| def echo_test(): | |
| return render_template('echo_test.html') | |
| if __name__ == '__main__': | |
| app.run() |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript"> | |
| var ws = new WebSocket("ws://localhost:8000/echo"); | |
| ws.onopen = function() { | |
| ws.send("socket open"); | |
| }; | |
| ws.onclose = function(evt) { | |
| alert("socket closed"); | |
| }; | |
| ws.onmessage = function(evt) { | |
| alert(evt.data); | |
| }; | |
| </script> | |
| </head> | |
| </html> |
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The flask_sockets project is now archived and unsupported. We @AdaSupport had issues running it with gunicorn. This snippet solved our problem: