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71 lines
2.0 KiB
Markdown
71 lines
2.0 KiB
Markdown
# Introducing Flask-Sockets
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*January 2013*
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The state of [WebSockets](http://websocket.org) in Python is unfortunate — there's no obvious way to do it. Twisted \+ Autobhan? Node.js \+ HAProxy? Diesel.io? Nothing feels right. Let's create a WebSocket echo endpoint.
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```python
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from flask import Flask
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from flask_sockets import Sockets
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app = Flask(__name__)
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sockets = Sockets(app)
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@sockets.route('/echo')
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def echo_socket(ws):
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while True:
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message = ws.receive()
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ws.send(message)
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@app.route('/')
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def hello():
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return 'Hello World!'
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```
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Serving WebSockets in Python was really difficult. Now it's not.
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> I'm going to use the shit out of this. — Randall Degges
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>
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> This looks absolutely incredible. — Glenn Siegman
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>
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> How do you install this in node? — Nick Hudkins
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>
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> You are a golden god, sir. — Jeremy Bowers
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>
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> \*foams at the mouth\* — Kyle Conroy
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## Installation \& Deployment
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[Flask\-Sockets](https://github.com/kennethreitz/flask-sockets) is an easy to install Flask extension:
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```bash
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$ pip install Flask-Sockets
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```
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Production services are provided by gevent and gevent\-websocket. Anything that inserts `wsgi.websocket` into the WSGI environ is supported, but gevent\-websocket is recommended.
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A custom Gunicorn worker is included to make deployment as friendly as possible:
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```bash
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$ gunicorn -k flask_sockets.worker hello:app
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```
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Everything else is taken care of for you.
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## Moving Forward
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If you'd like to help bring this library to the next level, [fork it](https://github.com/kennethreitz/flask-sockets) and send a pull request!
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### Related Links
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- [Flask-Sockets on PyPi](https://pypi.python.org/pypi/Flask-Sockets)
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- [Flask-Sockets on GitHub](https://github.com/kennethreitz/flask-sockets)
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- [Gevent-WebSocket](http://www.gelens.org/code/gevent-websocket/)
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- [RFC 6455](http://tools.ietf.org/html/rfc6455)
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