Skip to main content

Socket.IO server

Project description

https://travis-ci.org/miguelgrinberg/python-socketio.svg?branch=master

Python implementation of the Socket.IO realtime server.

Features

  • Fully compatible with the Javascript, Swift, C++ and Java official Socket.IO clients, plus any third party clients that comply with the Socket.IO specification.

  • Compatible with Python 2.7 and Python 3.3+.

  • Supports large number of clients even on modest hardware when used with an asynchronous server based on eventlet or gevent. For development and testing, any WSGI complaint multi-threaded server can be used.

  • Includes a WSGI middleware that integrates Socket.IO traffic with standard WSGI applications.

  • Broadcasting of messages to all connected clients, or to subsets of them assigned to “rooms”.

  • Optional support for multiple servers, connected through a messaging queue such as Redis or RabbitMQ.

  • Send messages to clients from external processes, such as Celery workers or auxiliary scripts.

  • Event-based architecture implemented with decorators that hides the details of the protocol.

  • Support for HTTP long-polling and WebSocket transports.

  • Support for XHR2 and XHR browsers.

  • Support for text and binary messages.

  • Support for gzip and deflate HTTP compression.

  • Configurable CORS responses, to avoid cross-origin problems with browsers.

Example

The following application uses Flask to serve the HTML/Javascript to the client:

import socketio
import eventlet
from flask import Flask, render_template

sio = socketio.Server()
app = Flask(__name__)

@app.route('/')
def index():
    """Serve the client-side application."""
    return render_template('index.html')

@sio.on('connect', namespace='/chat')
def connect(sid, environ):
    print("connect ", sid)

@sio.on('chat message', namespace='/chat')
def message(sid, data):
    print("message ", data)
    sio.emit(sid, 'reply')

@sio.on('disconnect', namespace='/chat')
def disconnect(sid):
    print('disconnect ', sid)

if __name__ == '__main__':
    # wrap Flask application with engineio's middleware
    app = socketio.Middleware(sio, app)

    # deploy as an eventlet WSGI server
    eventlet.wsgi.server(eventlet.listen(('', 8000)), app)

Resources

Project details


Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

python-socketio-0.9.2.tar.gz (13.5 kB view details)

Uploaded Source

File details

Details for the file python-socketio-0.9.2.tar.gz.

File metadata

File hashes

Hashes for python-socketio-0.9.2.tar.gz
Algorithm Hash digest
SHA256 76a44e2fbefeb86baa8160238ed3e1cfa90b3c44da87418bd52622c11be862da
MD5 46366f9f4f44a4da2d0a20682de1e5ab
BLAKE2b-256 711eac484ebee98ec1d7b00ecbfc49931e0b71d51d4e672bcf561ad625628ace

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page