SockJS server implementation for aiohttp.
Project description
sockjs is a SockJS integration for aiohttp. SockJS interface is implemented as a aiohttp route. Its possible to create any number of different sockjs routes, ie /sockjs/* or /mycustom-sockjs/*. You can provide different session implementation and management for each sockjs route.
Simple aiohttp web server is required:
[server:main] use = egg:gunicorn#main host = 0.0.0.0 port = 8080 worker = aiohttp.worker.GunicornWebWorker
Example of sockjs route:
def main(global_settings, **settings):
app = web.Application()
app.router.add_route('GET', '/', index)
sockjs.add_endpoint(app, prefix='/sockjs', handler=chatSession)
web.run_app(app)
Client side code:
<script src="https://cdn.jsdelivr.net/npm/sockjs-client@1/dist/sockjs.min.js"></script>
<script>
var sock = new SockJS('http://localhost:8080/sockjs');
sock.onopen = function() {
console.log('open');
sock.send('test');
};
sock.onmessage = function(e) {
console.log('message', e.data);
sock.close();
};
sock.onclose = function() {
console.log('close');
};
</script>
Supported transports
websocket hybi-10
iframe-eventsource (EventSource used from an iframe via postMessage)
iframe-htmlfile (HtmlFile used from an iframe via postMessage.
Requirements
Python 3.10.0
gunicorn 19.2.0
Examples
You can find several examples in the sockjs repository at github.
License
sockjs is offered under the Apache 2 license.
CHANGES
0.13.0 (2024-06-13)
Added argument cors_config into function add_endpoint() to support of CORS settings from aiohttp_cors.
Added arguments heartbeat_delay and disconnect_delay into function add_endpoint().
Function add_endpoint() now returns all registered routes.
Replaced returning instances of error HTTP responses on raising its as exceptions.
Changed name of some routes.
Heartbeat task moved from SessionManager into Session.
Methods _acquire and _release of Sessions renamed into acquire and release.
Added processing of ConnectionError in StreamingTransport.
Changed arguments of handler function. Now handler function must be defined like async def handler(manager, session, msg):
Constants:
FRAME_OPEN
FRAME_CLOSE
FRAME_MESSAGE
FRAME_MESSAGE_BLOB
FRAME_HEARTBEAT
replaced by Frame enums with corresponding values.
Constants:
MSG_OPEN
MSG_MESSAGE
MSG_CLOSE
MSG_CLOSED
replaced by MsgType enums with corresponding values.
Constants:
STATE_NEW
STATE_OPEN
STATE_CLOSING
STATE_CLOSED
replaced by SessionState enums with corresponding values.
0.12.0 (2022-02-08)
Breaking change: Removed argument timeout from Session.__init__() and SessionManager.__init__().
Breaking change: Argument heartbeat of SessionManager.__init__() renamed into heartbeat_delay.
Breaking change: Session.registry renamed into Session.app.
Breaking change: Deleted method SessionManager.route_url().
Breaking change: Dropped support of Python < 3.7
Fixed processing of heartbeats and a session expiration.
Fixed ping-pong based heartbeats for web-socket connections.
Added arguments heartbeat_delay and disconnect_delay into Session.__init__().
Added argument disconnect_delay into SessionManager.__init__().
0.11.0 (2020-10-22)
Breaking change: Added into the WebSocketTransport the ability to process multi messages from client (#383).
Added into WebSocketTransport ignoring of empty frames received from client. (#383).
Added tick after dequeue so heartbeat keeps session live (#265).
Fix race condition during iteration over sessions (#217).
Support Python 3.8.
Fixed examples of using of SockJS server (#264).
0.10.0 (2019-10-20)
Sync with aiohttp 3.6 (#298)
0.9.1 (2018-12-04)
Minor code styling cleanups
0.9.0 (2018-10-11)
Support Python 3.7. The minimal available Python version is 3.5.3 (#240)
0.8.0 (2018-06-15)
Fix heartbeat (#214)
0.7.1 (2018-03-05)
Fix compatibility with aiohttp 3.0+ again.
0.7.0 (2018-02-25)
Fixed compatibility with aiohttp 3.0+ (#169)
0.6 (2017-04-13)
Fixed support for aiohttp 2.0+.
0.5 (2016-09-26)
Mark SockJSRoute.handler and SockJSRoute.websocket as coroutines. #25
Remove a check for “ORIGIN” header #12
Process FRAME_MESSAGE_BLOB message type #12
0.4 (2016-02-04)
Fixed lost event-loop argument in sockjs.transports.websocket.WebSocketTransport
Fixed lost event-loop argument in sockjs.transports.rawwebsocket.RawWebSocketTransport
Fixed RawRequestMessage. Add raw_header argument (aiohttp 0.21+)
Fixed many warnings
Fixed sockjs.route add_endpoint without name bug
0.3 (2015-08-07)
Fixed calls of SessionManager.aquire() - was removed the unnecessary second argument.
Fixed the incorrect argument in one call of cors_headers().
Fixed many errors. The code is not perfect, but at least it was working as it should.
0.2 (2015-07-07)
Fixed packaging
0.1.0 (2015-06-21)
Initial release
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