SockJS server based on Asyncio (PEP 3156)

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
• xhr-streaming
• xhr-polling
• iframe-xhr-polling
• iframe-eventsource (EventSource used from an iframe via postMessage)
• iframe-htmlfile (HtmlFile used from an iframe via postMessage.
• jsonp-polling

Requirements

• Python 3.10.0
• gunicorn 19.2.0
• aiohttp https://github.com/aio-libs/aiohttp

Examples

You can find several examples in the sockjs repository at github.

https://github.com/aio-libs/sockjs/tree/master/examples

License

sockjs is offered under the Apache 2 license.