Spawning a broadcast about flask-socketio

[miguelgrinberg]

You can do it with a little bit of effort. Your thread needs to have access to the SocketIOServer object, which holds the list of connections. You can get it if you subclass the SocketIO extension and override the run() method. The server object has a server.sockets attribute, see how it is used in my emit() implementation when broadcast=True.

[matdrapeau]

Think I found a solution, let me know what you think:

@socketio.on('connect', namespace='/test')
def connect():
    @copy_current_request_context
    def constant_emit():
        while True:
            try:
                emit('message', {'data': 'test'}, namespace='/test', broadcast=True)
            except:
                pass
            sleep(3)
    if broadcast_started is False:
        gevent.spawn(constant_emit)
        broadcast_started = True

[miguelgrinberg]

Looks good, you found a simpler way than what I was thinking.

[miguelgrinberg]

You can now use the socketio.emit() and socketio.send() functions added in version 0.3 for this.