autobahn.twisted.websocket opening handshake error 400 - python-3.x

Question

Problem: when Bitfinex websocket API connection established application gets errors:
2018-02-07T18:51:52+0200 connecting once using transport type "websocket" over endpoint "tcp"
2018-02-07T18:51:52+0200 Starting factory <autobahn.twisted.websocket.WampWebSocketClientFactory object at 0x106708550>
2018-02-07T18:51:52+0200 failing WebSocket opening handshake ('WebSocket connection upgrade failed (400 - BadRequest)')
2018-02-07T18:51:52+0200 dropping connection to peer tcp4:104.16.173.181:443 with abort=True: WebSocket connection upgrade failed (400 - BadRequest)
2018-02-07T18:51:52+0200 component failed: ConnectionAborted: Connection was aborted locally, using.
2018-02-07T18:51:52+0200 Connection failed: ConnectionAborted: Connection was aborted locally, using.
2018-02-07T18:51:52+0200 Stopping factory <autobahn.twisted.websocket.WampWebSocketClientFactory object at 0x106708550>
Code below:
from autobahn.twisted.component import Component, run
import json
cmp_Bitfinex = Component(
transports=[
{
u'type': u'websocket',
u'url': u'wss://api.bitfinex.com/ws',
u'endpoint': {
u'type': u'tcp',
u'host': 'api.bitfinex.com',
u'port': 443,
},
u'options': {
u"open_handshake_timeout": 100,
}
}
],
realm=u"realm1",
)
#cmp_Bitfinex.on_join
def joined(self):
def onTicker(*args):
print("Ticker event received:", args)
try:
yield from self.subscribe(onTicker, 'ticker', options=json.dumps({
"event": "subscribe",
"channel": "ticker",
"pair": "BTCUSD",
"prec": "P0",
"freq": "F0"
}))
except Exception as e:
print("Could not subscribe to topic:", e)
#cmp_Bitfinex.on_connect
def connected(session, details):
print('Connected: {} \r\n {}'.format(session, details))
def main():
run([cmp_Bitfinex])
if __name__ == "__main__":
main()
I understand, that problem can be in data that application sends. But, I can't understand what exactly wrong in my code.
App uses python 3.6, latest autobahn and latest Twisted

Answer 1

AFAICT autobahn components are for programming with WAMP.
I think you should be using their websocket programming. Check this example