Feature Request: Support Graphql subscription

[miketwo]

I'm not exactly sure how to modify the code to achieve this, but I think it would involve two things:

• being able to pass the subprotocols arg to websockets.connect()
• being able to send a subscription query on connect

Example working code:

async def capture_data():
  uri = "ws://localhost:8000/graphql"
  start = {
    "type": "start",
    "payload": {"query": "subscription { whatever }"}
  }
  async with websockets.connect(uri, subprotocols=["graphql-ws"]) as websocket:
    await websocket.send(json.dumps(start))
    while True:
      data = await websocket.recv()
      handle_msg(json.loads(data))

[kirankumbhar]

Hey @miketwo
Can you explain the problem you are trying to solve in the detail? More context would be helpful to modify the WebSocket connection to allow some custom arguments.