How to create a call and add stream audio programmatically?

[prateeksachan]

Hi,

I'm looking for an example to:

1. Create a call
2. Stream audio

From the docs, it seems plivo takes in an answer_url to create a call and for creating a stream I need call_uuid. But since I'm already creating a call, I'm not getting any call_uuid. Below is what I've tried as of now:

async def make_call():
    plivo_client = plivo.RestClient('auth_id', 'auth_token')
    response = plivo_client.calls.create(
        from_='from_number',
        to_='to_number',
        answer_url=f"{app_callback_url}/plivo_callback?ws_url={websocket_url}",
        answer_method='POST')


@app.post('/plivo_callback')
async plivo_callback(request: Request, ws_url: str, CallUUID: str):
    websocket_plivo_route = f'{ws_url}/ws/'
    response = plivo_client.calls.start_stream(call_uuid=CallUUID,
                                         service_url=websocket_plivo_route, bidirectional=True)

I have a server running and listening to /ws/ websocket endpoint.

The initial call get created with the response:

{'api_id': '34e56af1-739d-4b54-9861-613a2db7546d',
 'message': 'call queued',
 'request_uuid': '1b08512d-3fff-4b4d-ada2-c956cdaa70b1'}

And I get Exception occurred in plivo_callback: Stream consumed as the exception and the call gets disconnected shortly.