from server using python, how to check if a text stream, like 'lk.chat', is ready to accept message?

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i want to check if there's recepiant of the stream

If you want to check whether there’s a specific recipient for a text stream in LiveKit using Python, you can take a look at the

destination_identities

property of the

TextStreamInfo

. This tells you which participants the stream is aimed at. If

destination_identities

is empty, it means the stream is going out to everyone in the room. Otherwise, it lists the particular participant identities who will receive it. Here’s a simple way to do this: 1. *Sending a text stream to specific people:*`writer = await room.localParticipant.stream_text( topic="my-topic", destination_identities=["user1", "user2"] )` 2. *Handling an incoming text stream and checking who it’s for:*`def on_text_received(reader: rtc.TextStreamReader, participant_identity: str): info = reader.info if info.destination_identities: print(f"Stream is directed to: {info.destination_identities}") else: print("Stream is broadcast to all participants") # Process stream content async for chunk in reader: print(f"Received chunk: {chunk}")` Don’t forget, you need to register your handler for the topic to actually receive those streams:

room.register_text_stream_handler(topic="my-topic", handler=on_text_received)

By checking out

reader.info.destination_identities

, you’ll quickly see if the text stream is meant for certain participants or everyone in the room. Hope this helps! Sources: Sending text | LiveKit Docs | livekit-rtc/livekit/rtc/participant.py

i'm using room.local_participant.send_text('lk.chat') i want to check if the topic already has subscription

Hey there! The LiveKit Python SDK doesn’t have a built-in way to check if a topic has active subscriptions, but no worries—you can totally set up a custom solution to keep track of topic subscriptions on your end. Here’s a simple idea: • When clients start listening to a topic, they can send a “subscribe” message to a control topic. • Your server can then keep an eye on these messages to know who’s actively subscribed to each topic. If you’d like, I can help you with an example of how to build this kind of custom subscription tracking in Python. Just let me know! Sources: livekit-rtc/livekit/rtc/_proto/room_pb2.pyi | pkg/rtc/subscriptionmanager_test.go