@millions-hair-24956 I am trying to implement RPC method that would enable me to display data as a "feed" on frontend (I'm computing the feed object in backend, within an agent tool, and saving it as a json payload) - I always get Connection Timeout issues

To implement an RPC method for displaying data as a "feed" on the frontend, ensure that your RPC setup is correctly configured and that the response timeout is appropriately set. According to LiveKit Docs, the

performRpc

method allows you to specify a

response_timeout

parameter, which determines how long the caller will wait for a response. If you are experiencing connection timeout issues, consider increasing this timeout value to accommodate the time required for your backend to compute and send the feed data. Additionally, ensure that your network configuration allows for stable connections. As per , make sure the necessary ports are open and accessible. If the issue persists, check for any network latency or connectivity issues that might be causing the timeouts. Would you like more detailed guidance on setting up the RPC method or troubleshooting the connection issues? Sources: - LiveKit Docs - Figure 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

@millions-hair-24956 I declared the mock rpc method in my front:

useEffect(() => {
    if (localParticipant) {
      localParticipant.registerRpcMethod(
        "displayFeed",
        async (data: RpcInvocationData) => {
          const attributes = JSON.parse(data.payload);
          console.log(attributes);
          return JSON.stringify({ shown: true });
        },
      );
    }
  }, []);

and calling it like this front python

feed_rpc_method = "displayFeed"
                feed_destination_identity = ctx.room.local_participant.identity
                <http://LOGGER.info|LOGGER.info>(f"RPC method {feed_rpc_method} invoked, with destination identity {feed_destination_identity}")
                feed_response = await ctx.room.local_participant.perform_rpc(
                    method=feed_rpc_method,
                    destination_identity=feed_destination_identity,
                    payload=feed_payload,
                )

is it the right approach? not sure regarding the destination identity

Your approach to implementing the RPC method seems mostly correct, but there are a few considerations to ensure it functions as expected: 1. Destination Identity: The

destination_identity

should be the identity of the participant on which the RPC method is registered. If you want to call the method on the frontend, ensure that the

destination_identity

matches the identity of the

localParticipant

on the frontend where the method is registered. 2. Response Timeout: Ensure that the

perform_rpc

call has an appropriate

response_timeout

set, as the default might not be sufficient if the backend processing takes longer. You can specify this in the

perform_rpc

call. 3. Error Handling: Implement error handling in both the RPC method registration and invocation to catch any issues that might arise during the process. Here's a refined version of your code with these considerations: Frontend (JavaScript/React):

useEffect(() => {
  if (localParticipant) {
    localParticipant.registerRpcMethod(
      "displayFeed",
      async (data: RpcInvocationData) => {
        try {
          const attributes = JSON.parse(data.payload);
          console.log(attributes);
          return JSON.stringify({ shown: true });
        } catch (error) {
          console.error("Error processing RPC data:", error);
          throw new Error("Failed to process data");
        }
      },
    );
  }
}, [localParticipant]);

Backend (Python):

feed_rpc_method = "displayFeed"
feed_destination_identity = ctx.room.local_participant.identity
LOGGER.info(f"RPC method {feed_rpc_method} invoked, with destination identity {feed_destination_identity}")

try:
    feed_response = await ctx.room.local_participant.perform_rpc(
        method=feed_rpc_method,
        destination_identity=feed_destination_identity,
        payload=feed_payload,
        response_timeout=10.0  # Adjust timeout as needed
    )
    LOGGER.info(f"RPC response: {feed_response}")
except RpcError as e:
    LOGGER.error(f"RPC call failed: {e.message}")

Ensure that the

destination_identity

is correctly set to the participant's identity where the RPC method is registered. If you continue to experience issues, verify that the identities match and that there are no network issues affecting the connection. Would you like more detailed guidance on any specific part of this setup? Sources: - LiveKit Docs 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.