pipecat version

0.0.92

Python version

3.12.10

Operating System

Ubuntu 24.04

Issue description

When passing a keyterm containing a space to the deepgram service, initialization fails at pipeline launch with

DeepgramFluxSTTService#0 initialization error: server rejected WebSocket connection: HTTP 400

Reproduction steps

1. Create a pipeline with the stt service as such

stt = DeepgramFluxSTTService(
    api_key=os.getenv("DEEPGRAM_API_KEY"),
    params=DeepgramFluxSTTService.InputParams(
        keyterm=["composed keyterm"]
    ),
)

2. Launch the pipeline

Expected behavior

Keyterms containing spaces can be passed as DeepgramFluxService input params, as they are supported by Nova-3.

For context, keyterms containing spaces are currently properly supported by DeepgramSTTService

Actual behavior

DeepgramFluxService fails on initialization when one of the passed keyterms contains a space.

Logs

DeepgramFluxSTTService#0 initialization error: server rejected WebSocket connection: HTTP 400