2.4 KiB
2.4 KiB
Langfuse Tracing for Pipecat
This demo showcases Langfuse tracing integration for Pipecat services via OpenTelemetry, allowing you to visualize service calls, performance metrics, and dependencies with a focus on LLM observability.
Pipecat trace in Langfuse:
https://github.com/user-attachments/assets/13dd7431-bf5e-42e3-8d6d-2ed84c51195d
Setup Instructions
1. Create a Langfuse Project and get API keys
Self-host Langfuse or create a free Langfuse Cloud account. Create a new project and get the API keys.
2. Environment Configuration
Base64 encode your Langfuse public and secret key:
echo -n "pk-lf-1234567890:sk-lf-1234567890" | base64
Create a .env file with your API keys to enable tracing:
ENABLE_TRACING=true
# OTLP endpoint for Langfuse
OTEL_EXPORTER_OTLP_ENDPOINT=https://cloud.langfuse.com/api/public/otel
OTEL_EXPORTER_OTLP_HEADERS=Authorization=Basic%20<base64_encoded_api_key>
# Set to any value to enable console output for debugging
# OTEL_CONSOLE_EXPORT=true
# Service API keys
DEEPGRAM_API_KEY=your_key_here
CARTESIA_API_KEY=your_key_here
OPENAI_API_KEY=your_key_here
3. Install Dependencies
pip install -r requirements.txt
Install only the http exporter. If you have a conflict, uninstall the grpc exporter.
4. Run the Demo
python bot.py
5. View Traces in Langfuse
Open your browser to https://cloud.langfuse.com to view traces.
Langfuse-Specific Configuration
In the bot.py file, note the HTTP exporter configuration:
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
# Create the exporter - configured from environment variables
otlp_exporter = OTLPSpanExporter()
# Set up tracing with the exporter
setup_tracing(
service_name="pipecat-demo",
exporter=otlp_exporter,
console_export=bool(os.getenv("OTEL_CONSOLE_EXPORT")),
)
Troubleshooting
- No Traces in Langfuse: Ensure that your credentials are correct and follow this troubleshooting guide
- Connection Errors: Verify network connectivity to Langfuse
- Authorization Issues: Check that your base64 encoding is correct and the API keys are valid