Langfuse tracing customization

[limon8884]

Question

Hi guys, I want to use pydantic-ai with langfuse
I setup Angent.instrument_all(), provided langfuse credentials, and the tracing works fine!

However, I need more customization. In particular, I want to provide the existing trace-id (or parent id) where to write traces for pydantic-ai (for example, in this format https://www.w3.org/TR/trace-context/#examples-of-http-traceparent-headers)
I can do this directly in langfuse: https://langfuse.com/docs/observability/features/trace-ids-and-distributed-tracing#:~:text=trace_context%3D%7B%22trace_id%22%3A%20trace_id%7D

So, I am wondering if it is possible to do the same configuration in pydantic-ai?

Additional Context

Versions:
pydantic-ai==0.7.1
Python 3.12.3

[DouweM]

@limon8884 You can use logfire.propagate.attach_context as documented at https://logfire.pydantic.dev/docs/how-to-guides/distributed-tracing/#manual-context-propagation to attach the traceparent header value to all traces inside that context manager.