Adding user_id to Token Tracing with litellm and langfuse as a proxy

[octadion]

I'm currently using litellm as a proxy with langfuse for tracing tokens in MS GraphRAG. I want to include a user_id in the tracing process to better track and manage user interactions.

Could anyone guide me on how to add or configure the user_id within this setup? Any advice or examples would be greatly appreciated!

Thanks in advance

[ishaan-jaff]

pass user in all your /chat/completions request. LiteLLM will send this Langfuse