external trace id
Hi, I'm just starting to mess around with LangFuse and have a couple questions.
We run several chains of prompts through distributed queues/jobs. I would love to be able to pass around a trace id through the distributed jobs and be able to create spans/events/generations from that original trace id so they are all grouped together.
It looks like I couldn't create a new trace from another job with the same trace id that kicked off the job. From what I can tell I can't pass an id into
langfuse.trace(...) .
How would you recommend tracing across several distributed queues and async prompt chains?1 Reply
Hi @Deleted User, in this case I'd suggest to use the externalid on traces for now as it automatically upserts the trace (helpful in distributed architectures) and you can add generations/events/spans/scores based on this external id
Example
const trace = langfuse.trace({
name: "chat-app-session".
externalId: "my-apps-session-1234"
});
const span = langfuse.span({
traceId: "my-apps-session-1234",
traceIdType: "EXTERNAL",
name: "chat-interaction",
});