Module propagation 

W3C Trace Context propagation — the single place incoming traceparent headers are parsed and per-hop span IDs are minted.

Every request boundary (HTTP macro routes, plugin routes) calls extract_trace_context; outgoing propagation is handled by RequestContext::traceparent().

Structs

TraceContext

Distributed-tracing identity for one server hop.

Functions

extract_trace_context

Continue the caller’s trace if a valid traceparent header is present; otherwise start a new root trace.