Extract Trace Context from HTTP Headers

Looks for a traceparent header (case-insensitive) in a named list of HTTP headers and parses it.

Usage

extract_trace_context(headers)

Arguments

headers

A named list of HTTP headers.

Value

A parsed trace context (named list with version, trace_id, span_id, sampled), or NULL if no valid traceparent is found.

Examples

headers <- list(
  "Content-Type" = "application/json",
  traceparent = "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01"
)
ctx <- extract_trace_context(headers)
ctx$trace_id
#> [1] "4bf92f3577b34da6a3ce929d0e0e4736"