Execute Expression with Trace-Correlated Logging — with_trace

Wraps message handlers to prepend trace context (trace ID and span ID) to log messages emitted via message(). This makes it easy to correlate log output with distributed traces.

Usage

with_trace_logging(expr)

Arguments

expr: Expression to evaluate.

Value

Result of evaluating expr.

Examples

with_trace("demo", {
  with_span("step", type = "custom", {
    with_trace_logging({
      message("hello from inside a span")
    })
  })
})
#> [trace_id=c404937460e04b627be2bcb557d2e437 span_id=eb2667dbb73c8c51] hello from inside a span
#> NULL