telemetry

func Extract ¶

func Extract(ctx context.Context, parent string) context.Context

Only traceparent crosses trust boundaries. Never propagate baggage or tracestate, which can contain arbitrary caller-controlled values.

func Inject ¶

func Inject(ctx context.Context, header http.Header)

func Parent ¶

func Parent(ctx context.Context) string

func Provider ¶

func Provider(service, exporter string, writer io.Writer) (*sdktrace.TracerProvider, error)

Provider uses a bounded, non-blocking batch queue. Traces are diagnostic, not a durable audit log: a crash or full exporter queue can lose spans.

func TraceID ¶

func TraceID(ctx context.Context) string