Function startNewTrace

packages/opentelemetry/src/trace.ts:313–333

(callback: () => T)

 * `startInactiveSpan` and `startSpan` pick it up correctly.
 */
export function startNewTrace<T>(callback: () => T): T {
  const traceId = generateTraceId();
  const spanId = generateSpanId();

  const spanContext: SpanContext = {
    traceId,
    spanId,
    isRemote: true,
    traceFlags: TraceFlags.NONE,
  };

  const ctxWithTrace = trace.setSpanContext(context.active(), spanContext);

  return context.with(ctxWithTrace, () => {
    getCurrentScope().setPropagationContext({
      traceId,
      sampleRand: _INTERNAL_safeMathRandom(),
    });
    return callback();
  });
}

/**
 * Get the trace context for a given scope.