Function generateSentryTraceHeader

packages/core/src/utils/tracing.ts:94–104

(
  traceId: string | undefined = generateTraceId(),
  spanId: string | undefined = generateSpanId(),
  sampled?: boolean,
)

 * Create sentry-trace header from span context values.
 */
export function generateSentryTraceHeader(
  traceId: string | undefined = generateTraceId(),
  spanId: string | undefined = generateSpanId(),
  sampled?: boolean,
): string {
  let sampledString = '';
  if (sampled !== undefined) {
    sampledString = sampled ? '-1' : '-0';
  }
  return `${traceId}-${spanId}${sampledString}`;
}

/**
 * Creates a W3C traceparent header from the given trace and span ids.