make measurements undefined

Author: s1gr1d

packages/core/src/tracing/measurement.ts

@@ -23,7 +23,11 @@ export function setMeasurement(name: string, value: number, unit: MeasurementUni
 /**
  * Convert timed events to measurements.
  */
-export function timedEventsToMeasurements(events: TimedEvent[]): Measurements {
+export function timedEventsToMeasurements(events: TimedEvent[]): Measurements | undefined {
+  if (!events || events.length === 0) {
+    return undefined;
+  }
+
   const measurements: Measurements = {};
   events.forEach(event => {
     const attributes = event.attributes || {};

packages/opentelemetry/src/spanExporter.ts

@@ -143,7 +143,7 @@ function maybeSend(spans: ReadableSpan[]): ReadableSpan[] {
     transactionEvent.spans = spans;
 
     const measurements = timedEventsToMeasurements(span.events);
-    if (Object.keys(measurements).length) {
+    if (measurements && Object.keys(measurements).length) {
       transactionEvent.measurements = measurements;
     }
 

packages/types/src/span.ts

@@ -57,7 +57,7 @@ export interface SpanJSON {
   _metrics_summary?: Record<string, Array<MetricSummary>>;
   profile_id?: string;
   exclusive_time?: number;
-  measurements: Measurements;
+  measurements?: Measurements;
 }
 
 // These are aligned with OpenTelemetry trace flags