make unit optional

Author: AbhiPrasad

packages/core/src/metrics/index.ts

@@ -1,4 +1,4 @@
-import type { DsnComponents, DynamicSamplingContext, SdkMetadata, StatsdEnvelope, StatsdItem } from '@sentry/types'
+import type { DsnComponents, DynamicSamplingContext, SdkMetadata, StatsdEnvelope, StatsdItem } from '@sentry/types';
 import { createEnvelope, dropUndefinedKeys, dsnToString } from '@sentry/utils';
 
 /**

packages/types/src/envelope.ts

@@ -109,5 +109,11 @@ export type ReplayEnvelope = [ReplayEnvelopeHeaders, [ReplayEventItem, ReplayRec
 export type CheckInEnvelope = BaseEnvelope<CheckInEnvelopeHeaders, CheckInItem>;
 export type StatsdEnvelope = BaseEnvelope<StatsdEnvelopeHeaders, StatsdItem>;
 
-export type Envelope = EventEnvelope | SessionEnvelope | ClientReportEnvelope | ReplayEnvelope | CheckInEnvelope | StatsdEnvelope;
+export type Envelope =
+  | EventEnvelope
+  | SessionEnvelope
+  | ClientReportEnvelope
+  | ReplayEnvelope
+  | CheckInEnvelope
+  | StatsdEnvelope;
 export type EnvelopeItem = Envelope[1][number];

packages/types/src/metrics.ts

@@ -1,10 +1,10 @@
-import type { Primitive } from './misc';
 import type { MeasurementUnit } from './measurement';
+import type { Primitive } from './misc';
 
 export interface BaseMetric {
   name: string;
   timestamp: number;
-  unit: MeasurementUnit;
+  unit?: MeasurementUnit;
   tags?: { [key: string]: Primitive };
 }