add enableMeasurements option to browser tracing options

Author: dashed

packages/tracing/src/browser/browsertracing.ts

@@ -20,6 +20,14 @@ export const DEFAULT_MAX_TRANSACTION_DURATION_SECONDS = 600;
 
 /** Options for Browser Tracing integration */
 export interface BrowserTracingOptions extends RequestInstrumentationOptions {
+  /**
+   * Flag to attach measurements to transactions.
+   *
+   * Default: false
+   * @hidden
+   */
+  enableMeasurements: boolean;
+
   /**
    * The time to wait in ms until the transaction will be finished. The transaction will use the end timestamp of
    * the last finished span as the endtime for the transaction.
@@ -95,6 +103,7 @@ export class BrowserTracing implements Integration {
 
   /** Browser Tracing integration options */
   public options: BrowserTracingOptions = {
+    enableMeasurements: false,
     beforeNavigate: defaultBeforeNavigate,
     idleTimeout: DEFAULT_IDLE_TIMEOUT,
     markBackgroundTransactions: true,
@@ -135,6 +144,8 @@ export class BrowserTracing implements Integration {
       ..._options,
       tracingOrigins,
     };
+
+    this._metrics.enableMeasurements(this.options.enableMeasurements);
   }
 
   /**

packages/tracing/src/browser/metrics.ts

@@ -19,6 +19,7 @@ const global = getGlobalObject<Window>();
 export class MetricsInstrumentation {
   private _lcp: Record<string, any> = {};
   private _measurements: Measurements = {};
+  private _enableMeasurements: boolean = false;
 
   private _performanceCursor: number = 0;
 
@@ -33,6 +34,15 @@ export class MetricsInstrumentation {
     }
   }
 
+  /**
+   * Enable or disable attachment of measurements to transactions.
+   * @hidden
+   */
+  public enableMeasurements(enable: boolean): void {
+    this._enableMeasurements = enable;
+  }
+
+
   /** Add performance related spans to a transaction */
   public addPerformanceEntries(transaction: Transaction): void {
     if (!global || !global.performance || !global.performance.getEntries) {
@@ -136,7 +146,7 @@ export class MetricsInstrumentation {
     this._performanceCursor = Math.max(performance.getEntries().length - 1, 0);
 
     // Measurements are only available for pageload transactions
-    if (transaction.op === 'pageload') {
+    if (transaction.op === 'pageload' && this._enableMeasurements) {
       transaction.setMeasurements(this._measurements);
     }
   }