ref(replay): Capture parametrized route

Author: mydea

packages/replay/src/replay.ts

@@ -1,7 +1,7 @@
 /* eslint-disable max-lines */ // TODO: We might want to split this file up
 import { EventType, record } from '@sentry-internal/rrweb';
 import { captureException, getCurrentHub } from '@sentry/core';
-import type { Breadcrumb, ReplayRecordingMode } from '@sentry/types';
+import type { Breadcrumb, ReplayRecordingMode, Transaction } from '@sentry/types';
 import { logger } from '@sentry/utils';
 
 import {
@@ -65,6 +65,12 @@ export class ReplayContainer implements ReplayContainerInterface {
    */
   public recordingMode: ReplayRecordingMode = 'session';
 
+  /**
+   * The current or last active transcation.
+   * This is only available when performance is enabled.
+   */
+  public lastTransaction?: Transaction;
+
   /**
    * These are here so we can overwrite them in tests etc.
    * @hidden
@@ -546,6 +552,19 @@ export class ReplayContainer implements ReplayContainerInterface {
     this._context.urls.push(url);
   }
 
+  /**
+   * This will get the parametrized route name of the current page.
+   * This is only available if performance is enabled, and if an instrumented router is used.
+   */
+  public getCurrentRoute(): string | undefined {
+    const lastTransaction = this.lastTransaction || getCurrentHub().getScope().getTransaction();
+    if (!lastTransaction || ['route', 'custom'].includes(lastTransaction.metadata.source)) {
+      return undefined;
+    }
+
+    return lastTransaction.name;
+  }
+
   /**
    * Initialize and start all listeners to varying events (DOM,
    * Performance Observer, Recording, Sentry SDK, etc)

packages/replay/src/types.ts

@@ -4,6 +4,7 @@ import type {
   ReplayRecordingData,
   ReplayRecordingMode,
   SentryWrappedXMLHttpRequest,
+  Transaction,
   XhrBreadcrumbHint,
 } from '@sentry/types';
 
@@ -498,6 +499,7 @@ export interface ReplayContainer {
   session: Session | undefined;
   recordingMode: ReplayRecordingMode;
   timeouts: Timeouts;
+  lastTransaction?: Transaction;
   isEnabled(): boolean;
   isPaused(): boolean;
   getContext(): InternalEventContext;
@@ -516,6 +518,7 @@ export interface ReplayContainer {
   getSessionId(): string | undefined;
   checkAndHandleExpiredSession(): boolean | void;
   setInitialState(): void;
+  getCurrentRoute(): string | undefined;
 }
 
 export interface ReplayPerformanceEntry<T> {

packages/replay/src/util/addGlobalListeners.ts

@@ -40,6 +40,16 @@ export function addGlobalListeners(replay: ReplayContainer): void {
         dsc.replay_id = replayId;
       }
     });
+
+    client.on('startTransaction', transaction => {
+      replay.lastTransaction = transaction;
+    });
+
+    // We may be missing the initial startTransaction due to timing issues,
+    // so we capture it on finish again.
+    client.on('finishTransaction', transaction => {
+      replay.lastTransaction = transaction;
+    });
   }
 }