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  "framework" : "AdAttributionKit",
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# beginView()

Begins recording a view-through impression when ad content corresponding to the impression becomes visible.

```
func beginView() async throws
```

## Discussion

Begin the view impression process by calling [`beginView()`](/documentation/AdAttributionKit/AppImpression/beginView()), as  the following example shows:

```swift
   func handleAdAppeared(impression: AppImpression) async {
       do {
           try await impression.beginView()
       }
       catch {
           print("Failed to begin view-through impression: \(error).")
       }
   }
```

---

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