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Manages a nonce and its event reporting for a single content playback session. The content playback session lifecycle methods, including `sendAdClick`, `sendAdTouch`, `sendPlaybackStart`, and `sendPlaybackEnd` must be called as these respective events occur in order to enable programmatic monetization.

| Methods ||
|---|---|
| `https://developers.google.com/ad-manager/pal/html5/reference/class/goog.pal.NonceManager#goog.pal.NonceManager.getNonce` |   |
| `https://developers.google.com/ad-manager/pal/html5/reference/class/goog.pal.NonceManager#goog.pal.NonceManager.sendAdClick` | Notifies Google ad servers that a clickthrough on an ad has occurred during the given content playback session. |
| `https://developers.google.com/ad-manager/pal/html5/reference/class/goog.pal.NonceManager#goog.pal.NonceManager.sendAdImpression` | **Deprecated.**Notifies Google ad servers that the first frame of the ad that was requested with the nonce generated by this manager is displayed. |
| `https://developers.google.com/ad-manager/pal/html5/reference/class/goog.pal.NonceManager#goog.pal.NonceManager.sendAdTouch` | Notifies Google ad servers that a user touch or click on the ad other than a clickthrough (for example, skip, mute, tap, and more.) has occurred during the given content playback session. |
| `https://developers.google.com/ad-manager/pal/html5/reference/class/goog.pal.NonceManager#goog.pal.NonceManager.sendPlaybackEnd` | Notifies Google ad servers that playback for the given content playback session has ended. |
| `https://developers.google.com/ad-manager/pal/html5/reference/class/goog.pal.NonceManager#goog.pal.NonceManager.sendPlaybackStart` | Notifies Google ad servers that playback for the given content playback session has started. |

## Methods

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### getNonce

`getNonce(): string`

| Returns ||
|---|---|
| `string` | The nonce generated for this manager when it is loaded. This value never changes for a given `NonceManager` instance. This nonce value is only valid for a single content playback session up to a maximum duration of 6 hours. |

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### sendAdClick

`sendAdClick(): void` Notifies Google ad servers that a clickthrough on an ad has occurred during the given content playback session.

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### sendAdImpression

`sendAdImpression(): void` Notifies Google ad servers that the first frame of the ad that was requested with the nonce generated by this manager is displayed.

> [!WARNING]
> **Deprecated:** Use `sendPlaybackStart` and `sendPlaybackEnd` instead.

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### sendAdTouch

`sendAdTouch(clickOrTouchEvent: MouseEvent | TouchEvent): void` Notifies Google ad servers that a user touch or click on the ad other than a clickthrough (for example, skip, mute, tap, and more.) has occurred during the given content playback session.

| Parameters ||
|---|---|
| `clickOrTouchEvent: MouseEvent | TouchEvent` | The browser touch or click event that was fired for the user interaction. |

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### sendPlaybackEnd

`sendPlaybackEnd(): void` Notifies Google ad servers that playback for the given content playback session has ended. Call this method when playback ends (for example, when the player reaches end of stream, or when the user exits playback mid-way, or when the user leaves the page, or when advancing to the next content item in a playlist setting).  

This method ends the asynchronous calls to Google servers started in `sendPlaybackStart`.

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### sendPlaybackStart

`sendPlaybackStart(): void` Notifies Google ad servers that playback for the given content playback session has started. Call this method on video player start. This may be in response to a user-initiated action (click-to-play) or a page initiated action (autoplay).  

This method starts asynchronous calls to Google servers to collect signals needed for IVT monitoring and detection.