> For the complete documentation index, see [llms.txt](https://developers-apps-in-toss.toss.im/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers-apps-in-toss.toss.im/documentation/api-and-sdk-en/sdk/domains-api/ads/showfullscreenad.md).

# showFullScreenAd

### Feature description

`loadFullScreenAd`Show the preloaded interstitial ad to the user. `loadFullScreenAd`the same as used in `adGroupId`must be passed. Since ads that have already been displayed cannot be shown again, you must load a new one after the ad is closed.

Toss app `5.227.0` Can be used on versions above (`5.239.0` Above is Toss Ad + AdMob integration, below is AdMob only). Before calling `showFullScreenAd.isSupported()`You can check support with

### Type

```ts
showFullScreenAd(params: ShowFullScreenAdParams): () => void;
```

**Params**

```ts
type ShowFullScreenAdParams = {
  options: ShowFullScreenAdOptions;
  onEvent: (event: ShowFullScreenAdEvent) => void;
  onError: (error: unknown) => void;
};

type ShowFullScreenAdOptions = {
  /** The ad group ID used in loadFullScreenAd. */
  adGroupId: string;
};

type ShowFullScreenAdEvent =
  | { type: "requested" }
  | { type: "show" }
  | { type: "impression" }
  | { type: "clicked" }
  | { type: "dismissed" }
  | { type: "failedToShow" }
  | {
      type: "userEarnedReward";
      data: { unitType: string; unitAmount: number };
    };
```

Event `type` Value:

| type               | Description                                                              |
| ------------------ | ------------------------------------------------------------------------ |
| `requested`        | The request to show the ad succeeded                                     |
| `show`             | The ad was displayed on screen                                           |
| `impression`       | The ad impression was recorded (the point at which revenue is generated) |
| `clicked`          | The user clicked the ad                                                  |
| `dismissed`        | The user closed the ad                                                   |
| `failedToShow`     | Failed to show the ad                                                    |
| `userEarnedReward` | The user earned a reward (reward ads only)                               |

**Response**

Function that releases the app bridge callback (`() => void`) to release resources.

### Error

If ad display fails, `failedToShow` event or `onError` passed as a callback. Reward ads `userEarnedReward` You should grant the reward only when the event occurs.

### Example code

```js
import {
  loadFullScreenAd,
  showFullScreenAd,
} from "@apps-in-toss/web-framework";

const AD_GROUP_ID = "AD_GROUP_ID";
const button = document.querySelector("#show-full-screen-ad");

button.addEventListener("click", () => {
  const cleanup = showFullScreenAd({
    options: { adGroupId: AD_GROUP_ID },
    onEvent: (event) => {
      switch (event.type) {
        case "impression":
          console.log("Ad impression recorded (revenue generated)");
          break;
        case "userEarnedReward":
          console.log(
            "Reward earned:",
            event.data.unitType,
            event.data.unitAmount,
          );
          break;
        case "dismissed":
          console.log("The ad has been closed. Load the next ad again.");
          cleanup();
          break;
        case "failedToShow":
          console.error("Failed to show the ad.");
          cleanup();
          break;
      }
    },
    onError: (error) => {
      console.error(error);
      cleanup();
    },
  });
});
```


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