Impression Level Data

CAS.AI SDK enables you to access detailed information for each impression through the impressions callback APIs. The information includes, for example, which demand source served the ad, the expected or exact revenue associated with it. In addition, it contains granular details to allow you to analyze and, ultimately, optimize user acquisition strategies.

OnAdImpressionListener

A functional interface for listening to ad impression events.

final OnAdImpressionListener _impressionListener = OnAdImpressionListener(
  onAdImpression: (ad) {
    // Called when an ad impression occurs. 
  },
);

Each ad format provides a setOnImpressionListener method on the ad object for registering a listener to receive AdContentInfo with impression details.

CASAppOpen appOpenAd;
appOpenAd.impressionListener = _impressionListener;

CASInterstitial interstitialAd;
interstitialAd.impressionListener = _impressionListener;

CASRewarded rewardedAd;
rewardedAd.impressionListener = _impressionListener;

NativeAdContent nativeAd;
nativeAd.impressionListener = _impressionListener;

AdContentInfo

The AdContentInfo data structure, which contains information about the loaded/displayed ad.

Before the impression occurs, AdContentInfo can be received via OnAdImpressionListener, ScreenAdContentCallback.

Additionally, each ad format has a getContentInfo() method that returns AdContentInfo, but the info may be null before the ad is loaded.

AdContentInfo info = eachAd.getContentInfo();

Name	Type	Description
format	AdFormat	Gets the format of the ad that is shown. See new AdFormat enum.
sourceName	String	Gets the display name of the mediated network that purchased the impression.
sourceId	Int	Gets the ID of the mediated network that purchased the impression. See new AdSourceId constants.
sourceUnitId	String	Gets the Ad Unit ID from the mediated network that purchased the impression.
creativeId	String?	Gets the Creative ID associated with the ad, if available. May be null. You can use this ID to report creative issues to the Ad review team.
revenue	Double	Gets the revenue generated from the impression, in USD. The revenue value may be either estimated or exact, depending on the precision specified by revenuePrecision.
revenuePrecision	Int	Gets the precision type of the revenue field. See new AdRevenuePrecision constants.
impressionDepth	Int	Gets the total number of impressions across all ad formats for the current user, across all sessions.
revenueTotal	Double	Gets the accumulated value of user ad revenue in USD from all ad format impressions.

User ad summary

CAS count the number of ad impressions and the total revenue of all formats at the time of a new impression.

int totalImpressions = await impression.getImpressionDepth();
double totalRevenue = await impression.getRevenueTotal();

Note

Progress is saved between sessions until the user clears your app's data.

Automatic collect ad revenue

The CAS SDK have features to automatically collect ad revenue to Google Analytics and Tenjin Analytics. Contact your account manager for details of enabling automatic events.

Google Analytics

If you haven't already, make sure to complete the following tasks:

1. Set up your project and app as described in Get Started with Analytics.
2. Make sure that you've linked your Firebase project to a Google Analytics account.
3. Ensure that you've included in your app the CAS SDK 3.5.0+.

To measure ad revenue, CAS SDK log ad_impression events whenever your user sees an advertisement in your app. These events contain details such as the ad platform, source, currency, and value. Optionally, the alternative event name can be CAS_Impression.

Tenjin

If you haven't already, make sure to complete the following tasks:

1. Set up your project and app as described in Get Started with Analytics.
2. Make sure that you've initialize tenjin session. Or provide TENJIN_SDK_KEY with CAS SDK initialization to allow CAS initialize Tenjin SDK automatically. builder.withMediationExtras("tenjin_key", TENJIN_SDK_KEY)
3. Ensure that you've included in your app the CAS SDK 3.7.2+.

Custom collect ad revenue

The following code shows an implementation example for log adImpression event to Google Analytics.

final OnAdImpressionListener _impressionListener = OnAdImpressionListener(
  onAdImpression: (ad) async {
    final params = <String, dynamic>{
      FirebaseAnalytics.Param.adPlatform: "CAS",
      FirebaseAnalytics.Param.adFormat: ad.format.toString(),
      FirebaseAnalytics.Param.adSource: ad.sourceName,
      FirebaseAnalytics.Param.adUnitName: ad.sourceUnitId,
      FirebaseAnalytics.Param.value: ad.revenue,
      // All CAS revenue is sent in USD  
      FirebaseAnalytics.Param.currency: "USD",
    };

    await FirebaseAnalytics.instance.logEvent(
      name: FirebaseAnalyticsEvent.adImpression,
      parameters: params,
    );
  },
);