RevenueCat data integration into Google Firebase Analytics

I don’t think it’s possible to integrate directly since there isn’t a REST API to hook into Firebase Analytics - only device side tracking.

I would also love to know if anyone has found any creative solutions.

The best thing I know is to export the Firebase Analytics to Big Query, then set up a RevenueCat ETL to Google storage which you can also send into Big Query. 

It would be really useful to see the integration of RC sending events to Google Analytics / GA4!  Since we use RC as the source of truth for subscriptions and entitlements this is really a needed and useful connection.  Can this happen sometime soon?

Jens, any updates on this? I’ve created Firebase integration but still do not see events on Google Analytics side. Do you have any requirements for minimum SDK version that can properly support this functionality. So far I see that firebase app instance id is passed via subscriber attributes, so additional  client code is not required. I use Flutter SDK 2.0.3

Hey @Anastasiia Stepanova 

A fix has been deployed last week, you should start seeing events populating in Google Analytics now. Check out the Realtime view to confirm you’re receiving events. Let us know if there’s any issues!

The issue was in Google Analytics app instance id, it is not the same as Firebase app instance id.

• Google Analytics app instance id is 32 HEX like this 9247fac65b9e4e76710904ae59ff0469
• Firebase app instance id looks is 22 long like this Eol2-beETE-_cfkgTCswiQ

As soon as we’ve provided Google Analytics app instance id, RC events were displayed in the Google Analytics dashboard.

I know that it looks strange, my expectation was that Firebase app instance id is used everywhere in Firebase/Google ecosystem… I should note that I use not the latest libraries to get Firebase instance id, but they are not too old. I have checked this on pure Android Java implementation and get different ids by invoking two pieces of code:

Firebase app instance id:

FirebaseInstallations.getInstance().getId().addOnCompleteListener(new OnCompleteListener<String>() {    @Override    public void onComplete(@NonNull com.google.android.gms.tasks.Task<String> task) {            String appInstanceId= task.getResult();    }});

Google Analytics app instance id:

FirebaseAnalytics.getInstance(this).getAppInstanceId().addOnCompleteListener(new OnCompleteListener<String>() {    @Override    public void onComplete(@NonNull com.google.android.gms.tasks.Task<String> task) {            String appInstanceId = task.getResult();    }});

As for flutter I use 1.22.6, thus I had to write platform specific native code to get Google Analytics app instance id. I used this great library as a source:

https://github.com/cingulo/firebase_instance_id

Just for reference in case someone face the same problem with using correct firebase analytics app instance id - https://stackoverflow.com/questions/62990995/what-is-the-difference-between-app-instance-id-and-instance-id-in-firebase

@penlab_kumu I provided example of native code that I used on Android side to get correct instance id. Read this thread. You should use this:

FirebaseAnalytics.getInstance(this).getAppInstanceId().addOnCompleteListener(new OnCompleteListener<String>() {    @Override    public void onComplete(@NonNull com.google.android.gms.tasks.Task<String> task) {            String appInstanceId = task.getResult();    }});

I found a solution, but it’s completely ugly. It’s better if RevenueCat had integration with Google Analytics.

1) Get Google Client ID

const getGoogleAnalyticsClientId = () => {
    try {
        return document.cookie.match(/_ga=(.+?);/)[1].split('.').slice(-2).join(".");
    } catch(e) {
        return undefined;
    }
}

2) Set it as Attributes to Revenue Cat.

RevenueCat.Purchases.setAttributes({ 'ga_client_id': gaClientId })

3) Set up Web Hooks in Revenue Cat to deliver these events to your backend.

4) Set up backend to deliver these event to GA using Measurement Protocol.

const measurement_id = `G-XXXXXXXXXX`;
const api_secret = `<secret_value>`;

fetch(`https://www.google-analytics.com/mp/collect?measurement_id=${measurement_id}&api_secret=${api_secret}`, {
  method: "POST",
  body: JSON.stringify({
    client_id: 'XXXXXXXXXX.YYYYYYYYYY',
    events: [{
      // Event names must start with an alphabetic character.
      name: '_badEventName',
      params: {},
    }]
  })
});

Details here https://developers.google.com/analytics/devguides/collection/protocol/ga4/sending-events?client_type=gtag#required_parameters