Google Ads / Firebase Integration to user identifier

[rafaeldev]

Hi everyone!

I spend a few days searching about this integration

My PWA is delivered in the Play Store, and I am investing some money in Google Ads to find users. I created a Firebase integration on the app, and some events appear in Google Analytics.

The problem is that I can't join the user who was impacted by the campaign with my user from the system. I need to tell Google Ads, "Hey, this user with that behavior bought a product," to improve Google lead search.

I found a way to join these parts with GCLID => https://support.google.com/google-ads/answer/9744275?hl=en

I saw some implementation from ChatGPT but anyone make sense to me (i'm not a android developer):

import android.net.Uri;
import android.os.Bundle;
import android.os.RemoteException;

import com.android.installreferrer.api.InstallReferrerClient;
import com.android.installreferrer.api.InstallReferrerStateListener;
import com.android.installreferrer.api.ReferrerDetails;

public class LauncherActivity extends com.google.androidbrowserhelper.trusted.LauncherActivity {

    private InstallReferrerClient referrerClient;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        referrerClient = InstallReferrerClient.newBuilder(this).build();
        referrerClient.startConnection(new InstallReferrerStateListener() {
            @Override
            public void onInstallReferrerSetupFinished(int responseCode) {
                switch (responseCode) {
                    case InstallReferrerClient.InstallReferrerResponse.OK:
                        try {
                            // Captura os dados do referrer
                            ReferrerDetails response = referrerClient.getInstallReferrer();
                            String referrer = response.getInstallReferrer();
                            String gclid = Uri.parse("https://dummy.com?" + referrer).getQueryParameter("gclid");

                            if (gclid != null && !gclid.isEmpty()) {
                                System.out.println("get GCLID from Install Referrer: " + gclid);
                                // Você pode armazenar ou enviar o GCLID ao backend aqui
                                sendGclidToBackend(gclid);
                            }
                        } catch (RemoteException e) {
                            e.printStackTrace();
                        } finally {
                            referrerClient.endConnection();
                        }
                        break;

                    case InstallReferrerClient.InstallReferrerResponse.FEATURE_NOT_SUPPORTED:
                        System.out.println("API Install Referrer não suportada neste dispositivo.");
                        break;

                    case InstallReferrerClient.InstallReferrerResponse.SERVICE_UNAVAILABLE:
                        System.out.println("API Install Referrer não está disponível no momento.");
                        break;

                    default:
                        System.out.println("Erro desconhecido na API Install Referrer.");
                }
            }

            @Override
            public void onInstallReferrerServiceDisconnected() {
                // Tente reconectar, se necessário
                System.out.println("Conexão com Install Referrer perdida.");
            }
        });
    }

    @Override
    protected Uri getLaunchingUrl() {
        // Retorna a URL original de início
        return super.getLaunchingUrl();
    }

    private void sendGclidToBackend(String gclid) {
        // Exemplo: Envie o gclid ao backend
        System.out.println("Enviando GCLID ao backend: " + gclid);
        // Você pode implementar aqui uma chamada HTTP ou outro mecanismo
    }
}

Finally, I only need to put these user identifiers at my entrypoint URL system before the browser open
`https://app.system.com?source=pwa&cglid=xpto1&client_id=xpto2