GA4 - app - flutter - sign_up

// sign_up
await FirebaseAnalytics.instance.logEvent(
    name: "sign_up",
    parameters: {
        "method": google,  // E.g. google, facebook, email
        "business_type": b2c,  // b2b or b2c
        "page_category": knjige,  // knjige, nekretnine, posao, usluge, etc, ostale stranice
    },
);