Flutter SDK

import 'package:flutter/material.dart';
import 'package:nohmo/nohmo.dart';
 
Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
 
  await Nohmo.init(
    projectId: 'proj_xxxx',   // from Settings → General → SDK credentials
    apiKey: 'pk_xxxx',
  );
 
  runApp(const MyApp());
}
 
class MyApp extends StatelessWidget {
  const MyApp({super.key});
 
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      // Screen views + time spent on every route change.
      navigatorObservers: [Nohmo.observer],
      // Every tap: PRESS, LONG_PRESS, RAGE_CLICK.
      builder: (context, child) => NohmoAutocapture(child: child!),
      home: const HomeScreen(),
    );
  }
}

// Name a manually constructed route
Navigator.push(context, MaterialPageRoute(
  settings: const RouteSettings(name: '/checkout'),
  builder: (_) => const CheckoutScreen(),
));
 
// Or derive names your own way — return null to skip a route
NohmoNavigatorObserver(
  nameExtractor: (route) => route.settings.name ?? route.runtimeType.toString(),
);
 
// Or name a screen that is not a route at all (tabs, PageView pages)
NohmoScreen(name: 'cart', child: CartView());

NohmoTracked(
  name: 'checkout_pay',
  child: ElevatedButton(onPressed: pay, child: const Text('Pay')),
)

// Button labels can carry a name, an email, an amount — this reports
// structure without any of them.
NohmoAutocapture(captureText: false, child: child!)

// Custom event — queued, persisted to disk, flushed as a batch
Nohmo.send('purchase_started', {'itemId': item.id, 'price': item.price});
 
// After login. Every earlier event, including past sessions, is
// retroactively attached to the user on the backend.
await Nohmo.linkUser(user.id, email: user.email, meta: {'plan': user.plan});
 
// Conversion goals are defined in Settings → Conversions
Nohmo.trackConversion('user_created');
Nohmo.trackConversion('money_deposit', {'amount': 500, 'currency': 'USD'});

try {
  await riskyThing();
} catch (e, stack) {
  Nohmo.recordError(e, stack, context: 'checkout');
}