Add analytics to Flutter.

// pubspec.yaml: dependencies: http: ^1.0.0
import 'package:http/http.dart' as http;
import 'dart:convert';

const host = 'https://YOUR-INSTANCE';
const key = 'WRITE_KEY';

Future<void> track(String name, String distinctId, [Map<String, dynamic>? props]) {
  return http.post(
    Uri.parse('$host/v1/events'),
    headers: {'Content-Type': 'application/json', 'Authorization': 'Bearer $key'},
    body: jsonEncode({'name': name, 'distinct_id': distinctId, 'properties': props ?? {}}),
  );
}

// batch: POST a JSON array to the same endpoint to save calls
// http.post(..., body: jsonEncode([event1, event2, event3]));

There is no Flutter SDK. This is a plain http POST, so put it in a shared analytics service and call it from route observers and button handlers.

Wire track() into a NavigatorObserver so every screen push logs a name like screen_view with the route name in properties, and call it on your key taps (add to cart, upgrade, submit). Use a stable distinct_id per user (your user id after login, a device id before). That gives you funnels and retention without a single native dependency.

Because each call is an HTTP round trip, batch on mobile. Buffer events in a list and flush a JSON array to /v1/events every few seconds or on app background, so you save battery and radio wakeups. Same endpoint, same write key, whether the buffer holds one event or fifty. Then open the dashboard bar and ask where users drop off, no query language.

Honest pricing: 14-day full trial, no credit card. Then Solo $29/mo, never metered on seats or sites. Overage is $5/million with an emailed receipt, the dashboard never locks, and self-hosting the single Go binary is free forever (MIT).

questions