GetX: State Management, DI, and Routing in One Package

Most Flutter state management libraries solve one problem well — Riverpod and Provider focus on state, go_router focuses on navigation, get_it focuses on dependency injection. GetX takes the opposite approach: it’s one package that tries to solve state management, dependency injection, and routing all at once, with as little boilerplate as possible.

If you haven’t set up a Flutter project yet, see our installation walkthrough first.

What GetX actually offers

1. Reactive state management. You mark a variable as observable with .obs, and any widget wrapped in Obx that reads it rebuilds automatically when it changes — no StatefulWidget, no notifyListeners(), no provider wiring.

2. Dependency injection. Get.put(), Get.find(), and Get.lazyPut() act as a simple service locator. You register a controller or service once, and any part of the app can retrieve the same instance without passing it down through constructors or the widget tree.

3. Route management without BuildContext. Get.to(), Get.back(), Get.snackbar(), and Get.dialog() all work from anywhere — a controller, a service, a callback — because GetX keeps its own reference to the navigator instead of requiring a BuildContext. This is convenient, though it’s also the single most debated design choice in GetX (more on that below).

A counter app with GetX

Add the dependency:

dependencies:
  get: ^4.6.6

Replace MaterialApp with GetMaterialApp so GetX’s routing and overlay features (snackbars, dialogs) work app-wide:

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return GetMaterialApp(
      title: 'GetX Counter',
      home: const CounterPage(),
    );
  }
}

Define a controller — a plain Dart class, no extends State needed:

import 'package:get/get.dart';

class CounterController extends GetxController {
  final count = 0.obs; // observable int

  void increment() => count.value++;
}

Register it and consume it in the UI:

class CounterPage extends StatelessWidget {
  const CounterPage({super.key});

  @override
  Widget build(BuildContext context) {
    final controller = Get.put(CounterController());

    return Scaffold(
      appBar: AppBar(title: const Text('GetX Counter')),
      body: Center(
        child: Obx(() => Text('Button tapped ${controller.count.value} times')),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: controller.increment,
        child: const Icon(Icons.add),
      ),
    );
  }
}

Get.put registers the controller instance the first time this widget builds; Obx subscribes only to the .obs values actually read inside it, so only the Text rebuilds when count changes — not the whole Scaffold. Navigating away and calling Get.to(() => OtherPage()) or showing Get.snackbar('Hi', 'no context needed') works from anywhere, including from inside CounterController itself, without threading a BuildContext through.

How GetX compares to Riverpod, Provider, and Bloc

	GetX	Riverpod	Provider	Bloc
Scope	State + DI + routing	State (DI-adjacent)	State (DI-adjacent)	State only
Boilerplate	Very low	Low–medium	Medium	High
BuildContext needed	No	No (providers), yes for widgets	Yes	Yes for widgets
Compile-time safety	Weaker — relies on runtime lookups (Get.find)	Strong — typed providers	Medium	Strong — typed events/states
Testability	Good, but globals need care	Very good — easy to override providers	Good	Very good — designed around testing
Learning curve	Low	Medium	Low–medium	Medium–high
Common criticism	Global service-locator pattern can hide dependencies; “magic”	More setup for trivial cases	Verbose for deeply nested state	Verbose for simple state

The honest way to frame it: GetX optimizes for speed of writing code and gets you shipping fast, especially for small-to-mid apps or solo projects. Riverpod and Bloc optimize for long-term maintainability and testability in larger codebases — Riverpod by keeping everything explicit and compiler-checked (see our Riverpod deep dive), Bloc by enforcing a strict, predictable event-to-state contract. Provider sits in between as the simpler ancestor Riverpod was built to replace.

None of these are objectively “correct” — a solo developer prototyping an MVP and a team maintaining a banking app have very different priorities, and the Flutter ecosystem deliberately supports both ends of that spectrum.

Made with ❤️ by Vaibhav Hariramani