unrouter 0.9.0

A URL-first typed router for Flutter with shell navigation and diagnostics.

unrouter

A URL-first typed router for Flutter.

Why unrouter

• Typed route objects via RouteData
• Route matching powered by roux
• Browser history integration via unstory
• Core API by default with an optional machine layer

Install

flutter pub add unrouter

Entrypoints

• package:unrouter/unrouter.dart: core routing API
• package:unrouter/machine.dart: machine commands

Import unrouter.dart explicitly. Other entrypoints do not re-export core APIs.

Quick start

import 'package:flutter/material.dart';
import 'package:unrouter/unrouter.dart';

sealed class AppRoute implements RouteData {
  const AppRoute();
}

final class HomeRoute extends AppRoute {
  const HomeRoute();
  @override
  Uri toUri() => Uri(path: '/');
}

final class UserRoute extends AppRoute {
  const UserRoute(this.id);
  final int id;
  @override
  Uri toUri() => Uri(path: '/users/$id');
}

void main() {
  final router = Unrouter<AppRoute>(
    routes: [
      route<HomeRoute>(
        path: '/',
        parse: (_) => const HomeRoute(),
        builder: (_, __) => const Text('Home'),
      ),
      route<UserRoute>(
        path: '/users/:id',
        parse: (state) => UserRoute(state.pathInt('id')),
        builder: (_, route) => Text('User ${route.id}'),
      ),
    ],
    unknown: (_, uri) => Text('404 ${uri.path}'),
  );

  runApp(MaterialApp.router(routerConfig: router));
}

Navigation

context.unrouter.go(const HomeRoute());
context.unrouter.push(const UserRoute(42));
context.unrouter.replace(const UserRoute(7));
final int? result = await context.unrouter.push<int>(const UserRoute(42));
context.unrouter.pop(7);

Example app

cd example
flutter pub get
flutter run -d chrome

Docs

• Overview: doc/README.md
• Getting started: doc/getting_started.md
• Core routing: doc/core_routing.md
• Machine API: doc/machine_api.md
• Contracts: doc/state_envelope.md
• Benchmark guide: doc/router_benchmarking.md