m4d_router 0.2.18

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Material4Dart router

m4d_router is a client routing library for Dart. It helps make building single-page web apps and using HttpServer easier.



Add this package to your pubspec.yaml file:

  m4d_router: any

Then, run pub get to download and link in the package.


Live: m4d_router.example.mikemitterer.at
Source on GitHub

void main() {
    final router = new Router();

    configLogging(show: Level.INFO);

    dom.querySelector('#output').text = 'Your Dart app is running.';

void _configRouter(final Router router ) {

        ..addRoute(name: "Test I", path: new UrlPattern('/#/test'),
            enter: (final RouteEnterEvent event) {
                _logger.info("Path: ${event.path} Params: ${event.params.join(",")}");

        ..addRoute(name: 'Cats', path: new ReactPattern('/cats'),
            enter: (final RouteEnterEvent event) {
                _logger.info("Path: ${event.path} Params: ${event.params.join(",")}");

        ..addRoute(name: 'Specific cat', path: new ReactPattern(r'/cats/(\w+)'),
            enter: (final RouteEnterEvent event) {
                _log("${event.route.title}: ${event.params.join(",")}");
                _logger.info("Path: ${event.path} Params: ${event.params.join(",")}");
                if(event.params.first.toLowerCase() == "grumpy") {
                } else {

        ..addRoute(name: "Google for cats", path: new ReactPattern('/google'),
            enter: (final RouteEnterEvent event) {
                _logger.info("Path: ${event.path} Params: ${event.params.join(",")}");

    // optional
    router.onEnter.listen((final RouteEnterEvent event) {
        _logger.info("RoutEvent ${event.route.title} -> ${event.route.urlPattern.pattern}");

    // optional
    router.onError.listen((final RouteErrorEvent event) {
        _logger.info("RouteErrorEvent ${event.exception}");

    router.listen(); // Start listening

void _log(final String logMessage) {
    final logElement = dom.querySelector("#log") as dom.UListElement;
    logElement.append(new dom.LIElement()..text = logMessage);

void _showImage(final String url) {
    final img = dom.querySelector("img") as dom.ImageElement;
    img.src = url;


Route is built around UrlPattern a class that matches, parses and produces URLs. A UrlPattern is similar to a regex, but constrained so that it is reversible, given a UrlPattern and a set of arguments you can produce the URL that when parsed returns those same arguments. This is important for keeping the URL space for your app flexible so that you can change a URL for a resource in one place and keep your app working.

Route lets you use the same URL patterns for client-side and server-side routing. Just define a library containing all your URLs.

As an example, consider a blog with a home page and an article page. The article URL has the form /article/1234. We want to show articles without reloading the page.


On the browser, there is a Router class that associates UrlPatterns to handlers. Given a URL, the router finds a pattern that matches, and invokes its handler. The handlers are then responsible for rendering the appropriate changes to the page.

Change Log for m4d_router

A browser routing library for Dart



  • Added onError to onEnterCallback 44bb914


  • build.jenkins uses the right deploy-samples-script 1f877bc


  • Link to autogenerated example b105179

v0.2 - 2018-06-27


  • deploy-sample.sh failed on Linux 3a9c29e
  • deploy-sample.sh failed on Linux 456927c
  • Jenkins could not find 'deploy-sample'-script - (plural) 63c4187
  • Jenkins could not find 'deploy-samples'-script - extension missing 2dc1317
  • In Dart 2.x List converts to JSArray, changed List to generic List<String> aaca0d7



This CHANGELOG.md was generated with Changelog for Dart

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  m4d_router: ^0.2.18

2. Install it

You can install packages from the command line:

with pub:

$ pub get

Alternatively, your editor might support pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:m4d_router/browser.dart';
import 'package:m4d_router/exceptions.dart';
import 'package:m4d_router/exeptions/RouteNotFoundException.dart';
import 'package:m4d_router/route.dart';
import 'package:m4d_router/router.dart';
import 'package:m4d_router/url_pattern.dart';
import 'package:m4d_router/utils/async_utils.dart';
import 'package:m4d_router/utils/map_utils.dart';
Version Uploaded Documentation Archive
0.2.18 Nov 21, 2018 Go to the documentation of m4d_router 0.2.18 Download m4d_router 0.2.18 archive
0.2.14 Sep 19, 2018 Go to the documentation of m4d_router 0.2.14 Download m4d_router 0.2.14 archive
0.2.5 Jun 29, 2018 Go to the documentation of m4d_router 0.2.5 Download m4d_router 0.2.5 archive
0.2.0 Jun 27, 2018 Go to the documentation of m4d_router 0.2.0 Download m4d_router 0.2.0 archive
0.1.10 Jun 26, 2018 Go to the documentation of m4d_router 0.1.10 Download m4d_router 0.1.10 archive
0.1.6 Jun 25, 2018 Go to the documentation of m4d_router 0.1.6 Download m4d_router 0.1.6 archive
0.1.2 Jun 25, 2018 Go to the documentation of m4d_router 0.1.2 Download m4d_router 0.1.2 archive
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Learn more about scoring.

We analyzed this package on Jan 15, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.1.0
  • pana: 0.12.10


Detected platforms: web

Platform components identified in package: html.

Health suggestions

Format lib/browser.dart.

Run dartfmt to format lib/browser.dart.

Format lib/exceptions.dart.

Run dartfmt to format lib/exceptions.dart.

Format lib/exeptions/RouteNotFoundException.dart.

Run dartfmt to format lib/exeptions/RouteNotFoundException.dart.

Fix additional 5 files with analysis or formatting issues.

Additional issues in the following files:

  • lib/route.dart (Run dartfmt to format lib/route.dart.)
  • lib/router.dart (Run dartfmt to format lib/router.dart.)
  • lib/url_pattern.dart (Run dartfmt to format lib/url_pattern.dart.)
  • lib/utils/async_utils.dart (Run dartfmt to format lib/utils/async_utils.dart.)
  • lib/utils/map_utils.dart (Run dartfmt to format lib/utils/map_utils.dart.)

Maintenance suggestions

The description is too short. (-20 points)

Add more detail about the package, what it does and what is its target use case. Try to write at least 60 characters.

Maintain an example.

None of the files in your example/ directory matches a known example patterns. Common file name patterns include: main.dart, example.dart or you could also use m4d_router.dart. Packages with multiple examples should use example/readme.md.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0 <3.0.0
logging >=0.11.3 <1.0.0 0.11.3+2
uri ^0.11.0 0.11.3+1
validate ^1.0.0 1.7.0
Transitive dependencies
matcher 0.12.4
meta 1.1.7
quiver 2.0.1
stack_trace 1.9.3
utf 0.9.0+5
Dev dependencies
build_runner any
build_test any
build_web_compilers any
console_log_handler ^1.0.0
mockito any
path ^1.6.0 1.6.2
test any