m4d_router 0.1.6

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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.


Installation #

Add this package to your pubspec.yaml file:

  m4d_router: any

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

Sample #

Check out the sample 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;

UrlPattern #

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.

Routing #

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

Unreleased #

Docs #

Test #

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: ^0.1.6

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';
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The package version is not analyzed, because it does not support Dart 2. Until this is resolved, the package will receive a health and maintenance score of 0.

Analysis issues and suggestions

Support Dart 2 in pubspec.yaml.

The SDK constraint in pubspec.yaml doesn't allow the Dart 2.0.0 release. For information about upgrading it to be Dart 2 compatible, please see https://dart.dev/dart-2#migration.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=1.8.0 <2.0.0