Default, Redirect and Wildcard Routes 5.3
The initial URL in the browser bar after the app launches is something like localhost:8080.
That doesn’t match any of the configured routes, which means that the app won’t display any component when it’s launched. The user must click one of the links to trigger a navigation and component display.
It would be nicer if the app had a default route
that displayed the list of heroes immediately.
One way to achieve this is to add
useAsDefault: true as an argument
Heroes route definition:
static final heroes = RouteDefinition( routePath: RoutePaths.heroes, component: hero_list_template.HeroListComponentNgFactory, useAsDefault: true, );
Refresh the browser and try it. Notice that the heroes list is displayed
when the app launches, but that the URL path is
As an alternative solution, remove the
useAsDefault argument that you just added,
and instead add a redirect route that will translate an initial relative path (
to the desired default path (
static final all = <RouteDefinition>[ // ··· RouteDefinition.redirect( path: '', redirectTo: RoutePaths.heroes.toUrl(), ), // ··· ];
Refresh the browser and try it. Now the browser address bar path is
as if you’d navigated there directly.
While you’ve created routes to
what if the router is given another path?
Add a wildcard route so that all other paths are handled
by a “Not Found” (404) component:
static final all = <RouteDefinition>[ // ··· RouteDefinition( path: '.+', component: not_found_template.NotFoundComponentNgFactory, ), ];
The path regular expression
'.+' matches every non-empty path.
(Exclude the empty path so that it triggers the
useAsDefault route you defined earlier.)
The router will select the wildcard route if it can’t match a route earlier in the routes list.
In this short iteration you’ve tried default, redirect and wildcard routes. Here are the files that were added or edited: