Tips for creating a default route with parameters in Angular Component Router?

I am trying to set a default route in my sub-component (using useAsDefault: true) and have parameters automatically passed to it, but I can't seem to find any information on how to accomplish this in the documentation. I have a parent component with the following route:

$routeConfig = [
    { path: '/employees/...', component: 'employeesComponent', name: 'Employees'}
]

and a child component with:

$routeConfig = [
    { path: '/:group/:filter', component: 'employeeListComponent', name: 'Group', useAsDefault: true}
    { path: '/details/:employeeId/...', component: 'profileComponent', name: 'EmployeeProfile'}
]

This configuration results in the error: 

Route generator for 'group' was not included in parameters passed.
I haven't been able to figure out how to pass default parameters to the first route. My current workaround involves creating another route without params and using it as a default:

{ path: '/all', component: 'employeeListComponent', name: 'All', useAsDefault: true}

but this solution is less than ideal. I've considered redirecting immediately with some default parameters after navigating to a route without params, but I'm hoping there's a better way to handle this issue. Any suggestions?

angulartypescriptangular2-routing

Answer №1

After encountering a challenge, I found a solution by incorporating a default route and implementing a redirect within the $routerOnActivate function.

public $routeConfig = [
    { path: '/', component: 'employeeListComponent', name: 'GroupRedirect', useAsDefault: true},    
    { path: '/:group/:filter', component: 'employeeListComponent', name: 'Group'}
    { path: '/details/:employeeId/...', component: 'profileComponent', name: 'EmployeeProfile'},
]

Subsequently, in the controller:

public $routerOnReuse(route) {
  if (!route.params.group) {
    this.$router.navigate(['Group', { group: 'status', filter: 'active' }]);
  }
}

Answer №2

From my understanding, it seems that this feature is not currently supported. One workaround could be to have a route with and without the parameter and then in the component GroupDefault, simply navigate to Group.

$routeConfig = [
    { path: '/group', component: 'employeeListComponentDefault', name: 'GroupDefault', useAsDefault: true}

    { path: '/:group/:filter', component: 'employeeListComponent', name: 'Group'},
    { path: '/details/:employeeId/...', component: 'profileComponent', name: 'EmployeeProfile'}
]

You may also find more information here:

  • Optional Parameters While Routing angular2
  • Angular 2 optional route parameter

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