Problems with passing state parameters in AngularJS UI-Router

I recently set up my configuration file in a simple way

    $stateProvider
        .state('app', {
          'url': '/app',
          'abstract': true,
          'templateUrl': 'views/layout/index.html',
          'controller': 'App'
        })

        .state('app.home', {
          'url': '/home',
          'views': {
            'appContent': {
              'templateUrl': 'views/home/index.html',
              'controller': 'Home'
            }
          }
        });
        .state('app.asd', {
          'url': '/asd/:idContact?',
          'views': {
            'appContent': {
              'templateUrl': 'views/asd/index.html',
              'controller': 'Asd'
            }
          }
        });
$urlRouterProvider.otherwise('/app/home');

If I visit app/asd/7 everything works fine but if I try app/asd it redirects me

Now, I am trying to figure out how to make the idContact parameter not required. I attempted using the classic $routeProvider syntax for this issue :(

Answer №1

Consider using:

/abc/{contactId:/?.*}

It seems that this is the workaround for creating optional parameters in ui router. It's worth noting that there may have been updates to ui router that include native support for optional parameters.

Answer №2

Providing an example addressing the issue of optional parameters. Check out the functionality in this live demo.

If you need more details, refer to this question and answer:

  • Handling optional parameters in AngularJS ui-router

Take a look at the code snippet below showcasing the definition of two states:

.state('view', {
    url: '/view/:inboxId',
    templateUrl: 'tpl.view.html',
    controller: 'viewCtrl'
}).

state('view_root', {
    url: '/view',
    templateUrl: 'tpl.view.html',
    controller: 'viewCtrl'
})

Additionally, here are various ways to create links using either href or ui-sref to access these states:

// Using href
<a href="#/view/1">/view/1</a> - id parameter is passed<br />
<a href="#/view/"> /view/ </a> - id parameter is missing (optional)<br />
<a href="#/view">  /view  </a> - url matching the view_root state

// Using ui-sref
<a ui-sref="view({inboxId:2})">    - id parameter is passed<br /> 
<a ui-sref="view">                 - id parameter is missing (optional)<br />
<a ui-sref="view({inboxId:null})"> - id explicitly set to NULL <br />
<a ui-sref="view_root()">          - url matching the view_root state

This demonstrates that passing certain parameters is not required as long as the correct URL structure is used (including trailing /)

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