Routing using ngRoute All Versions

Examples

• 6

  Basic example
  6

  This example shows setting up a small application with 3 routes, each with it's own view and controller, using the controllerAs syntax.

  We configure our router at the angular .config function

  1. We inject $routeProvider into .config
  2. We define our route names at the .when method with a route definition object.
  3. We supply the .when method with an object specifying our template or templateUrl, controller and controllerAs

  app.js

  angular.module('myApp', ['ngRoute'])
    .controller('controllerOne', function() {
      this.message = 'Hello world from Controller One!';
    })
    .controller('controllerTwo', function() {
      this.message = 'Hello world from Controller Two!';
    })
    .controller('controllerThree', function() {
      this.message = 'Hello world from Controller Three!';
    })
    .config(function($routeProvider) {
      $routeProvider
      .when('/one', {
        templateUrl: 'view-one.html',
        controller: 'controllerOne',
        controllerAs: 'ctrlOne'
      })
      .when('/two', {
        templateUrl: 'view-two.html',
        controller: 'controllerTwo',
        controllerAs: 'ctrlTwo'
      })
      .when('/three', {
        templateUrl: 'view-three.html',
        controller: 'controllerThree',
        controllerAs: 'ctrlThree'
      })
      // redirect to here if no other routes match
      .otherwise({
        redirectTo: '/one'
      });
    });
  

  Then in our HTML we define our navigation using <a> elements with href, for a route name of helloRoute we will route as <a href="#/helloRoute">My route</a>

  We also provide our view with a container and the directive ng-view to inject our routes.

  index.html

  <div ng-app="myApp">
    <nav>
      <!-- links to switch routes -->
      <a href="#/one">View One</a>
      <a href="#/two">View Two</a>
      <a href="#/three">View Three</a>
    </nav>
    <!-- views will be injected here -->
    <div ng-view></div>
    <!-- templates can live in normal html files -->
    <script type="text/ng-template" id="view-one.html">
      <h1>{{ctrlOne.message}}</h1>
    </script>
  
    <script type="text/ng-template" id="view-two.html">
      <h1>{{ctrlTwo.message}}</h1>
    </script>
  
    <script type="text/ng-template" id="view-three.html">
      <h1>{{ctrlThree.message}}</h1>
    </script>
  </div>
  

  edited Jul 28 '16 at 12:21

  

  

  
  discuss
• 3

  Defining custom behavior for individual routes
  3

  The simplest manner of defining custom behavior for individual routes would be fairly easy.

  In this example we use it to authenticate a user :

  1) routes.js: create a new property (like requireAuth) for any desired route

  angular.module('yourApp').config(['$routeProvider', function($routeProvider) {
      $routeProvider
          .when('/home', {
              templateUrl: 'templates/home.html',
              requireAuth: true
          })
          .when('/login', {
              templateUrl: 'templates/login.html',
          })
          .otherwise({
              redirectTo: '/home'
          });
  }])
  

  2) In a top-tier controller that isn't bound to an element inside the ng-view (to avoid conflict with angular $routeProvider), check if the newUrl has the requireAuth property and act accordingly

  angular.module('YourApp').controller('YourController', ['$scope', 'session', '$location',
      function($scope, session, $location) {
  
          $scope.$on('$routeChangeStart', function(angularEvent, newUrl) {
              
              if (newUrl.requireAuth && !session.user) {
                  // User isn’t authenticated
                  $location.path("/login");
              }
              
          });
      }
  ]);
  

  created Sep 13 '16 at 0:14

  
  discuss
• 2

  Route parameters example
  2

  This example extends the basic example passing parameters in the route in order to use them in the controller

  To do so we need to:

  1. Configure the parameter position and name in the route name
  2. Inject $routeParams service in our Controller

  app.js

  angular.module('myApp', ['ngRoute'])
    .controller('controllerOne', function() {
      this.message = 'Hello world from Controller One!';
    })
    .controller('controllerTwo', function() {
      this.message = 'Hello world from Controller Two!';
    })
    .controller('controllerThree', ['$routeParams', function($routeParams) {
      var routeParam = $routeParams.paramName
  
      if ($routeParams.message) {
          // If a param called 'message' exists, we show it's value as the message
          this.message = $routeParams.message;
      } else {
          // If it doesn't exist, we show a default message
          this.message = 'Hello world from Controller Three!';
      }
    }])
    .config(function($routeProvider) {
      $routeProvider
      .when('/one', {
        templateUrl: 'view-one.html',
        controller: 'controllerOne',
        controllerAs: 'ctrlOne'
      })
      .when('/two', {
        templateUrl: 'view-two.html',
        controller: 'controllerTwo',
        controllerAs: 'ctrlTwo'
      })
      .when('/three', {
        templateUrl: 'view-three.html',
        controller: 'controllerThree',
        controllerAs: 'ctrlThree'
      })
      .when('/three/:message', { // We will pass a param called 'message' with this route
        templateUrl: 'view-three.html',
        controller: 'controllerThree',
        controllerAs: 'ctrlThree'
      })
      // redirect to here if no other routes match
      .otherwise({
        redirectTo: '/one'
      });
    });
  

  Then, withoud making any changes in our templates, only adding a new link with custom message, we can see the new custom message in our view.

  index.html

  <div ng-app="myApp">
    <nav>
      <!-- links to switch routes -->
      <a href="#/one">View One</a>
      <a href="#/two">View Two</a>
      <a href="#/three">View Three</a>
      <!-- New link with custom message -->
      <a href="#/three/This-is-a-message">View Three with "This-is-a-message" custom message</a>
    </nav>
    <!-- views will be injected here -->
    <div ng-view></div>
    <!-- templates can live in normal html files -->
    <script type="text/ng-template" id="view-one.html">
      <h1>{{ctrlOne.message}}</h1>
    </script>
  
    <script type="text/ng-template" id="view-two.html">
      <h1>{{ctrlTwo.message}}</h1>
    </script>
  
    <script type="text/ng-template" id="view-three.html">
      <h1>{{ctrlThree.message}}</h1>
    </script>
  </div>
  

  created Sep 12 '16 at 14:02

  
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