Project Summary

In this project, we'll implement routing and $http requests into an Angular application. You'll notice that the js/ folder has another level of folders inside of it. The Angular community has found that the best way to organize your files, so your project can scale, is to break out your code into "features". Therefore, you'll find all the HTML and JS for each feature in its matching folder. Take a minute to get familiar with the file structure.

Live Example:

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Setup

Fork and clone this repository.
cd into the project directory.
Run npm install.
After npm install, run npm run dev.
Take a minute to familiarize yourself with the file structure.

Step 1

Summary

In this step, we'll create a container where the routing HTML will live. We'll also add some static HTML for navigating between routes.

Instructions

Open index.html.
Above your script tags in the body, create a new div with a class of menu.
- Inside of menu add a ul element with three li elements:
- Each li element should contain an a element with a ui-sref attribute that equals the name of the feature.
- The li for the "products" feature should have a nested ul element with an li for Shoes and Socks.
  - The ui-sref attribute on these li elements should use an object with an id property that equals Shoes or Socks.
Under the div with a class of menu add a new div with a class of view-container.
- Inside of view-container add a div element with an attribute ui-view that doesn't equal anything

Solution

index.html

<!DOCTYPE html>
<html ng-app="myApp">
  <head>
    <title>Routing App</title>
    <link type="text/css" rel="stylesheet" href="styles.css" />
  </head>

  <body>
    <div class="menu">
      <ul>
        <li><a ui-sref="home">Home</a></li>
        <li>
          Products
          <ul>
            <li><a ui-sref="products({id: 'shoes'})">Shoes</a></li>
            <li><a ui-sref="products({id: 'socks'})">Socks</a></li>
          </ul>
        </li>
        <li><a ui-sref="settings"> Settings </a></li>
      </ul>
    </div>

    <div class="view-container">
      <div ui-view></div>
    </div>

    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.6/angular.min.js"></script>
    <script type="text/javascript" src="js/app.js"></script>
  </body>
</html>

Step 2

Summary

In this step, we'll inject ui.router into our Angular application and define the available routes. We'll also have to add ui.router's CDN into our index.html.

Instructions

Open index.html.
Add a new script tag for the ui.router CDN just below the Angular CDN:
- https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/1.0.3/angular-ui-router.js
Open js/app.js.
Inject ui.router into myApp.
Chain a .config to myApp that uses an anonymous function.
- Just like you would for a controller or service.
Inject $stateProvider and $urlRouterProvider into the anonymous function.
Call $stateProvider and chain a .state for each feature route ( hint: there should only be three ).
- .state should be invoked and have two parameters:
  - The first parameter is the string of the route. This must match the strings used in the previous step.
    - Hint: ui-sref.
  - The second parameter is an object that has three properties:
    - url: A string that specifies the route
    - templateUrl: A string that is a file path to the HTML.
    - controller: A string that specifies what controller the HTML should use.
      - Only use controller for the features that have a controller.
Call $urlRouterProvider and chain a .otherwise and pass in '/'.

Solution

js/app.js

angular.module('myApp', ['ui.router']).config( function( $stateProvider, $urlRouterProvider ) {
  $stateProvider
    .state('home', {
      url: '/',
      templateUrl: 'js/home/homeTmpl.html'
    })
    .state('products', {
      url: '/products/:id',
      templateUrl: 'js/products/productsTmpl.html',
      controller: 'productsCtrl'
    })
    .state('settings', {
      url: '/settings',
      templateUrl: 'js/settings/settingsTmpl.html'
    });

  $urlRouterProvider
    .otherwise('/');
});

Step 3

Summary

In this step, we'll update the productsSrvc.js to hit an API to get an array of products.

Instructions

Open js/products/productsSrvc.js.
Inject $http into the service.
Create a method on the service called getShoeData:
- This method should return a promise of a $http GET request:
  - The base url of this request should be: https://practiceapi.devmountain.com/products.
  - A category query should be added to the URL with a value of shoes.
Create a method on the service called getSockData:
- This method should return a promise of a $http GET request:
  - The base url of this request should be: https://practiceapi.devmountain.com/products.
  - A category query should be added to the URL with a value of socks.

Solution

js/products/productsSrvc.js

angular.module('myApp').service('productsSrvc', function( $http ) {
  this.getShoeData = function() {
    return $http({
      method: 'GET',
      url: 'https://practiceapi.devmountain.com/products?category=shoes'
    });
  };

  this.getSockData = function() {
    return $http({
      method: 'GET',
      url: 'https://practiceapi.devmountain.com/products?category=socks'
    });
  };
});

Step 4

Summary

In this step, we'll modify the "products" feature to display data based on what page the user is on.

Instructions

Open js/products/productsCtrl.js.
Create a new Angular controller called productsCtrl:
- Inject $scope, $stateParams, and productsSrvc.
Add a new conditional to see if id on $stateParams is either 'shoes' or 'socks'.
- If it is 'shoes', call the getShoeData method on the productsSrvc:
  - Catch the response's data of this request and assign it to a $scope variable called productData.
- If it is 'socks', call the getSockData method on the productsSrvc:
  - Catch the response's data of this request and assign it to a $scope variable called productData.
Open js/products/productsTmpl.html.
Add a new div element that uses ng-repeat on $scope.productData.
- Add three p elements inside the div to show the value of type, color, and size.
Open index.html.
- Include new script tags for the productsCtrl and productsSrvc javascript files.

Solution

js/products/productsCtrl.js

angular.module('myApp').controller('productsCtrl', function( $scope, $stateParams, productsSrvc ) {

  if ( $stateParams.id === 'shoes' ) {
    productsSrvc.getShoeData().then( function( response ) {
      $scope.productData = response.data;
    });
  } else if ( $stateParams.id === 'socks' ) {
    productsSrvc.getSockData().then( function( response ) {
      $scope.productData = response.data;
    });
  }

});

js/products/productsTmpl.html

<h1> Product Page </h1>
<div ng-repeat="product in productData">
  <p>Type: {{ product.type }}</p>
  <p>Color: {{ product.color }}</p>
  <p>Size: {{ product.size }}</p>
</div>

index.html

<!DOCTYPE html>
<html ng-app="myApp">
  <head>
    <title>Routing App</title>
    <link type="text/css" rel="stylesheet" href="styles.css" />
  </head>

  <body>
    <div class="menu">
      <ul>
        <li><a ui-sref="home">Home</a></li>
        <li>
          Products
          <ul>
            <li><a ui-sref="products({id: 'shoes'})">Shoes</a></li>
            <li><a ui-sref="products({id: 'socks'})">Socks</a></li>
          </ul>
        </li>
        <li><a ui-sref="settings"> Settings </a></li>
      </ul>
    </div>

    <div class="view-container">
      <div ui-view></div>
    </div>

    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.6/angular.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/1.0.3/angular-ui-router.js"></script>
    <script type="text/javascript" src="js/app.js"></script>
    <script type="text/javascript" src="js/products/productsCtrl.js"></script>
    <script type="text/javascript" src="js/products/productsSrvc.js"></script>
  </body>
</html>

Contributions

If you see a problem or a typo, please fork, make the necessary changes, and create a pull request so we can review your changes and merge them into the master repo and branch.

Copyright

© DevMountain LLC, 2017. Unauthorized use and/or duplication of this material without express and written permission from DevMountain, LLC is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to DevMountain with appropriate and specific direction to the original content.

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