Using AngularJS translation capabilities with UI Router

I am working on an AngularJS application that utilizes the AngularJS Translate library from . The setup includes UI router to maintain the existing URL structure of the website, which has been indexed by Google with various language versions such as www.domain.com/en/us/. Despite having over 30 languages, the website functions as a Single Page Application (SPA).

Here is the Javascript configuration for the app:


        app.run(['$rootScope', '$translate', '$state', function ($rootScope, $translate, $state) {
            // Code snippet here...
        }]);

        app.config(['$translateProvider', function ($translateProvider) {
            // Code snippet here...
        }]);

        app.config(['$stateProvider', '$locationProvider', function ($stateProvider, $locationProvider) {
            // Code snippet here...
        }]);

The controller includes the following functions:


        app.controller("SudokuController", ['$scope', 'Chronicle', '$timeout', '$cookies', '$translate', '$state', '$stateParams', function ($scope, Chronicle, $timeout, $cookies, $translate, $state, $stateParams) {
            // Code snippet here...
        }]);

Here is the HTML generating the navigation menu for multiple languages:


        <!-- HTML code snippet here... -->

While I have successfully added the chosen language to the URL (e.g., www.domain.com/en), navigating directly to this URL results in a 404 error. Hence, my queries are:

  • How can I ensure seamless access to the website when the language-specific URL is entered?

    Is there a way to structure the language states like www.domain.com/en/us instead of www.domain.com/en?

    Can these language-based URLs be effectively crawled and indexed by Google?

javascriptangularjsangular-ui-routertranslationangular-translate

Answer №1

  1. Could you share how your server code is set up? It seems like it might only be serving the index page on "/". This would explain why refreshing on any other route leads to a "not found" error. For single-page apps, routing should be handled on the client-side since that's where the app context resides. Ensure your server serves the index page for all routes, allowing ui router to take over smoothly.
  2. To include /en/us, update your state configuration. Also, unless a default value is necessary, there's no need to define params.
$stateProvider.state('catalog', {
    url: '/{lang}/{region}',
    controller: "SudokuController"
});
  1. Google's crawlers may be able to navigate a single-page app like yours, but many others cannot. If SEO is important to you, additional steps are required. Consider these options:
    1. Invest in a service like . By adding some code to your server, this service can make your site crawlable. I've used them before and can vouch for their effectiveness. Essentially, instead of serving the single-page app to a crawler, prerender provides a pre-rendered static version for better understanding.
    2. The alternative, server-side rendering, is more complex. While achievable (especially with newer versions of Angular), it involves a lot of effort and potential complications. Your server dynamically generates a rendered version of the page. For AngularJS, research thoroughly on prerendering and server-side rendering for best practices and insights.

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