diff --git a/modules/rest_example/src/Controller/RestExampleClientController.php b/modules/rest_example/src/Controller/RestExampleClientController.php
index 195542415322cdc8eb01ca92cb68e3a62a0d45e0..2bc9ea1d64e5cbb2ae1a6f209035a72b652ef1d7 100644
--- a/modules/rest_example/src/Controller/RestExampleClientController.php
+++ b/modules/rest_example/src/Controller/RestExampleClientController.php
@@ -2,46 +2,69 @@
 
 namespace Drupal\rest_example\Controller;
 
-use Drupal\Core\Controller\ControllerBase;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
 use Drupal\Core\Link;
+use Drupal\Core\Messenger\MessengerTrait;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Drupal\rest_example\RestExampleClientCalls;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
- * Controller routines for rest example routes.
+ * Controller class for the REST Example routes.
  *
  * @ingroup rest_example
  */
-class RestExampleClientController extends ControllerBase {
+class RestExampleClientController implements ContainerInjectionInterface {
+
+  use MessengerTrait;
+  use StringTranslationTrait;
+
+  /**
+   * The config factory.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+  */
+  protected $configFactory;
 
   /**
-   * RestExampleClientCalls object.
+   * The service to make REST calls.
    *
    * @var \Drupal\rest_example\RestExampleClientCalls
    */
-  private $restExampleClientCalls;
+  protected $restClient;
 
   /**
-   * RestExampleClientController constructor.
+   * Constructs a new \Drupal\rest_example\Controller\RestExampleClientController object.
    *
-   * @param \Drupal\rest_example\RestExampleClientCalls $rest_example_client_calls
-   *   RestExampleClientCalls service.
+   * @param \Drupal\rest_example\RestExampleClientCalls $rest_client
+   *   The service to make REST calls.
    */
-  public function __construct(RestExampleClientCalls $rest_example_client_calls) {
-    $this->restExampleClientCalls = $rest_example_client_calls;
+  public function __construct(
+    ConfigFactoryInterface $config_factory,
+    RestExampleClientCalls $rest_client,
+  ) {
+    $this->configFactory = $config_factory;
+    $this->restClient = $rest_client;
   }
 
   /**
    * {@inheritdoc}
    */
   public static function create(ContainerInterface $container) {
-    return new static(
+    $controller = new static(
+      $container->get('config.factory'),
       $container->get('rest_example_client_calls')
     );
+
+    $controller->setMessenger($container->get('messenger'));
+    $controller->setStringTranslation($container->get('string_translation'));
+
+    return $controller;
   }
 
   /**
-   * Retrieve a list of all nodes available on the remote site.
+   * Retrieves the list of all nodes available on the remote site.
    *
    * Building the list as a table by calling the RestExampleClientCalls::index()
    * and builds the list from the response of that.
@@ -50,14 +73,6 @@ public static function create(ContainerInterface $container) {
    * @throws \GuzzleHttp\Exception\GuzzleException
    */
   public function indexAction() {
-
-    if (NULL === $this->configFactory->get('rest_example.settings')->get('server_url')) {
-      $this->messenger()->addWarning($this->t('The remote endpoint service address have not been set. Please go and provide the credentials and the endpoint address on the <a href="@url">config page</a>.', ['@url' => base_path() . 'examples/rest-client-settings']));
-    }
-    $build = [];
-
-    $nodes = $this->restExampleClientCalls->index();
-
     $build['intro'] = [
       '#markup' => $this->t('This is a list of nodes, of type <em>Rest Example Test</em>, on the remote server. From here you can create new node, edit and delete existing ones.'),
     ];
@@ -71,17 +86,27 @@ public function indexAction() {
         $this->t('Edit'),
         $this->t('Delete'),
       ],
-      '#empty' => t('There are no items on the remote system yet'),
+      '#empty' => $this->t('There are no items on the remote system yet'),
     ];
 
-    if (!empty($nodes)) {
-      foreach ($nodes as $delta => $node) {
-        $build['node_table'][$delta]['title']['#plain_text'] = $node['title'];
-        $build['node_table'][$delta]['type']['#plain_text'] = $node['type'];
-        $build['node_table'][$delta]['created']['#plain_text'] = $node['created'];
-        $build['node_table'][$delta]['edit']['#plain_text'] = Link::createFromRoute($this->t('Edit'), 'rest_example.client_actions_edit', ['id' => $node['nid']])->toString();
-        $build['node_table'][$delta]['delete']['#plain_tex'] = Link::createFromRoute($this->t('Delete'), 'rest_example.client_actions_delete', ['id' => $node['nid']])->toString();
+    if ($this->configFactory->get('rest_example.settings')->get('server_url')) {
+      $this->messenger()->addWarning(
+        $this->t('The remote endpoint service address has not been set. Please go and provide the credentials and the endpoint address on the <a href="@url">config page</a>.', ['@url' => base_path() . 'examples/rest-client-settings'])
+      );
+    }
+    else {
+      $nodes = $this->restClient->index();
+
+      if (!empty($nodes)) {
+        foreach ($nodes as $delta => $node) {
+          $build['node_table'][$delta]['title']['#plain_text'] = $node['title'];
+          $build['node_table'][$delta]['type']['#plain_text'] = $node['type'];
+          $build['node_table'][$delta]['created']['#plain_text'] = $node['created'];
+          $build['node_table'][$delta]['edit']['#plain_text'] = Link::createFromRoute($this->t('Edit'), 'rest_example.client_actions_edit', ['id' => $node['nid']])->toString();
+          $build['node_table'][$delta]['delete']['#plain_tex'] = Link::createFromRoute($this->t('Delete'), 'rest_example.client_actions_delete', ['id' => $node['nid']])->toString();
+        }
       }
+
     }
 
     return $build;
diff --git a/modules/rest_example/src/RestExampleClientCalls.php b/modules/rest_example/src/RestExampleClientCalls.php
index d978884eda7663ce2a42dd78726487a6ba08c024..cba3e65af1aaab42892db68e64ae85a36fc0b762 100644
--- a/modules/rest_example/src/RestExampleClientCalls.php
+++ b/modules/rest_example/src/RestExampleClientCalls.php
@@ -59,7 +59,7 @@ class RestExampleClientCalls {
    * @param \GuzzleHttp\ClientInterface $client
    *   The HTTP client.
    * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
-   *   The Config Factory.
+   *   The config factory.
    */
   public function __construct(ClientInterface $client, ConfigFactoryInterface $config_factory) {
     $this->client = $client;