Created middleware that checks authentication

config/autoload/middleware-pipeline.global.php

@@ -23,6 +23,7 @@ return [
         'rest' => [
             'path' => '/rest',
             'middleware' => [
+                Middleware\CheckAuthenticationMiddleware::class,
                 Middleware\CrossDomainMiddleware::class,
             ],
             'priority' => 5,

config/autoload/services.global.php

@@ -52,6 +52,7 @@ return [
             Middleware\Rest\GetVisitsMiddleware::class => AnnotatedFactory::class,
             Middleware\Rest\ListShortcodesMiddleware::class => AnnotatedFactory::class,
             Middleware\CrossDomainMiddleware::class => InvokableFactory::class,
+            Middleware\CheckAuthenticationMiddleware::class => AnnotatedFactory::class,
         ],
         'aliases' => [
             'em' => EntityManager::class,