Create ArticlesController.php

app/Http/Controllers/ArticlesController.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Article;
+use App\Http\Resources\ArticleResource;
+
+class ArticlesController extends Controller
+{
+    public function show(Article $article) : ArticleResource
+    {
+        return new ArticleResource($article);
+    }
+}