fixed provider and middleware

app/Http/Middleware/KeyValidation.php

@@ -6,8 +6,16 @@ use Closure;
 use Cookie;
 use App\Models\Key;
 
+//use KeyServiceProvider;
+
 class KeyValidation
 {
+    protected $key;
+
+    public function __construct(Key $key){
+        $this->key = $key;
+    }
+
     /**
      * Handle an incoming request.
      *
@@ -15,19 +23,24 @@ class KeyValidation
      * @param  \Closure  $next
      * @return mixed
      */
-    public function handle($request, Closure $next, Key $key)
+    public function handle($request, Closure $next)
     {   
-        if(isset($key) && $key->getStatus()) {
-            return $next($request);
-        } elseif(isset($key) && !$key->getStatus()) {
+        //dd($this->key->key, $this->key->getStatus());
+        if($this->key->key !== '' && $this->key->getStatus()) {
+            return response('valid key');
+            //return $next($request);
+        } elseif($this->key->key !== '' && !$this->key->getStatus()) {
             if($request->filled('key')){
-                return redirect($request->except('key'));
+                return response('invalid key (parameter)');
+                //return redirect($request->except('key'));
             } else {
                 Cookie::queue('key', '', 0, '/', null, false, false);
-                return redirect($request);
+                return response('invalid key (cookie)');
+                //return redirect($request);
             }
         } else {
-            return redirect($request);
+            return response('no key');
+            //return redirect($request);
         }
     }
 }

app/Providers/KeyServiceProvider.php

@@ -5,6 +5,7 @@ namespace App\Providers;
 use Illuminate\Support\ServiceProvider;
 use Request;
 use Cookie;
+use App\Models\Key;
 
 class KeyServiceProvider extends ServiceProvider
 {
@@ -16,11 +17,11 @@ class KeyServiceProvider extends ServiceProvider
     public function register()
     {
         $key = "";
-        if(Cookie::get('key')) {
+        if(Cookie::has('key')) {
             $key = Cookie::get('key');
         }
-        if(isset($request->key)) {
-            $key = $request->key;
+        if(Request::filled('key')) {
+            $key = Request::input('key');
         }
         $this->app->singleton(Key::class, function ($app) use ($key) {
             return new Key($key);