..

app/Http/Middleware/Authenticate.php

@@ -35,6 +35,7 @@ class Authenticate
      */
     public function handle($request, Closure $next, $guard = null)
     {
+        dd($request->header('Authorization'));
         if ($this->auth->guard($guard)->guest()) {
             return response()->json(['message' => "Unauthorized"], 200);
         }