Laravel 5.5中为响应请求提供的可响应接口详解

use Illuminate\Contracts\Support\Responsable;

class ExampleObject implements Responsable
{
 public function __construct($name = null)
 {
  $this->name = $name ?? 'Teapot'; 
 }

 public function status()
 {
  switch(strtolower($this->name)) {
   case 'teapot':
    return 418;
   default:
    return 200;
  }
 }

 public function toResponse()
 {
  return response(
   "Hello {$this->name}",
   $this->status(),
   ['X-Person' => $this->name]
  );
 }
}

Route::get('/hello', function() {
 return new ExampleObject(request('name'));
});

if ($response instanceof Responsable) {
 $response = $response->toResponse();
}

posts = $posts;
 }

 public function toResponse()
 {
  return response()->json($this->transformPosts());
 }

 protected function transformPosts()
 {
  return $this->posts->map(function ($post) {
   return [
    'title' => $post->title,
    'description' => $post->description,
    'body' => $post->body,
    'published_date' => $post->published_at->toIso8601String(),
    'created' => $post->created_at->toIso8601String(),
   ];
  });
 }
}