Laravel 5.6 - Pass additional parameters to API Resource?

Question

A Laravel API Resource can be either a single resource or a collection. In some cases, additional parameters are required to be passed to the resource/collection from the co

Answer 1

To works with Laravel 5.7, I made some changes in relation to Wonka's answer

UserResource

    class UserResource extends Resource{

        protected $foo;

        public function foo($value){
            $this->foo = $value;
            return $this;
        }

        public function toArray($request){
            return [
                'id' => $this->id,
                'name' => $this->name,
                'foo' => $this->foo,
             ];
        }

        public static function collection($resource){
            return new UserResourceCollection($resource, get_called_class());
        }
    }

UserCollection

    class UserResourceCollection extends AnonymousResourceCollection {

        protected $foo;

        public function foo($value){
            $this->foo = $value;
            return $this;
        }

        public function toArray($request){
            return $this->collection->map(function(UserResource $resource) use($request){
                return $resource->foo($this->foo)->toArray($request);
        })->all();

        }
    }