在laravel api中对关系资源进行分页

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
    public function comments()
    {
        return $this->hasMany(Comment::class);
    }
}

<?php

namespace App\Http\Resources;

use Illuminate\Http\Resources\Json\JsonResource;

class PostResource extends JsonResource
{
    public function toArray($request)
    {
        return [
            'id' => $this->id,
            'title' => $this->title,
            'comments' => CommentResource::collection($this->whenLoaded('comments')),
        ];
    }
}

<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Http\Resources\PostResource;
use App\Models\Post;

class PostController extends Controller
{
    public function index()
    {
        $posts = Post::with('comments')->paginate(10);

        return PostResource::collection($posts);
    }
}

Route::get('/posts', 'Api\PostController@index');