在Laravel 5.2中将复杂的模型实例插入数据库

I am creating an API using Laravel 5.2 and I have a model class named Post
when i get a request from client in my PostController i have a JsonObject like this:

{
  "description": "My description is here!",
  "items": [
    {
      "text": "This is the item and the the sort is 0",
      "type": 1,
      "sort": 2
    },
    {
      "type": 2,
      "path": "exmple.com",
      "sort": 3
    }
  ],
  "title": "My title",
  "tags": [
    {
      "name": "Tag number #1"
    },
    {
      "name": "Tag number #2"
    },
    {
      "name": "Tag number #3"
    }
  ],
  "user_id": 1
}

in my PostController

 public function store(Request $request) {
    $jsonObject = json_decode($request->getContent());  // i get jsonObject here
    $post= new Post();
    // what to do here?
  }

Relationships

1. One to One -> User-Post
2. One to Many -> Post-Items
3. Many to Many -> Post-Tags

What i want to do:

save this new post using the received JsonObject with related data

Note: other model classes like Tag and Item are ready to use.