I created a post request (localhost:4000/api/students/)

Headers:
‘Accept: application/vnd.api+json’
‘Content-Type: application/vnd.api+json’

Body:

{
  "data": {
    "type": "student",
    "attributes": {
      "first_name": "some name",
      "last_name": "last name"
    }
  }
}

I got an error InvalidBody

{
    "errors": [
        {
            "code": "invalid_body",
            "id": "a174c29e-5ffe-4cf4-b4a4-97a67f6e65aa",
            "meta": {},
            "status": "400",
            "title": "InvalidBody",
            "source": {
                "pointer": "data/attributes/last_name"
            },
            "detail": "Expected only defined properties, got key [\"data\", \"attributes\", \"last_name\"]."
        },
        {
            "code": "invalid_body",
            "id": "a6408d19-4271-4753-b86a-134fd009af93",
            "meta": {},
            "status": "400",
            "title": "InvalidBody",
            "source": {
                "pointer": "data/attributes/first_name"
            },
            "detail": "Expected only defined properties, got key [\"data\", \"attributes\", \"first_name\"]."
        }
    ],
    "jsonapi": {
        "version": "1.0"
    }
}