Relations

{
  "values": {
    "category": "entry_category_1"
  }
}

{
  "values": {
    "relatedProducts": ["entry_1", "entry_2"]
  }
}

{
  "message": "Invalid relation value for field 'category'."
}

?fields=id,name,category

{
  "id": "entry_123",
  "name": {
    "en": "Classic Burger"
  },
  "category": "entry_category_1"
}

?fields=id,name,category(id,name)

{
  "id": "entry_123",
  "name": {
    "en": "Classic Burger"
  },
  "category": {
    "id": "entry_category_1",
    "name": {
      "en": "Burgers"
    }
  }
}

?fields=id,name,category(id,name,parent(id,name))&maxDepth=2

{
  "id": "menu_product_id",
  "name": {
    "en": "Classic Burger"
  }
}