{
    "items": [
      {
        "sku": "pizza.margherita",
        "name": "Margherita Pizza",
        "category": "pizza",
        "options": {
          "size": { "required": true, "choices": ["small", "medium", "large"] },
          "crust": { "required": false, "choices": ["thin", "regular"] },
          "toppings": { "required": false, "choices": ["extra cheese", "basil", "olives"], "multi": true }
        },
        "price": { "small": 9.0, "medium": 12.0, "large": 14.0 },
        "stock": { "small": 10, "medium": 6, "large": 0 }, 
        "tags": ["vegetarian"]
      },
      {
        "sku": "pizza.pepperoni",
        "name": "Pepperoni Pizza",
        "category": "pizza",
        "options": {
          "size": { "required": true, "choices": ["small", "medium", "large"] },
          "crust": { "required": false, "choices": ["thin", "regular"] },
          "toppings": { "required": false, "choices": ["extra cheese", "jalapeno"], "multi": true }
        },
        "price": { "small": 10.0, "medium": 13.5, "large": 15.5 },
        "stock": { "small": 3, "medium": 0, "large": 2 },
        "tags": []
      },
      {
        "sku": "salad.house",
        "name": "House Salad",
        "category": "salad",
        "options": {
          "dressing": { "required": false, "choices": ["vinaigrette", "ranch", "no dressing"] }
        },
        "price": { "one_size": 7.5 },
        "stock": { "one_size": 15 },
        "tags": ["vegetarian", "vegan"]
      },
      {
        "sku": "drink.cola",
        "name": "Cola",
        "category": "drink",
        "options": {
          "size": { "required": true, "choices": ["can", "bottle"] }
        },
        "price": { "can": 2.0, "bottle": 3.5 },
        "stock": { "can": 20, "bottle": 4 },
        "tags": []
      }
    ],
    "schema": {
      "pizza": { "required_fields": ["size", "qty"], "optional_fields": ["crust", "toppings"] },
      "salad": { "required_fields": ["qty"], "optional_fields": ["dressing"] },
      "drink": { "required_fields": ["size", "qty"], "optional_fields": [] }
    }
  }