# ProductSortKey

The set of valid sort keys for product listings. Use this enum to specify how products should be ordered in search results and product collections.

## Enum Definition

```graphql
enum ProductSortKey {
  TITLE
  PRICE
  CREATED
  UPDATED
  RATING
  MODEL_NUMBER
  BEST_SELLING
  LAST_SOLD
}
```

## Values

| Value | Description |
|-------|-------------|
| TITLE | Sort products alphabetically by title |
| PRICE | Sort products by price |
| CREATED | Sort products by creation date |
| UPDATED | Sort products by last update date |
| RATING | Sort products by customer rating |
| MODEL_NUMBER | Sort products by model number |
| BEST_SELLING | Sort products by sales volume |
| LAST_SOLD | Sort products by most recent sale |

## Example

```graphql
query {
  products(first: 10, sortKey: BEST_SELLING) {
    edges {
      node {
        id
        title
        price
        rating
      }
    }
  }
}
```

## Related Types

- `ProductConnection`
- `ProductEdge`
- `Product`