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## Resource: Supported Filters

## Article: Supported Filters

## Article Link: https://dev.wix.com/docs/api-reference/business-solutions/bookings/services/add-ons/supported-filters.md

## Article Content:

# Add-Ons: Filtering and Sorting

This article covers field support for filtering in [Query Add Ons](https://dev.wix.com/docs/rest/business-solutions/bookings/services/add-ons/query-add-ons.md).

## Filtering

Specify the `filter` object in the following format:

```json
{
  "filter": {
    "fieldName": {
      "$eq": "value"
    }
  }
}
```

The following table shows field support for filters and sorting
for the `addOn` object:

| Field                  | Supported Filters                                         | Sortable |
|------------------------|-----------------------------------------------------------|----------|
| `id`                   | `$eq`, `$ne`, `$exists`, `$in`, `$startsWith`             | Sortable |
| `name`                 | `$eq`, `$ne`, `$exists`, `$in`, `$startsWith`             | Sortable |
| `price.value`          | `$eq`, `$ne`, `$exists`, `$in`, `$gt`, `$gte`, `$lt`, `$lte` | Sortable |
| `price.currency`       | `$eq`, `$ne`, `$exists`, `$in`                            | Sortable |
| `price.formattedValue`| `$eq`, `$ne`, `$exists`, `$in`, `$startsWith`             | Sortable |
| `durationInMinutes`  | `$eq`, `$ne`, `$exists`, `$in`, `$gt`, `$gte`, `$lt`, `$lte` | Sortable |
| `taxGroup`            | `$eq`, `$ne`, `$exists`, `$in`, `$startsWith`             | Sortable |
| `maxQuantity`         | `$eq`, `$ne`, `$exists`, `$in`, `$gt`, `$gte`, `$lt`, `$lte` | Sortable |

## Sorting

The default sort is by `id` in ascending (ASC) order.

Specify the `sort` object in the following format:

```json
{
  "sort": [
    {
      "fieldName": "sortOrder",
      "order": "ASC"
    },
    {
      "fieldName": "createdDate",
      "order": "DESC"
    }
  ]
}
```

## See also

- [API Query Language](https://dev.wix.com/docs/api-reference/articles/work-with-wix-apis/data-retrieval/about-the-wix-api-query-language.md)