---
displayed_sidebar: jsClientSidebar
slug: /references/js-client/CollectionsResource
---

import ParameterTypes from "@site/src/components/ParameterTypes"

# CollectionsResource

This class is used to send requests to [Store Product Collection API Routes](https://docs.medusajs.com/api/store#product-collections). All its method
are available in the JS Client under the `medusa.collections` property.

A product collection is used to organize products for different purposes such as marketing or discount purposes. For example, you can create a Summer Collection.
Using the methods in this class, you can list or retrieve a collection's details and products.

## Methods

### list

Retrieve a list of product collections. The product collections can be filtered by fields such as `handle` or `created_at` passed in the `query` parameter. 
The product collections can also be paginated.

#### Example

To list product collections:

```ts
import Medusa from "@medusajs/medusa-js"
const medusa = new Medusa({ baseUrl: MEDUSA_BACKEND_URL, maxRetries: 3 })
medusa.collections.list().then(({ collections, limit, offset, count }) => {
  console.log(collections.length)
})
```

By default, only the first `10` records are retrieved. You can control pagination by specifying the `limit` and `offset` properties:

```ts
import Medusa from "@medusajs/medusa-js"
const medusa = new Medusa({ baseUrl: MEDUSA_BACKEND_URL, maxRetries: 3 })
medusa.collections
  .list({
    limit,
    offset,
  })
  .then(({ collections, limit, offset, count }) => {
    console.log(collections.length)
  })
```

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "query",
    "type": "[`StoreGetCollectionsParams`](../internal/classes/internal.StoreGetCollectionsParams.mdx)",
    "description": "Filters and pagination configurations to apply on the retrieved product collections.",
    "optional": true,
    "defaultValue": "",
    "expandable": false,
    "children": [
      {
        "name": "created_at",
        "type": "[`DateComparisonOperator`](../internal/classes/internal.DateComparisonOperator.mdx)",
        "description": "Date filters to apply on the product collections' `created_at` date",
        "optional": true,
        "defaultValue": "",
        "expandable": false,
        "children": [
          {
            "name": "gt",
            "type": "`Date`",
            "description": "The filtered date must be greater than this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "gte",
            "type": "`Date`",
            "description": "The filtered date must be greater than or equal to this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "lt",
            "type": "`Date`",
            "description": "The filtered date must be less than this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "lte",
            "type": "`Date`",
            "description": "The filtered date must be less than or equal to this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          }
        ]
      },
      {
        "name": "handle",
        "type": "`string`[]",
        "description": "Handles to filter product collections by.",
        "optional": true,
        "defaultValue": "",
        "expandable": false,
        "children": []
      },
      {
        "name": "limit",
        "type": "`number`",
        "description": "Limit the number of items returned in the list.",
        "optional": true,
        "defaultValue": "10",
        "expandable": false,
        "children": []
      },
      {
        "name": "offset",
        "type": "`number`",
        "description": "The number of items to skip when retrieving a list.",
        "optional": true,
        "defaultValue": "0",
        "expandable": false,
        "children": []
      },
      {
        "name": "updated_at",
        "type": "[`DateComparisonOperator`](../internal/classes/internal.DateComparisonOperator.mdx)",
        "description": "Date filters to apply on the product collections' `updated_at` date.",
        "optional": true,
        "defaultValue": "",
        "expandable": false,
        "children": [
          {
            "name": "gt",
            "type": "`Date`",
            "description": "The filtered date must be greater than this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "gte",
            "type": "`Date`",
            "description": "The filtered date must be greater than or equal to this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "lt",
            "type": "`Date`",
            "description": "The filtered date must be less than this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "lte",
            "type": "`Date`",
            "description": "The filtered date must be less than or equal to this value.",
            "optional": true,
            "defaultValue": "",
            "expandable": false,
            "children": []
          }
        ]
      }
    ]
  },
  {
    "name": "customHeaders",
    "type": "Record<`string`, `any`\\>",
    "description": "Custom headers to attach to the request.",
    "optional": false,
    "defaultValue": "{}",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

<ParameterTypes parameters={[
  {
    "name": "ResponsePromise",
    "type": "[`ResponsePromise`](../modules/internal.mdx#responsepromise)<[`StoreCollectionsListRes`](../modules/internal.mdx#storecollectionslistres)\\>",
    "optional": false,
    "defaultValue": "",
    "description": "Resolves to the list of product collections with pagination fields.",
    "expandable": false,
    "children": [
      {
        "name": "StoreCollectionsListRes",
        "type": "[`PaginatedResponse`](../internal/interfaces/internal.PaginatedResponse.mdx) & { `collections`: [`ProductCollection`](../internal/classes/internal.ProductCollection.mdx)[]  }",
        "description": "The list of product collections with pagination fields.",
        "optional": false,
        "defaultValue": "",
        "expandable": false,
        "children": [
          {
            "name": "count",
            "type": "`number`",
            "description": "The total number of items available.",
            "optional": false,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "limit",
            "type": "`number`",
            "description": "The maximum number of items that can be returned in the list.",
            "optional": false,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "offset",
            "type": "`number`",
            "description": "The number of items skipped before the returned items in the list.",
            "optional": false,
            "defaultValue": "",
            "expandable": false,
            "children": []
          },
          {
            "name": "collections",
            "type": "[`ProductCollection`](../internal/classes/internal.ProductCollection.mdx)[]",
            "description": "An array of product collections details",
            "optional": false,
            "defaultValue": "",
            "expandable": false,
            "children": [
              {
                "name": "created_at",
                "type": "`Date`",
                "description": "The date with timezone at which the resource was created.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "deleted_at",
                "type": "``null`` \\| `Date`",
                "description": "The date with timezone at which the resource was deleted.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "handle",
                "type": "`string`",
                "description": "A unique string that identifies the Product Collection - can for example be used in slug structures.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "id",
                "type": "`string`",
                "description": "The product collection's ID",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "metadata",
                "type": "Record<`string`, `unknown`\\>",
                "description": "An optional key-value map with additional details",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "products",
                "type": "[`Product`](../internal/classes/internal.Product.mdx)[]",
                "description": "The details of the products that belong to this product collection.",
                "optional": false,
                "defaultValue": "",
                "expandable": true,
                "children": []
              },
              {
                "name": "title",
                "type": "`string`",
                "description": "The title that the Product Collection is identified by.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "updated_at",
                "type": "`Date`",
                "description": "The date with timezone at which the resource was updated.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              }
            ]
          }
        ]
      }
    ]
  }
]} />

___

### retrieve

Retrieve a product collection's details.

#### Example

```ts
import Medusa from "@medusajs/medusa-js"
const medusa = new Medusa({ baseUrl: MEDUSA_BACKEND_URL, maxRetries: 3 })
medusa.collections.retrieve(collectionId).then(({ collection }) => {
  console.log(collection.id)
})
```

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "id",
    "type": "`string`",
    "description": "The ID of the product collection.",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "customHeaders",
    "type": "Record<`string`, `any`\\>",
    "description": "Custom headers to attach to the request.",
    "optional": false,
    "defaultValue": "{}",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

<ParameterTypes parameters={[
  {
    "name": "ResponsePromise",
    "type": "[`ResponsePromise`](../modules/internal.mdx#responsepromise)<[`StoreCollectionsRes`](../modules/internal.mdx#storecollectionsres)\\>",
    "optional": false,
    "defaultValue": "",
    "description": "Resolves to the collection's details.",
    "expandable": false,
    "children": [
      {
        "name": "StoreCollectionsRes",
        "type": "`object`",
        "description": "The details of the product collection.",
        "optional": false,
        "defaultValue": "",
        "expandable": false,
        "children": [
          {
            "name": "collection",
            "type": "[`ProductCollection`](../internal/classes/internal.ProductCollection.mdx)",
            "description": "Product collection details.",
            "optional": false,
            "defaultValue": "",
            "expandable": false,
            "children": [
              {
                "name": "created_at",
                "type": "`Date`",
                "description": "The date with timezone at which the resource was created.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "deleted_at",
                "type": "``null`` \\| `Date`",
                "description": "The date with timezone at which the resource was deleted.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "handle",
                "type": "`string`",
                "description": "A unique string that identifies the Product Collection - can for example be used in slug structures.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "id",
                "type": "`string`",
                "description": "The product collection's ID",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "metadata",
                "type": "Record<`string`, `unknown`\\>",
                "description": "An optional key-value map with additional details",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "products",
                "type": "[`Product`](../internal/classes/internal.Product.mdx)[]",
                "description": "The details of the products that belong to this product collection.",
                "optional": false,
                "defaultValue": "",
                "expandable": true,
                "children": []
              },
              {
                "name": "title",
                "type": "`string`",
                "description": "The title that the Product Collection is identified by.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              },
              {
                "name": "updated_at",
                "type": "`Date`",
                "description": "The date with timezone at which the resource was updated.",
                "optional": false,
                "defaultValue": "",
                "expandable": false,
                "children": []
              }
            ]
          }
        ]
      }
    ]
  }
]} />