> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cocartapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Filters available in the core of CoCart

> These filters let you control how CoCart operates for your store

## `cocart_is_rest_api_request`

Filters the REST API requested.

| Parameter              | Type   | Description                           |
| ---------------------- | ------ | ------------------------------------- |
| `$is_rest_api_request` | `bool` | True if CoCart REST API is requested. |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/class-cocart.php`](https://github.com/co-cart/co-cart/blob/development/includes/class-cocart.php#L602)

***

## `cocart_wp_accessible_page_ids`

Filter controls which pages are accessible when WordPress is denied access. Both the cart and checkout pages are accessible by default.

* **Since**: 5.0.0 Introduced.
* **Returns**: `array Page ID's that are accessible.`

**Defined in**: [`includes/class-cocart.php`](https://github.com/co-cart/co-cart/blob/development/includes/class-cocart.php#L665)

***

## `cocart_register_submenu_page`

Hook to register submenu\_pages class handlers The array element should be 'submenu\_page\_slug' => array( 'class\_name' => array(), 'data' => array() )

| Parameter   | Type    | Description             |
| ----------- | ------- | ----------------------- |
| `$submenus` | `array` | Array of submenu pages. |

* **Since**: 3.10.0 Introduced.

**Defined in**: [`includes/classes/admin/class-cocart-admin-menus.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/admin/class-cocart-admin-menus.php#L95)

***

## `cocart_in_plugin_update_message`

Filter allows you to change the upgrade notice.

* **Since**: 4.3.0 Introduced.

**Defined in**: [`includes/classes/admin/plugin-updates/class-cocart-admin-plugin-screen-update.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/admin/plugin-updates/class-cocart-admin-plugin-screen-update.php#L98)

***

## `cocart_get_plugins_with_header`

Filter allows you to get the plugins that have a valid value for a specific header.

| Parameter  | Type     | Description                           |
| ---------- | -------- | ------------------------------------- |
| `$matches` | `array`  | Array of plugins matched with header. |
| `$header`  | `string` | Plugin header to search for.          |
| `$plugins` | `array`  | Array of plugins installed.           |

* **Since**: 4.3.0 Introduced.

**Defined in**: [`includes/classes/admin/plugin-updates/class-cocart-admin-plugin-updates.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/admin/plugin-updates/class-cocart-admin-plugin-updates.php#L220)

***

## `cocart_get_plugins_for_cocart`

Filter allows you to get plugins which "maybe" are for CoCart.

| Parameter  | Type    | Description                                   |
| ---------- | ------- | --------------------------------------------- |
| `$matches` | `array` | Array of plugins that "maybe" are for CoCart. |
| `$plugins` | `array` | Array of plugins installed.                   |

* **Since**: 4.3.0 Introduced.

**Defined in**: [`includes/classes/admin/plugin-updates/class-cocart-admin-plugin-updates.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/admin/plugin-updates/class-cocart-admin-plugin-updates.php#L251)

***

## `cocart_prevent_wc_admin_note_created`

Filter to prevent note from being created.

| Parameter                | Type    | Description                   |
| ------------------------ | ------- | ----------------------------- |
| `$prevent_note_creation` | `bool`  | False by default              |
| `$args`                  | `array` | Arguments to create the note. |

* **Since**: 3.2.0 Introduced

**Defined in**: [`includes/classes/admin/woocommerce/class-cocart-wc-admin-notices.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/admin/woocommerce/class-cocart-wc-admin-notices.php#L102)

***

## `cocart_install_capability`

Filter the current users capabilities to install a CoCart plugin.

| Parameter     | Type     | Description       |
| ------------- | -------- | ----------------- |
| `$capability` | `string` | Capability level. |

**Defined in**: [`includes/classes/class-cocart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-helpers.php#L561)

***

## `cocart_show_plugin_search`

Filter if CoCart Plugin Suggestions should be active.

| Parameter           | Type   | Description                                  |
| ------------------- | ------ | -------------------------------------------- |
| `$show_suggestions` | `bool` | True if CoCart Plugin Suggestions is active. |

**Defined in**: [`includes/classes/class-cocart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-helpers.php#L586)

***

## `cocart_enable_setup_wizard`

See if we need the setup wizard or not.

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/class-cocart-install.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-install.php#L373)

***

## `cocart_requested_cart_key`

Filter allows the cart key to be overridden. Developer Note: Really only here so I don't have to create a new session handler to inject a customer ID with the POS Support Add-on.

* **Since**: 4.2.0 Introduced.

**Defined in**: [`includes/classes/class-cocart-session-handler.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-session-handler.php#L137)

***

## `cocart_cart_expiring`

Filter allows you to change the amount of time before the cart starts to expire. Default is (DAY\_IN\_SECONDS \* 6) = 6 Days

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/class-cocart-session-handler.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-session-handler.php#L252)

***

## `cocart_cart_expiration`

Filter allows you to change the amount of time before the cart has expired. Default is (DAY\_IN\_SECONDS \* 7) = 7 Days

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/class-cocart-session-handler.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-session-handler.php#L260)

***

## `cocart_cart_source`

Filter source of cart.

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/class-cocart-session-handler.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-session-handler.php#L348)

***

## `cocart_disable_load_cart`

Filter checks if "Load Cart from Session" feature is disabled.

* **Since**: 3.0.0 Introduced.
* **Returns**: `bool`

**Defined in**: [`includes/classes/class-cocart-session.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-session.php#L146)

***

## `cocart_load_cart_query_name`

Filter allows developers to add more white labelling when loading the cart via web.

| Parameter       | Type     | Description                   |
| --------------- | -------- | ----------------------------- |
| `$action_query` | `string` | Default is 'cocart-load-cart' |

* **Since**: 2.8.2 Introduced.

**Defined in**: [`includes/classes/class-cocart-session.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-session.php#L182)

***

## `cocart_load_cart_redirect_home`

Filter allows you to change where to redirect should loading the cart fail.

* **Since**: 5.0.0 Introduced.

**Defined in**: [`includes/classes/class-cocart-session.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-session.php#L277)

***

## `cocart_is_offline_mode`

Filters CoCart's offline mode.

| Parameter       | Type      | Description                      |
| --------------- | --------- | -------------------------------- |
| `$offline_mode` | `boolean` | Is CoCart's offline mode active. |

**Defined in**: [`includes/classes/class-cocart-status.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-status.php#L51)

***

## `cocart_is_local_site`

Filters is\_local\_site check.

| Parameter   | Type      | Description                          |
| ----------- | --------- | ------------------------------------ |
| `$is_local` | `boolean` | If the current site is a local site. |

**Defined in**: [`includes/classes/class-cocart-status.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-status.php#L149)

***

## `cocart_known_staging`

Filters the flags of known staging sites. An array of arrays that each are used to check if the current site is staging. }

| Parameter                                                                      | Type    | Description |
| ------------------------------------------------------------------------------ | ------- | ----------- |
| `$known_staging`                                                               | `array` |             |
| An array of arrays that each are used to check if the current site is staging. |         |             |

* `$urls` (array): URLs of staging sites in regex to check against site\_url.
* `$constants` (array): PHP constants of known staging/development environments.
  |

**Defined in**: [`includes/classes/class-cocart-status.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-status.php#L211)

***

## `cocart_is_staging_site`

Filters is\_staging\_site check.

| Parameter     | Type      | Description                            |
| ------------- | --------- | -------------------------------------- |
| `$is_staging` | `boolean` | If the current site is a staging site. |

**Defined in**: [`includes/classes/class-cocart-status.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/class-cocart-status.php#L237)

***

## `cocart_update_cart_validation`

Filter allows you to determine if the updated item in cart passed validation.

| Parameter     | Type     | Description                   |
| ------------- | -------- | ----------------------------- |
| `$cart_valid` | `bool`   | True by default.              |
| `$item_key`   | `string` | Item key of the item updated. |
| `$cart_item`  | `array`  | Cart item after updated.      |
| `$quantity`   | `int`    | New quantity amount.          |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/callbacks/update-cart.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/callbacks/update-cart.php#L89)

***

## `cocart_auth_header`

Filter allows you to change the authorization header.

| Parameter      | Type     | Description           |
| -------------- | -------- | --------------------- |
| `$auth_header` | `string` | Authorization header. |

* **Since**: 4.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/class-cocart-authentication.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-authentication.php#L221)

***

## `cocart_disable_all_cors`

Modifies if the "Cross Origin Headers" are allowed. Set as false to enable support.

* **Since**: 2.2.0 Introduced.

**Defined in**: [`includes/classes/rest-api/class-cocart-authentication.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-authentication.php#L478)

***

## `cocart_allow_origin`

Filter allows you to change the allowed HTTP origin result.

| Parameter | Type     | Description                                 |
| --------- | -------- | ------------------------------------------- |
| `$origin` | `string` | Origin URL if allowed, empty string if not. |

* **Since**: 2.5.1 Introduced.

**Defined in**: [`includes/classes/rest-api/class-cocart-authentication.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-authentication.php#L641)

***

## `cocart_does_product_allow_price_change`

Filter which products that can be allowed to override the price if not all.

| Parameter       | Type              | Description         |
| --------------- | ----------------- | ------------------- |
| `$allow_change` | `bool`            | Allow price change. |
| `$cart_item`    | `array`           | Cart item.          |
| `$request`      | `WP_REST_Request` | The request object. |

* **Since**: 4.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/class-cocart-cart-cache.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-cart-cache.php#L298)

***

## `cocart_cart_item_required_stock_is_not_enough`

Allows filter if product have enough stock to get added to the cart.

| Parameter    | Type         | Description           |
| ------------ | ------------ | --------------------- |
| `$has_stock` | `bool`       | If have enough stock. |
| `$product`   | `WC_Product` | The product object.   |
| `$cart_item` | `array`      | Cart item values.     |

**Defined in**: [`includes/classes/rest-api/class-cocart-cart-validation.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-cart-validation.php#L104)

***

## `cocart_cannot_add_product_type_to_cart_message`

Filters message about product type that cannot be added to the cart.

| Parameter       | Type         | Description         |
| --------------- | ------------ | ------------------- |
| `$message`      | `string`     | Message.            |
| `$product_data` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/class-cocart-product-validation.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-product-validation.php#L102)

***

## `cocart_return_default_response`

**See Also:**

* `cocart_{$endpoint}_response`
  Filter decides if the responses return as default or use the modified response which is filtered by the rest base.

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/class-cocart-response.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-response.php#L58)

***

## `cocart_load_cart_from_session`

Filter allows you to decide if the cart should load user meta when initialized. This means merge cart data from a registered customer with the requested cart.

| Parameter      | Type     | Description                                                        |
| -------------- | -------- | ------------------------------------------------------------------ |
| `$user_id`     | `int`    | User ID when authenticated. Zero if not authenticated.             |
| `$customer_id` | `string` | Customer ID requested when authenticated or a cart key for guests. |

* **Since**: 5.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/class-cocart-rest-api.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-rest-api.php#L232)

***

## `cocart_set_customer_id`

Filter allows to set the customer ID.

| Parameter          | Type  | Description      |
| ------------------ | ----- | ---------------- |
| `$current_user_id` | `int` | Current user ID. |

* **Since**: 4.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/class-cocart-rest-api.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/class-cocart-rest-api.php#L480)

***

## `cocart_product_cannot_add_to_cart_message`

Filters message about product cannot be added to cart.

| Parameter       | Type         | Description         |
| --------------- | ------------ | ------------------- |
| `$message`      | `string`     | Message.            |
| `$product_data` | `WC_Product` | The product object. |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-add-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-add-item-controller.php#L299)

***

## `cocart_item_added`

Filter allows additional data to be returned.

| Parameter     | Type     | Description                 |
| ------------- | -------- | --------------------------- |
| `$item_added` | `array`  | Item added to cart.         |
| `$item_key`   | `string` | Item key of the item added. |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-add-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-add-item-controller.php#L348)

***

## `cocart_totals_calculated_message`

Filters message about cart totals have been calculated.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-calculate-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-calculate-controller.php#L98)

***

## `cocart_cart_cleared_message`

Filters message about the cart being cleared.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-clear-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-clear-cart-controller.php#L136)

***

## `cocart_clear_cart_failed_message`

Filters message about the cart failing to clear.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-clear-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-clear-cart-controller.php#L151)

***

## `cocart_return_empty_cart`

Filter response for empty cart.

* **Since**: 2.0.8 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L212)

***

## `cocart_item_product`

Filter allows you to alter the item product data returned.

| Parameter    | Type         | Description                    |
| ------------ | ------------ | ------------------------------ |
| `$product`   | `WC_Product` | The product object.            |
| `$cart_item` | `array`      | The cart item data.            |
| `$item_key`  | `string`     | The item key currently looped. |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L243)

***

## `cocart_cart_item_removed_message`

Filter message about item removed from the cart.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L261)

***

## `cocart_product_title`

Filters the product title in cart.

| Parameter        | Type         | Description         |
| ---------------- | ------------ | ------------------- |
| `$product_title` | `string`     | Product title.      |
| `$product`       | `WC_Product` | The product object. |
| `$cart_item`     | `array`      | Cart item.          |
| `$item_key`      | `string`     | Item key.           |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L291)

***

## `cocart_item_thumbnail`

Filters the item thumbnail ID.

| Parameter       | Type     | Description           |
| --------------- | -------- | --------------------- |
| `$thumbnail_id` | `int`    | Product thumbnail ID. |
| `$cart_item`    | `array`  | Cart item.            |
| `$item_key`     | `string` | Item key.             |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L329)

***

## `cocart_cart_contents`

Filter allows additional data to be returned for a specific item in cart.

| Parameter        | Type         | Description         |
| ---------------- | ------------ | ------------------- |
| `$cart_contents` | `array`      | Cart contents.      |
| `$item_key`      | `string`     | Item key.           |
| `$cart_item`     | `array`      | Cart item.          |
| `$product`       | `WC_Product` | The product object. |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L351)

***

## `cocart_return_cart_session_contents`

Return cart content from session if set.

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L363)

***

## `cocart_return_cart_contents`

Return cart content from session if set.

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L365)

***

## `cocart_invalid_variation_data_message`

Filters message about invalid variation data.

| Parameter          | Type     | Description      |
| ------------------ | -------- | ---------------- |
| `$message`         | `string` | Message.         |
| `$attribute_label` | `string` | Attribute Label. |
| `$attribute`       | `array`  | Allowed values.  |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L551)

***

## `cocart_missing_variation_data_message`

Filters message about missing variation data.

| Parameter             | Type     | Description                   |
| --------------------- | -------- | ----------------------------- |
| `$message`            | `string` | Message.                      |
| `$missing_attributes` | `int`    | Number of missing attributes. |
| `$missing_attributes` | `array`  | List of missing attributes.   |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L578)

***

## `cocart_product_does_not_exist_message`

Filters message about product does not exist.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L694)

***

## `cocart_product_failed_validation_message`

Filters message about product failing validation.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L746)

***

## `cocart_product_can_not_add_another_message`

Filters message about product not being allowed to add another.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L786)

***

## `cocart_product_cannot_be_purchased_message`

Filters message about product unable to be purchased.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L804)

***

## `cocart_product_is_out_of_stock_message`

Filters message about product is out of stock.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-controller.php#L825)

***

## `cocart_no_items_in_cart_message`

Filters message about no items in the cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-count-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-count-controller.php#L118)

***

## `cocart_no_items_message`

Filters message about no items in cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L106)

***

## `cocart_item_not_in_cart_message`

Filters message about item not in cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |
| `$method`  | `string` | Method.     |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L129)

***

## `cocart_can_not_remove_item_message`

Filters message about can not remove item.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L171)

***

## `cocart_cart_item_key_required_message`

Filters message about cart item key required.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |
| `$method`  | `string` | Method.     |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L188)

***

## `cocart_can_not_restore_item_message`

Filters message about can not restore item.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L249)

***

## `cocart_cart_item_key_required_message`

Filters message about cart item key required.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |
| `$method`  | `string` | Method.     |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L266)

***

## `cocart_item_not_in_cart_message`

Filters message about cart item key required.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |
| `$method`  | `string` | Method.     |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L313)

***

## `cocart_can_not_increase_quantity_message`

Filters message about product not being allowed to increase quantity.

| Parameter       | Type         | Description         |
| --------------- | ------------ | ------------------- |
| `$message`      | `string`     | Message.            |
| `$current_data` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L369)

***

## `cocart_can_not_update_item_message`

Filters message about can not update item.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L414)

***

## `cocart_update_item`

Filter allows you to alter the returned response once item is updated.

| Parameter       | Type         | Description                            |
| --------------- | ------------ | -------------------------------------- |
| `$response`     | `array`      | Response returned.                     |
| `$new_data`     | `array`      | Item data.                             |
| `$quantity`     | `float`      | Requested quantity to update for item. |
| `$product_data` | `WC_Product` | The product object.                    |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L470)

***

## `cocart_cart_item_key_required_message`

Filters message about cart item key required.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |
| `$method`  | `string` | Method.     |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/cart/class-cocart-item-controller.php#L487)

***

## `cocart_prepare_product_attribute`

Filter a attribute item returned from the API. Allows modification of the product attribute data right before it is returned.

| Parameter   | Type               | Description                    |
| ----------- | ------------------ | ------------------------------ |
| `$response` | `WP_REST_Response` | The response object.           |
| `$item`     | `object`           | The original attribute object. |
| `$request`  | `WP_REST_Request`  | The request object.            |

**Defined in**: [`includes/classes/rest-api/controllers/v1/products/class-cocart-product-attributes-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/products/class-cocart-product-attributes-controller.php#L154)

***

## `cocart_product_review_query`

Filters arguments, before passing to WP\_Comment\_Query, when querying reviews via the REST API.

| Parameter        | Type              | Description                                |
| ---------------- | ----------------- | ------------------------------------------ |
| `$prepared_args` | `array`           | Array of arguments for WP\_Comment\_Query. |
| `$request`       | `WP_REST_Request` | The request object.                        |

**Defined in**: [`includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php#L258)

***

## `cocart_pre_insert_product_review`

Filters a review before it is inserted via the REST API. Allows modification of the review right before it is inserted via wp\_insert\_comment(). Returning a WP\_Error value from the filter will short circuit insertion and allow skipping further processing.

| Parameter          | Type              | Description                     |                                                     |
| ------------------ | ----------------- | ------------------------------- | --------------------------------------------------- |
| `$prepared_review` | \`array           | WP\_Error\`                     | The prepared review data for wp\_insert\_comment(). |
| `$request`         | `WP_REST_Request` | Full details about the request. |                                                     |

**Defined in**: [`includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php#L406)

***

## `cocart_prepare_product_review`

Filter product reviews object returned from the REST API.

| Parameter   | Type               | Description                                    |
| ----------- | ------------------ | ---------------------------------------------- |
| `$response` | `WP_REST_Response` | The response object.                           |
| `$review`   | `WP_Comment`       | Product review object used to create response. |
| `$request`  | `WP_REST_Request`  | The request object.                            |

**Defined in**: [`includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php#L534)

***

## `cocart_preprocess_product_review`

Filters a review after it is prepared for the database. Allows modification of the review right after it is prepared for the database.

| Parameter          | Type              | Description                                       |
| ------------------ | ----------------- | ------------------------------------------------- |
| `$prepared_review` | `array`           | The prepared review data for `wp_insert_comment`. |
| `$request`         | `WP_REST_Request` | The request object.                               |

**Defined in**: [`includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php#L589)

***

## `cocart_product_review_collection_params`

Filter collection parameters for the reviews controller. This filter registers the collection parameter, but does not map the collection parameter to an internal WP\_Comment\_Query parameter. Use the `cocart_product_review_query` filter to set WP\_Comment\_Query parameters.

| Parameter | Type    | Description                                  |
| --------- | ------- | -------------------------------------------- |
| `$params` | `array` | JSON Schema-formatted collection parameters. |

**Defined in**: [`includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/products/class-cocart-product-reviews-controller.php#L825)

***

## `cocart_prepare_product_object`

Filter the data for a response.

| Parameter   | Type               | Description          |
| ----------- | ------------------ | -------------------- |
| `$response` | `WP_REST_Response` | The response object. |
| `$product`  | `WC_Product`       | The product object.  |
| `$request`  | `WP_REST_Request`  | The request object.  |

**Defined in**: [`includes/classes/rest-api/controllers/v1/products/class-cocart-products-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v1/products/class-cocart-products-controller.php#L335)

***

## `cocart_cart_item_name`

Filter allows the product name of the item to change.

| Parameter       | Type         | Description                                              |
| --------------- | ------------ | -------------------------------------------------------- |
| `$product_name` | `string`     | Product name.                                            |
| `$product`      | `WC_Product` | The product object.                                      |
| `$cart_item`    | `array`      | The cart item data.                                      |
| `$item_key`     | `string`     | The item key generated based on the details of the item. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/admin/class-cocart-session-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/admin/class-cocart-session-controller.php#L364)

***

## `cocart_cart_item_title`

Filter allows the product title of the item to change.

| Parameter        | Type         | Description                                              |
| ---------------- | ------------ | -------------------------------------------------------- |
| `$product_title` | `string`     | Product title.                                           |
| `$product`       | `WC_Product` | The product object.                                      |
| `$cart_item`     | `array`      | The cart item data.                                      |
| `$item_key`      | `string`     | The item key generated based on the details of the item. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/admin/class-cocart-session-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/admin/class-cocart-session-controller.php#L375)

***

## `cocart_cart_item_data`

Filter allows you to alter the remaining cart item data.

| Parameter    | Type     | Description                                                           |
| ------------ | -------- | --------------------------------------------------------------------- |
| `$cart_item` | `array`  | The cart item data.                                                   |
| `$item_key`  | `string` | Generated ID based on the product information when added to the cart. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/admin/class-cocart-session-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/admin/class-cocart-session-controller.php#L453)

***

## `cocart_skip_woocommerce_item_validation`

Filter the item to skip product validation as it is added to cart.

| Parameter           | Type    | Description                                              |
| ------------------- | ------- | -------------------------------------------------------- |
| `$validate_product` | `bool`  | Whether to validate the product or not.                  |
| `$product_data`     | `array` | Contains the product data of the product to add to cart. |
| `$product_id`       | `int`   | The product ID.                                          |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-add-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-add-item-controller.php#L345)

***

## `cocart_product_cannot_add_to_cart_message`

Filters message about product cannot be added to cart.

| Parameter       | Type         | Description         |
| --------------- | ------------ | ------------------- |
| `$message`      | `string`     | Message.            |
| `$product_data` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-add-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-add-item-controller.php#L387)

***

## `cocart_add_item_query_parameters`

Filters the query parameters for adding item to cart. This filter allows you to extend the query parameters without removing any default parameters.

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-add-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-add-item-controller.php#L560)

***

## `cocart_add_items_query_parameters`

Extends the query parameters. Dev Note: Nothing needs to pass so your safe if you think you will remove any default parameters.

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-add-items-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-add-items-controller.php#L353)

***

## `cocart_get_cart_item`

Filters the cart item before it is returned.

| Parameter    | Type     | Description                                                                      |
| ------------ | -------- | -------------------------------------------------------------------------------- |
| `$item`      | `array`  | Details of the item in the cart if it exists.                                    |
| `$condition` | `string` | Condition of item. Default: "add", Option: "add", "remove", "restore", "update". |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L120)

***

## `cocart_empty_cart`

Filter response for empty cart.

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L321)

***

## `cocart_product_failed_validation_message`

Filters message about product failing validation.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

* **Since**: 1.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L583)

***

## `cocart_product_can_not_add_another_message`

Filters message about product not being allowed to add another.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L951)

***

## `cocart_product_is_out_of_stock_message`

Filters message about product is out of stock.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1003)

***

## `cocart_product_not_enough_stock_message`

Filters message about product not having enough stock.

| Parameter         | Type         | Description         |
| ----------------- | ------------ | ------------------- |
| `$message`        | `string`     | Message.            |
| `$product`        | `WC_Product` | The product object. |
| `$stock_quantity` | `int`        | Quantity remaining. |

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1036)

***

## `cocart_cart_item_name`

Filter allows the product name of the item to change.

| Parameter       | Type         | Description                                              |
| --------------- | ------------ | -------------------------------------------------------- |
| `$product_name` | `string`     | Product name.                                            |
| `$product`      | `WC_Product` | The product object.                                      |
| `$cart_item`    | `array`      | The cart item data.                                      |
| `$item_key`     | `string`     | The item key generated based on the details of the item. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1148)

***

## `cocart_cart_item_title`

Filter allows the product title of the item to change.

| Parameter        | Type         | Description                                              |
| ---------------- | ------------ | -------------------------------------------------------- |
| `$product_title` | `string`     | Product title.                                           |
| `$product`       | `WC_Product` | The product object.                                      |
| `$cart_item`     | `array`      | The cart item data.                                      |
| `$item_key`      | `string`     | The item key generated based on the details of the item. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1159)

***

## `cocart_cart_item_data`

Filter allows you to alter the remaining cart item data.

| Parameter    | Type         | Description                                                           |
| ------------ | ------------ | --------------------------------------------------------------------- |
| `$cart_item` | `array`      | The cart item data.                                                   |
| `$item_key`  | `string`     | Generated ID based on the product information when added to the cart. |
| `$product`   | `WC_Product` | The product object.                                                   |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1320)

***

## `cocart_item_product`

Filter allows you to alter the item product data returned.

| Parameter    | Type         | Description                    |
| ------------ | ------------ | ------------------------------ |
| `$product`   | `WC_Product` | The product object.            |
| `$cart_item` | `array`      | The cart item data.            |
| `$item_key`  | `string`     | The item key currently looped. |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1361)

***

## `cocart_cart_items`

Filter allows additional data to be returned for a specific item in cart.

| Parameter    | Type         | Description                    |
| ------------ | ------------ | ------------------------------ |
| `$items`     | `array`      | Array of items in the cart.    |
| `$item_key`  | `string`     | The item key currently looped. |
| `$cart_item` | `array`      | The cart item data.            |
| `$product`   | `WC_Product` | The product object.            |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1375)

***

## `cocart_cross_sells`

Filters the cross sell items.

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L1500)

***

## `cocart_cart_items_schema`

Extend cart schema properties for items. Filter allows you to extend the cart schema properties for items without removing any default properties.

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L3076)

***

## `cocart_cart_items_extensions_schema`

Extend cart schema properties for extensions. Filter allows you to extend the cart schema properties for extensions.

* **Since**: 5.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L3085)

***

## `cocart_cart_query_parameters`

Extend the query parameters for the cart. This filter allows you to extend the query parameters without removing any default parameters.

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-cart-controller.php#L3138)

***

## `cocart_cart_cleared_message`

Filters message about the cart being cleared.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-clear-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-clear-cart-controller.php#L150)

***

## `cocart_clear_cart_failed_message`

Filters message about the cart failing to clear.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-clear-cart-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-clear-cart-controller.php#L171)

***

## `cocart_no_items_in_cart_message`

Filters message about no items in the cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-count-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-count-controller.php#L111)

***

## `cocart_item_not_in_cart_message`

Filters message about cart item key required.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |
| `$method`  | `string` | Method.     |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-item-controller.php#L102)

***

## `cocart_no_items_in_cart_message`

Filters message about no items in the cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-items-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-items-controller.php#L89)

***

## `cocart_no_items_message`

Filters message about no items in cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-remove-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-remove-item-controller.php#L96)

***

## `cocart_item_removed_message`

Filters message about item removed from cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-remove-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-remove-item-controller.php#L145)

***

## `cocart_can_not_remove_item_message`

Filters message about can not remove item.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-remove-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-remove-item-controller.php#L196)

***

## `cocart_item_restored_message`

Filters message about item already restored to cart.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php#L119)

***

## `cocart_cart_item_restored_title`

Re-calculate totals now an item has been restored.

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php#L145)

***

## `cocart_cart_item_restored_message`

Filters message about item restored.

| Parameter           | Type     | Description |
| ------------------- | -------- | ----------- |
| `$restored_message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php#L164)

***

## `cocart_can_not_restore_item_message`

Filters message about can not restore item.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-restore-item-controller.php#L189)

***

## `cocart_item_not_in_cart_message`

Filters message about cart item key required.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |
| `$method`  | `string` | Method.     |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php#L109)

***

## `cocart_update_cart_validation`

Filter allows you to determine if the updated item in cart passed validation.

| Parameter       | Type     | Description                          |
| --------------- | -------- | ------------------------------------ |
| `$cart_valid`   | `bool`   | True by default.                     |
| `$item_key`     | `string` | Item key.                            |
| `$current_data` | `array`  | Product data of the item in cart.    |
| `$quantity`     | `float`  | The requested quantity to change to. |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php#L145)

***

## `cocart_can_not_increase_quantity_message`

Filters message about product not being allowed to increase quantity.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

* **Since**: 1.0.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php#L168)

***

## `cocart_can_not_update_item_message`

Filters message about can not update item.

| Parameter  | Type     | Description |
| ---------- | -------- | ----------- |
| `$message` | `string` | Message.    |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php#L210)

***

## `cocart_update_item`

Filters the update status.

| Parameter   | Type         | Description         |
| ----------- | ------------ | ------------------- |
| `$response` | `array`      | Status response.    |
| `$new_data` | `array`      | Cart item.          |
| `$quantity` | `int`        | Quantity.           |
| `$product`  | `WC_Product` | The product object. |

* **Since**: 2.0.1 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/cart/class-cocart-update-item-controller.php#L265)

***

## `cocart_login_extras`

Filter allows you to add extra information based on the current user.

| Parameter            | Type     | Description            |
| -------------------- | -------- | ---------------------- |
| `$extra_information` | `array`  | The extra information. |
| `$current_user`      | `object` | The current user.      |

* **Since**: 3.8.1 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/others/class-cocart-login-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/others/class-cocart-login-controller.php#L126)

***

## `cocart_store_index`

Filters the API store index data. This contains the data describing the API. This includes information about the store, routes available on the API, and a small amount of data about the site.

| Parameter   | Type               | Description    |
| ----------- | ------------------ | -------------- |
| `$response` | `WP_REST_Response` | Response data. |

**Defined in**: [`includes/classes/rest-api/controllers/v2/others/class-cocart-store-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/others/class-cocart-store-controller.php#L117)

***

## `cocart_products_add_to_cart_rest_url`

Filters the REST URL shortcut for adding the product to cart.

| Parameter   | Type         | Description                              |
| ----------- | ------------ | ---------------------------------------- |
| `$rest_url` | `string`     | REST URL for adding product to the cart. |
| `$product`  | `WC_Product` | The product object.                      |
| `$type`     | `string`     | Product type.                            |
| `$id`       | `int`        | Product ID.                              |

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/rest-api/controllers/v2/products/class-cocart-products-controller.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/rest-api/controllers/v2/products/class-cocart-products-controller.php#L895)

***

## `cocart_get_customer_`

We go through each field and check that we can return it's data as set by default. If we can't get the data we rely on getting customer data via a filter for that field. Any fields that can not return information will be empty.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L85)

***

## `cocart_shipping_package_details_array`

Filter allows you to change the package details.

| Parameter        | Type    | Description      |
| ---------------- | ------- | ---------------- |
| `$product_names` | `array` | Product names.   |
| `$package`       | `array` | Package details. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L219)

***

## `cocart_item_thumbnail_size`

Filters the thumbnail size of the product image.

| Parameter         | Type     | Description                                    |
| ----------------- | -------- | ---------------------------------------------- |
| `$thumbnail_size` | `string` | Thumbnail size.                                |
| `$removed_item`   | `bool`   | Determines if the item in the cart is removed. |

* **Since**: 2.0.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L680)

***

## `cocart_cart_item_name`

Filter allows the product name of the item to change.

| Parameter       | Type         | Description                                              |
| --------------- | ------------ | -------------------------------------------------------- |
| `$product_name` | `string`     | Product name.                                            |
| `$product`      | `WC_Product` | The product object.                                      |
| `$cart_item`    | `array`      | The cart item data.                                      |
| `$item_key`     | `string`     | The item key generated based on the details of the item. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L768)

***

## `cocart_cart_item_data`

Filter allows you to alter the remaining cart item data.

| Parameter    | Type         | Description                                                           |
| ------------ | ------------ | --------------------------------------------------------------------- |
| `$cart_item` | `array`      | The cart item data.                                                   |
| `$item_key`  | `string`     | Generated ID based on the product information when added to the cart. |
| `$product`   | `WC_Product` | The product object.                                                   |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L815)

***

## `cocart_product_cannot_be_added_message`

Filters message about product that cannot be added to cart.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

* **Since**: 3.0.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L1013)

***

## `cocart_quantity_maximum_allowed`

Filter allows control over the maximum quantity a customer is able to add said item to the cart.

| Parameter   | Type         | Description         |                                    |
| ----------- | ------------ | ------------------- | ---------------------------------- |
| `$quantity` | \`int        | float\`             | Maximum quantity to validate with. |
| `$product`  | `WC_Product` | The product object. |                                    |

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L1125)

***

## `cocart_invalid_variation_data_message`

Filters message about invalid variation data.

| Parameter          | Type     | Description      |
| ------------------ | -------- | ---------------- |
| `$message`         | `string` | Message.         |
| `$attribute_label` | `string` | Attribute Label. |
| `$attribute`       | `array`  | Allowed values.  |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L1209)

***

## `cocart_missing_variation_data_message`

Filters message about missing variation data.

| Parameter     | Type     | Description                                  |
| ------------- | -------- | -------------------------------------------- |
| `$message`    | `string` | Message.                                     |
| `$count`      | `int`    | Number of missing attributes.                |
| `$attributes` | `string` | Comma separate a list of missing attributes. |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L1241)

***

## `cocart_product_cannot_be_purchased_message`

Filters message about product unable to be purchased.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$message` | `string`     | Message.            |
| `$product` | `WC_Product` | The product object. |

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L1389)

***

## `cocart_cart_item_key_required_message`

Filters message about cart item key required.

| Parameter  | Type     | Description                                   |
| ---------- | -------- | --------------------------------------------- |
| `$message` | `string` | Message.                                      |
| `$status`  | `string` | Status of which we are checking the item key. |

* **Since**: 2.1.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-cart-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-cart-helpers.php#L1424)

***

## `cocart_quantity_minimum_requirement`

Filters the minimum quantity requirement the product allows to be purchased.

| Parameter           | Type         | Description                            |
| ------------------- | ------------ | -------------------------------------- |
| `$minimum_quantity` | `int`        | Minimum purchase quantity requirement. |
| `$product`          | `WC_Product` | The product object.                    |

* **Since**: 3.0.17 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-product-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-product-helpers.php#L137)

***

## `cocart_quantity_maximum_allowed`

Filters the products maximum quantity allowed to be purchased.

| Parameter           | Type         | Description                        |
| ------------------- | ------------ | ---------------------------------- |
| `$maximum_quantity` | `int`        | Maximum purchase quantity allowed. |
| `$product`          | `WC_Product` | The product object.                |

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-product-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-product-helpers.php#L162)

***

## `cocart_products_variable_empty_price`

Filter the variable products empty prices.

| Parameter       | Type         | Description         |
| --------------- | ------------ | ------------------- |
| `$empty_prices` | `array`      | Empty array.        |
| `$product`      | `WC_Product` | The project object. |

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-product-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-product-helpers.php#L198)

***

## `cocart_products_get_price_range`

Filters the products price range.

| Parameter  | Type         | Description                      |
| ---------- | ------------ | -------------------------------- |
| `$price`   | `array`      | The current product price range. |
| `$product` | `WC_Product` | The product object.              |

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-product-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-product-helpers.php#L245)

***

## `cocart_products_allowed_meta_keys`

Filter allows you to specify the allowed meta keys for the product. When filtering, only list the meta keys you want to include!

| Parameter            | Type         | Description         |
| -------------------- | ------------ | ------------------- |
| `$allowed_meta_keys` | `array`      | Allowed meta keys.  |
| `$product`           | `WC_Product` | The product object. |

* **Since**: 5.0.0 Updated to whitelist allowed meta keys.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-product-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-product-helpers.php#L325)

***

## `cocart_products_get_safe_meta_data`

Filter allows you to control what remaining product meta data is safe to return.

| Parameter    | Type         | Description         |
| ------------ | ------------ | ------------------- |
| `$safe_meta` | `array`      | Safe meta.          |
| `$product`   | `WC_Product` | The product object. |

* **Since**: 3.11.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-product-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-product-helpers.php#L342)

***

## `cocart_get_product_slug`

Filter allows you to change the product slug returned.

| Parameter  | Type         | Description         |
| ---------- | ------------ | ------------------- |
| `$product` | `WC_Product` | The product object. |

* **Since**: 5.0.0 Introduced.

**Defined in**: [`includes/classes/utilities/class-cocart-utilities-product-helpers.php`](https://github.com/co-cart/co-cart/blob/development/includes/classes/utilities/class-cocart-utilities-product-helpers.php#L412)

***

## `cocart_prepare_money_disable_decimals`

Filter allows you to disable the decimals. If set to "True" the decimals will be forced to "Zero".

| Parameter           | Type   | Description       |
| ------------------- | ------ | ----------------- |
| `$disable_decimals` | `bool` | False by default. |

* **Since**: 3.1.0 Introduced.

**Defined in**: [`includes/cocart-formatting-functions.php`](https://github.com/co-cart/co-cart/blob/development/includes/cocart-formatting-functions.php#L106)

***

## `cocart_price_no_html`

Filters the string of price markup.

| Parameter            | Type     | Description                                                     |                                                        |
| -------------------- | -------- | --------------------------------------------------------------- | ------------------------------------------------------ |
| `$return`            | `string` | Price HTML markup.                                              |                                                        |
| `$price`             | `string` | Formatted price.                                                |                                                        |
| `$args`              | `array`  | Pass on the args.                                               |                                                        |
| `$unformatted_price` | `float`  | Price as float to allow plugins custom formatting. Since 3.2.0. |                                                        |
| `$original_price`    | \`float  | string\`                                                        | Original price as float, or empty string. Since 5.0.0. |

**Defined in**: [`includes/cocart-rest-functions.php`](https://github.com/co-cart/co-cart/blob/development/includes/cocart-rest-functions.php#L342)

***

## `cocart_wp_frontend_url`

Filters the frontend URL that users will be redirected to if WordPress access is disabled.

* **Since**: 5.0.0 Introduced.

**Defined in**: [`includes/cocart-rest-functions.php`](https://github.com/co-cart/co-cart/blob/development/includes/cocart-rest-functions.php#L648)

***

## `cocart_wp_disable_access`

Filters access to WordPress. Default is 'no'.

* **Since**: 5.0.0 Introduced.

**Defined in**: [`includes/cocart-rest-functions.php`](https://github.com/co-cart/co-cart/blob/development/includes/cocart-rest-functions.php#L682)

***