cart_viewed

The cart_viewed event logs an instance where a customer visited the cart page.

Anchor to propertiesProperties

Anchor to clientId clientId string: The client-side ID of the customer, provided by Shopify
Anchor to context context
Anchor to data data
Anchor to id id string: The ID of the customer event
Anchor to name name string: The name of the customer event
Anchor to seq seq number: The sequence index number of the event.
Anchor to timestamp timestamp string: The timestamp of when the customer event occurred, in ISO 8601 format
Anchor to type type .Standard

Context

A snapshot of various read-only properties of the browser at the time of event

document
Snapshot of a subset of properties of the `document` object in the top frame of the browser
```
WebPixelsDocument
```
navigator
Snapshot of a subset of properties of the `navigator` object in the top frame of the browser
```
WebPixelsNavigator
```
window
Snapshot of a subset of properties of the `window` object in the top frame of the browser
```
WebPixelsWindow
```

WebPixelsDocument

A snapshot of a subset of properties of the `document` object in the top frame of the browser

characterSet
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Document), returns the character set being used by the document
```
string
```
location
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Document), returns the URI of the current document
```
Location
```
referrer
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Document), returns the URI of the page that linked to this page
```
string
```
title
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Document), returns the title of the current document
```
string
```

Location

A snapshot of a subset of properties of the `location` object in the top frame of the browser

hash
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing a `'#'` followed by the fragment identifier of the URL
```
string
```
host
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing the host, that is the hostname, a `':'`, and the port of the URL
```
string
```
hostname
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing the domain of the URL
```
string
```
href
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing the entire URL
```
string
```
origin
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing the canonical form of the origin of the specific location
```
string
```
pathname
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing an initial `'/'` followed by the path of the URL, not including the query string or fragment
```
string
```
port
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing the port number of the URL
```
string
```
protocol
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing the protocol scheme of the URL, including the final `':'`
```
string
```
search
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Location), a string containing a `'?'` followed by the parameters or "querystring" of the URL
```
string
```

WebPixelsNavigator

A snapshot of a subset of properties of the `navigator` object in the top frame of the browser

cookieEnabled
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Navigator), returns `false` if setting a cookie will be ignored and true otherwise
```
boolean
```
language
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Navigator), returns a string representing the preferred language of the user, usually the language of the browser UI. The `null` value is returned when this is unknown
```
string
```
languages
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Navigator), returns an array of strings representing the languages known to the user, by order of preference
```
ReadonlyArray<string>
```
userAgent
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Navigator), returns the user agent string for the current browser
```
string
```

WebPixelsWindow

A snapshot of a subset of properties of the `window` object in the top frame of the browser

innerHeight
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), gets the height of the content area of the browser window including, if rendered, the horizontal scrollbar
```
number
```
innerWidth
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), gets the width of the content area of the browser window including, if rendered, the vertical scrollbar
```
number
```
location
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), the location, or current URL, of the window object
```
Location
```
origin
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), the global object's origin, serialized as a string
```
string
```
outerHeight
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), gets the height of the outside of the browser window
```
number
```
outerWidth
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), gets the width of the outside of the browser window
```
number
```
pageXOffset
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), an alias for window.scrollX
```
number
```
pageYOffset
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), an alias for window.scrollY
```
number
```
screen
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Screen), the interface representing a screen, usually the one on which the current window is being rendered
```
Screen
```
screenX
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), the horizontal distance from the left border of the user's browser viewport to the left side of the screen
```
number
```
screenY
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), the vertical distance from the top border of the user's browser viewport to the top side of the screen
```
number
```
scrollX
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), the number of pixels that the document has already been scrolled horizontally
```
number
```
scrollY
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Window), the number of pixels that the document has already been scrolled vertically
```
number
```

Screen

The interface representing a screen, usually the one on which the current window is being rendered

height
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Screen/height), the height of the screen
```
number
```
width
Per [MDN](https://developer.mozilla.org/en-US/docs/Web/API/Screen/width), the width of the screen
```
number
```

PixelEventsCartViewedData

cart
```
Cart | null
```

Cart

A cart represents the merchandise that a customer intends to purchase, and the estimated cost associated with the cart.

attributes
The attributes associated with the cart. This property is only available if the shop has [upgraded to Checkout Extensibility](https://help.shopify.com/en/manual/checkout-settings/checkout-extensibility/checkout-upgrade).
```
Attribute[]
```
cost
The estimated costs that the customer will pay at checkout.
```
CartCost
```
id
A globally unique identifier.
```
string | null
```
lines
A list of lines containing information about the items the customer intends to purchase.
```
CartLine[]
```
totalQuantity
The total number of items in the cart.
```
number
```

Attribute

Custom attributes associated with the cart or checkout.

key
The key for the attribute.
```
string
```
value
The value for the attribute.
```
string
```

CartCost

The costs that the customer will pay at checkout. It uses [`CartBuyerIdentity`](https://shopify.dev/api/storefront/reference/cart/cartbuyeridentity) to determine [international pricing](https://shopify.dev/custom-storefronts/internationalization/international-pricing#create-a-cart).

totalAmount
The total amount for the customer to pay.
```
MoneyV2
```

MoneyV2

A monetary value with currency.

amount
The decimal money amount.
```
number
```
currencyCode
The three-letter code that represents the currency, for example, USD. Supported codes include standard ISO 4217 codes, legacy codes, and non- standard codes.
```
string
```

CartLine

Information about the merchandise in the cart.

cost
The cost of the merchandise that the customer will pay for at checkout. The costs are subject to change and changes will be reflected at checkout.
```
CartLineCost
```
merchandise
The merchandise that the buyer intends to purchase.
```
ProductVariant
```
quantity
The quantity of the merchandise that the customer intends to purchase.
```
number
```

CartLineCost

The cost of the merchandise line that the customer will pay at checkout.

totalAmount
The total cost of the merchandise line.
```
MoneyV2
```

ProductVariant

A product variant represents a different version of a product, such as differing sizes or differing colors.

id
A globally unique identifier.
```
string | null
```
image
Image associated with the product variant. This field falls back to the product image if no image is available.
```
Image | null
```
price
The product variant’s price.
```
MoneyV2
```
product
The product object that the product variant belongs to.
```
Product
```
sku
The SKU (stock keeping unit) associated with the variant.
```
string | null
```
title
The product variant’s title.
```
string | null
```
untranslatedTitle
The product variant’s untranslated title.
```
string | null
```

Image

An image resource.

src
The location of the image as a URL.
```
string | null
```

Product

A product is an individual item for sale in a Shopify store.

id
The ID of the product.
```
string | null
```
title
The product’s title.
```
string
```
type
The [product type](https://help.shopify.com/en/manual/products/details/product-type) specified by the merchant.
```
string | null
```
untranslatedTitle
The product’s untranslated title.
```
string | null
```
url
The relative URL of the product.
```
string | null
```
vendor
The product’s vendor name.
```
string
```

EventType

AdvancedDom
```
advanced-dom
```
Custom
```
custom
```
Dom
```
dom
```
Meta
```
meta
```
Standard
```
standard
```

Examples

import {register} from '@shopify/web-pixels-extension';

analytics.subscribe('cart_viewed', (event) => {

// Example for accessing event data

const totalCartCost = event.data.cart.cost.totalAmount.amount;

const firstCartLineItemName =

event.data.cart.lines[0]?.merchandise.product.title;

const payload = {

event_name: event.name,

event_data: {

cartCost: totalCartCost,

firstCartItemName: firstCartLineItemName,

};

// Example for sending event data to third party servers

fetch('https://example.com/pixel', {

method: 'POST',

body: JSON.stringify(payload),

keepalive: true,

});

Examples

Accessing Standard Events

App Pixel

import {register} from '@shopify/web-pixels-extension';

register(({analytics}) => {
  analytics.subscribe('cart_viewed', (event) => {
    // Example for accessing event data
    const totalCartCost = event.data.cart.cost.totalAmount.amount;

    const firstCartLineItemName =
      event.data.cart.lines[0]?.merchandise.product.title;

    const payload = {
      event_name: event.name,
      event_data: {
        cartCost: totalCartCost,
        firstCartItemName: firstCartLineItemName,
      },
    };

    // Example for sending event data to third party servers
    fetch('https://example.com/pixel', {
      method: 'POST',
      body: JSON.stringify(payload),
      keepalive: true,
    });
  });
});

Custom Pixel

analytics.subscribe('cart_viewed', (event) => {
  // Example for accessing event data
  const totalCartCost = event.data.cart.cost.totalAmount.amount;

  const firstCartLineItemName =
    event.data.cart.lines[0]?.merchandise.product.title;

  const payload = {
    event_name: event.name,
    event_data: {
      cartCost: totalCartCost,
      firstCartItemName: firstCartLineItemName,
    },
  };

  // Example for sending event to third party servers
  fetch('https://example.com/pixel', {
    method: 'POST',
    body: JSON.stringify(payload),
    keepalive: true,
  });
});

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