cart.cart_line.added

Generated from COPE public event contracts. Do not edit this page by hand.

Use this event to track product additions before checkout.

Delivery Contract

Field	Value
Encoding	CloudEvents 1.0 structured JSON
Delivery	At least once
Idempotency	Use the CloudEvents `source` + `id` tuple, or COPE `idempotency_key` when available.
Source	`cope.cart`
Subject pattern	`cart_line:<identifier>`
Category	Cart
Availability	Available in the public webhook reference.
Schema title	cart.cart_line.added v1 payload
Schema ID	`https://schemas.cope.com/events/cart.cart_line.added/v1`

Payload Fields

Field	Required	Type	Allowed Values	Description
`cart_id`	yes	`string`	-	-
`line_id`	yes	`integer`	-	-
`product_id`	yes	`integer`	-	-

Example CloudEvent

{
  "data": {
    "cart_id": "example_id",
    "line_id": 1000,
    "product_id": 1000
  },
  "datacontenttype": "application/json",
  "dataschema": "https://schemas.cope.com/events/cart.cart_line.added/v1",
  "id": "cart.cart_line.added:example",
  "idempotency_key": "cart.cart_line.added:example",
  "source": "cope.cart",
  "specversion": "1.0",
  "subject": "cart_line:example",
  "time": "2026-05-05T12:00:00.000Z",
  "type": "cart.cart_line.added"
}

Compatibility

Fields may be added within the same major version. Removing or changing the meaning of a documented field requires a new event version.

​cart.cart_line.added

​Delivery Contract

​Payload Fields

​Example CloudEvent

​Compatibility

cart.cart_line.added

Delivery Contract

Payload Fields

Example CloudEvent

Compatibility