merchant-proxy-opt-in-url

Type: String

Use this attribute on Croissant Cart Atomic Components to enable users to opt an existing cart into Croissant.

The value of this attribute should be a proxy URL to your server’s endpoint, which will make authenticated requests to the /carts resource in the Retailer API.

Croissant Cart Atomic Input Components will automatically handle user interactions, display opt-in notifications, and send the POST request to the specified endpoint.