Apply discount code
Applies a promotion discount code to the cart. The code is matched case-insensitively.
For gift cards, use the dedicated POST /carts/{cart_id}/gift_cards endpoint instead.
POST
Spree SDK
Authorizations
Publishable API key for store access
JWT token for authenticated customers
Headers
Bearer token for authenticated customers
Order token for guest access
Unique key for request idempotency.
Path Parameters
Cart prefixed ID (e.g., cart_abc123)
Body
application/json
Promotion discount code to apply
Example:
"SAVE10"
Response
discount code applied
Spree SDK

