Apply Promotions

curl -X POST 'http://localhost:9000/store/carts/cart_01JB2KB1CD/promotions' \
  -H 'Content-Type: application/json' \
  -H 'x-publishable-api-key: pk_01JB2K3XYZ' \
  -d '{"promo_codes": ["SUMMER10"]}'

const { cart } = await client.store.carts.$id.promotions.mutate({
  $id: "cart_01JB2KB1CD",
  promo_codes: ["SUMMER10"],
})

{
  "cart": {
    "id": "cart_01JB2KB1CD",
    "promotions": [
      {
        "id": "promo_01JB2KD5JK",
        "code": "SUMMER10",
        "is_automatic": false,
        "application_method": { "type": "percentage", "value": 10, "currency_code": "eur" }
      }
    ],
    "items": [
      {
        "id": "cali_01JB2KB3EF",
        "quantity": 1,
        "unit_price": 4500,
        "adjustments": [
          { "id": "caadj_01JB2KD6LM", "code": "SUMMER10", "promotion_id": "promo_01JB2KD5JK", "amount": 450 }
        ]
      }
    ],
    "discount_total": 450,
    "total": 4950
  }
}