discounts

Number of APIs: 3

1. Applying a discount to cart POST {{api-url}}/cart/{{tenant}}/carts/{{cartId}}/discounts

2. Removing all discounts from cart DELETE {{api-url}}/cart/{{tenant}}/carts/{{cartId}}/discounts

3. Removing a discount from cart DELETE {{api-url}}/cart/{{tenant}}/carts/{{cartId}}/discounts/{{discountId}}