gc-rest-api-delete-add-gift-card-example.txt

curl -X PUT https://somewherewarm.test/support/wp-json/wc/v3/orders/68 \
    -u consumer_key:consumer_secret \
    -H "Content-Type: application/json" \
    -d '{
        "gift_cards": [
        {
            "code": "KKKK-KKKK-KKKK-KKKK", 
            "amount": 0 // Deletes gift card, remaining order total becomes 70
        },
        {
            "code": "EEEE-EEEE-EEEE-EEEE", 
            "amount": 40 // Gift card is applied successfully
        }
    ]
}'