gc-rest-api-apply-multiple-gift-cards-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": "ΧΧΧΧ-ΧΧΧΧ-ΧΧΧΧ-ΧΧΧΧ",
            "amount":30 // Remaining order total becomes $70
        },
        {
            "code": "ΚΚΚΚ-ΚΚΚΚ-ΚΚΚΚ-ΚΚΚΚ" // Has 60$ balance, can be applied
        }
    ]
}'