curl --request POST \
--url https://api.steamgold.dev/v1/items \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"account": "<string>",
"additionalFields": {},
"email": "<string>",
"platform": "<string>",
"item": "<string>",
"code": "<string>",
"fee": "excluded",
"attribution": {
"utm_source": "<string>",
"utm_medium": "<string>"
},
"successUrl": "<string>",
"failureUrl": "<string>",
"callbackUrl": "<string>"
}'