name / subdomain / domain (first present wins) — onecurl --location --request PUT 'https://upload.tf/api/v1/upload' \
--header 'x-api-key: <api-key>' \
--form 'file=@""' \
--form 'name="mysite"' \
--form 'subdomain=""' \
--form 'domain=""' \
--form 'host=""'{
"success": true,
"data": {
"url": "https://mysite.upload.tf",
"slug": "mysite",
"hasHtml": true
}
}