curl --location '/openapi/v1/tasks/t2i' \
--header 'X-Idempotency-Key;' \
--header 'x-api-key: {{api_key}}' \
--header 'Content-Type: application/json' \
--data '{
"input": {
"prompt": "复古花卉印花,适合 POD 印刷",
"productType": "general",
"ratio": "1:1",
"outputCount": 2
},
"callback_url": "https://client.example.com/pod/callback",
"metadata": {
"external_order_id": "order-20260601-0001"
}
}'