curl --request POST \
  --url https://app.flowglad.com/api/v1/products \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "product": {
    "name": "<string>",
    "description": "<string>",
    "imageURL": "<string>",
    "active": true,
    "singularQuantityLabel": "<string>",
    "pluralQuantityLabel": "<string>",
    "pricingModelId": "<string>",
    "default": true,
    "slug": "<string>"
  },
  "price": {
    "intervalUnit": "day",
    "name": "<string>",
    "intervalCount": 123,
    "type": "<string>",
    "trialPeriodDays": 4503599627370495,
    "isDefault": true,
    "unitPrice": 4503599627370495,
    "usageEventsPerUnit": null,
    "active": true,
    "slug": "<string>",
    "usageMeterId": null
  },
  "featureIds": [
    "<string>"
  ]
}'

{
  "product": {
    "id": "<string>",
    "createdAt": 0,
    "updatedAt": 0,
    "livemode": true,
    "name": "<string>",
    "description": "<string>",
    "imageURL": "<string>",
    "organizationId": "<string>",
    "active": true,
    "singularQuantityLabel": "<string>",
    "pluralQuantityLabel": "<string>",
    "pricingModelId": "<string>",
    "default": true,
    "slug": "<string>"
  }
}