curl --request POST \
  --url 'https://api.stateset.com/api/v1/revenue-contracts' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "contract_number": null,
  "customer_id": "string",
  "effective_date": "string",
  "invoice_id": null,
  "obligations": [
    {
      "allocated_amount": "string",
      "description": "string",
      "end": null,
      "recognition_method": "string",
      "standalone_selling_price": null,
      "start": null
    }
  ],
  "order_id": null,
  "transaction_price": "string"
}'

{
  "contract_number": "string",
  "created_at": "string",
  "currency": "string",
  "customer_id": "string",
  "deferred_balance": "string",
  "effective_date": "string",
  "id": "string",
  "obligations": [
    {
      "allocated_amount": "string",
      "contract_id": "string",
      "deferred_amount": "string",
      "description": "string",
      "id": "string",
      "recognition_method": "string",
      "recognized_amount": "string"
    }
  ],
  "status": "string",
  "total_recognized": "string",
  "transaction_price": "string"
}