curl --request POST \
  --url https://api.meetcampfire.com/rr/api/v1/transactions \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "tags": "<string>",
  "source": "<string>",
  "description": "<string>",
  "external_id": "<string>",
  "client_external_id": "<string>",
  "contract_external_id": "<string>",
  "contract_subscription_external_id": "<string>",
  "product_external_id": "<string>",
  "accounting_period": "2023-12-25",
  "transaction_date": "2023-12-25",
  "transaction_end_date": "2023-12-25",
  "currency": "<string>",
  "exchange_rate": 0,
  "exchange_rate_book": 0,
  "recognized": 0,
  "amount": 0,
  "quantity": 0,
  "rate": 123,
  "discount": 0,
  "refunds": 0,
  "processing_fees": 0,
  "platform_fees": 0,
  "transfers": 0,
  "tax": 0,
  "mrr": 0,
  "renewall": true,
  "entity": 123,
  "client": 123,
  "contract": 123,
  "contract_subscription": 123,
  "non_contract_subscription": 123,
  "product": 123,
  "contract_bundle": 123,
  "journal_entry": 123,
  "invoice": 123,
  "department": 123
}'

{
  "id": 123,
  "entity_name": "<string>",
  "entity_currency": "<string>",
  "client_name": "<string>",
  "contract_name": "<string>",
  "product_name": "<string>",
  "product_is_taxable": true,
  "contract_identifier": "<string>",
  "client_identifier": "<string>",
  "product_identifier": "<string>",
  "gross_amount": "<string>",
  "invoice_number": "<string>",
  "invoice_date": "<string>",
  "revenue_type": "<string>",
  "journal_entry_order": "<string>",
  "contract_subscription_notes": "<string>",
  "department_name": "<string>",
  "parent_department_name": "<string>",
  "parent_department": 123,
  "tags": "<string>",
  "source": "<string>",
  "description": "<string>",
  "external_id": "<string>",
  "client_external_id": "<string>",
  "contract_external_id": "<string>",
  "contract_subscription_external_id": "<string>",
  "product_external_id": "<string>",
  "accounting_period": "2023-12-25",
  "transaction_date": "2023-12-25",
  "transaction_end_date": "2023-12-25",
  "currency": "<string>",
  "exchange_rate": 0,
  "exchange_rate_book": 0,
  "recognized": 0,
  "amount": 0,
  "quantity": 0,
  "rate": 123,
  "discount": 0,
  "refunds": 0,
  "processing_fees": 0,
  "platform_fees": 0,
  "transfers": 0,
  "tax": 0,
  "mrr": 0,
  "renewall": true,
  "created_at": "2023-11-07T05:31:56Z",
  "last_modified_at": "2023-11-07T05:31:56Z",
  "customer": 123,
  "entity": 123,
  "client": 123,
  "contract": 123,
  "contract_subscription": 123,
  "non_contract_subscription": 123,
  "product": 123,
  "contract_bundle": 123,
  "journal_entry": 123,
  "invoice": 123,
  "department": 123
}