curl --request POST \
  --url https://api.maesn.dev/accounting/transactions \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-ACCOUNT-KEY: <x-account-key>' \
  --header 'X-API-KEY: <x-api-key>' \
  --form files=@example-file \
  --form 'transaction={
  "id": "f733a433-9662-4a40-8e36-e38ebda94fe1",
  "accountId": "14a6b5e92-a261-4be9-814d-84dec9636c16",
  "accountNumber": 4900,
  "amount": 100,
  "bookingDate": "2025-07-15T00:00:00Z",
  "contact": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
  "currency": "EUR",
  "description": "Hotel for dreamforce",
  "journalCode": "31",
  "ledgerName": "Payroll",
  "reference": "RCXF197253F",
  "status": "CREATED",
  "taxRatePercentage": 19,
  "type": "SPEND",
  "valueDate": "2025-07-15T00:00:00Z"
}'

{
  "meta": {
    "warnings": [
      "Field not used by target system"
    ],
    "pagination": {
      "total": 123,
      "perPage": 123,
      "currentPage": 123,
      "totalPages": 123
    }
  },
  "data": {
    "id": "f733a433-9662-4a40-8e36-e38ebda94fe1",
    "accountId": "14a6b5e92-a261-4be9-814d-84dec9636c16",
    "accountNumber": 4900,
    "amount": 100,
    "bookingDate": "2025-07-15T00:00:00Z",
    "contact": "eaa28f49-6028-4b6e-bb12-d8f6278073fc",
    "currency": "EUR",
    "description": "Hotel for dreamforce",
    "files": [
      "file1.pdf"
    ],
    "journalCode": "31",
    "ledgerName": "Payroll",
    "reference": "RCXF197253F",
    "status": "CREATED",
    "taskId": "ADB4457839PXTC2220",
    "taxRatePercentage": 19,
    "type": "SPEND",
    "valueDate": "2025-07-15T00:00:00Z"
  }
}