curl --request POST \
  --url https://api.maesn.dev/accounting/expenses \
  --header 'Content-Type: multipart/form-data' \
  --header 'X-ACCOUNT-KEY: <x-account-key>' \
  --header 'X-API-KEY: <x-api-key>' \
  --form 'files=[
  null
]' \
  --form 'expense={
  "accountId ": "6527a18d2-748e-4bda-9f4c-02b08a9622cd",
  "currency": "EUR",
  "customerId": "8a32de4f-55cc-4962-b000-a2a20662b821",
  "documentId": "c77fbedb-1ff3-4fed-8716-4d3e3fc85ccf",
  "exchangeRate": "1",
  "expenseLines": [
    {
      "accountId": "56dec6c2-b14c-43ea-87bb-cc67b0ba2545",
      "currency": "EUR",
      "description": "Gasoline for business trip",
      "documentNumber": "12345",
      "exchangeRate": "1",
      "itemId": "9fc4f3a2-5b8e-4d1b-8a0c-9f6e7d2f3e4b",
      "taxRate": {
        "id": "1895b05b-38a6-4a6a-9653-166389894350",
        "code": "03",
        "name": "Tax19",
        "taxRatePercentage": "19"
      },
      "totalGrossAmount": "119",
      "totalNetAmount": "100",
      "trackingCategories": [
        {
          "id": "efa82f42-fd85-11e1-a21f-0800200c9a33",
          "name": "Material/Waren"
        }
      ]
    }
  ],
  "journalCode": "60",
  "memo": "Gasoline for business trip",
  "paymentTermId": "d2f3e4b5-6a7b-8c9d-0e1f-2g3h4i5j6k7l",
  "paymentType": "CASH",
  "supplierId": "52c049b9-91b7-4828-b346-e1eeadfa31dd",
  "type": "EXPENSE",
  "totalGrossAmount": 119,
  "totalNetAmount": 100,
  "totalTaxAmount": 5,
  "transactionDate": "2021-01-01T00:00:00Z"
}'

{
  "meta": {
    "warnings": [
      "Field not used by target system"
    ],
    "pagination": {
      "total": 123,
      "perPage": 123,
      "currentPage": 123,
      "totalPages": 123
    }
  },
  "data": {
    "id": "9dea18d2-748e-4bda-9f4c-02b08a9622cd",
    "accountId ": "6527a18d2-748e-4bda-9f4c-02b08a9622cd",
    "createdDate": "2021-01-01T00:00:00Z",
    "currency": "EUR",
    "customerId": "8a32de4f-55cc-4962-b000-a2a20662b821",
    "documentId": "c77fbedb-1ff3-4fed-8716-4d3e3fc85ccf",
    "exchangeRate": "1",
    "expenseLines": [
      {
        "id": "b9dade6b-2b69-42c9-bcd4-841960f6cd9f",
        "accountId": "56dec6c2-b14c-43ea-87bb-cc67b0ba2545",
        "createdDate ": "2021-01-01T00:00:00Z",
        "currency": "EUR",
        "description": "Gasoline for business trip",
        "documentNumber": "12345",
        "exchangeRate": 1,
        "itemId": "9fc4f3a2-5b8e-4d1b-8a0c-9f6e7d2f3e4b",
        "taxRate": {
          "id": "1895b05b-38a6-4a6a-9653-166389894350",
          "code": "03",
          "name": "Tax19",
          "taxRatePercentage": "19"
        },
        "totalGrossAmount": "119",
        "totalNetAmount": "100",
        "trackingCategories": [
          {
            "id": "efa82f42-fd85-11e1-a21f-0800200c9a33",
            "name": "Material/Waren"
          }
        ],
        "updatedDate": "2021-01-01T00:00:00Z"
      }
    ],
    "files": [
      "file1.pdf"
    ],
    "journalCode": "60",
    "memo": "Gasoline for business trip",
    "paymentTermId": "d2f3e4b5-6a7b-8c9d-0e1f-2g3h4i5j6k7l",
    "paymentType": "CASH",
    "supplierId": "52c049b9-91b7-4828-b346-e1eeadfa31dd",
    "taskId ": "ADB4457839PXTC2220",
    "type": "EXPENSE",
    "totalGrossAmount": 119,
    "totalNetAmount": 100,
    "totalTaxAmount": 19,
    "transactionDate": "2021-01-01T00:00:00Z",
    "updatedDate": "2021-01-01T00:00:00Z"
  }
}