curl --request POST \
  --url https://api.glass.fm/vLatest/query/glasscore/invoice \
  --header 'Content-Type: application/json' \
  --data '{
  "advancedFilter": {
    "linkOperator": "AND",
    "items": [
      {
        "columnField": "nameFirst",
        "operatorValue": "contains",
        "value": "John"
      }
    ]
  },
  "return": [
    "id",
    "firstName",
    "lastName"
  ],
  "isAdditionalData": false,
  "page": 1,
  "pageSize": 20,
  "sortBy": "createdAt",
  "sortDirection": "desc"
}'

{
  "balance": 123,
  "c_org": "<string>",
  "date": "<string>",
  "dateDue": "<string>",
  "dropInvoice": "<string>",
  "id": "<string>",
  "label": "<string>",
  "lateFee": 123,
  "month": 123,
  "OrgId": 123,
  "year": 123
}