curl --request POST \
  --url https://api.artu.ai/custom-reference-data/sources \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Environment: <api-key>' \
  --data '
{
  "name": "<string>",
  "description": "<string>",
  "sourceType": "tabular",
  "externalId": "<string>"
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "<string>",
  "description": "<string>",
  "sourceType": "tabular",
  "columns": [
    {
      "source": "<string>",
      "alias": "<string>",
      "type": "<string>",
      "label": "<string>",
      "filterable": true,
      "sortable": true
    }
  ],
  "recordCount": 0,
  "currentSnapshotAt": "2023-11-07T05:31:56Z",
  "externalId": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z"
}