This Callback is fired whenever a Document is uploaded to a qualifying Transaction.

The callback will include the Order Identifier as well as the type of file that was uploaded.

{
    "event" : "new_document_uploaded",
    "timestamp" : 1619107424,
    "payload" :  {
        "order_id": "cbd2e6ed-9918-4aca-ac19-f7118bba0d4c",
        "document": {
            "id": 12561,
            "type": "Closing Disclosure",
            "name": "Closing Disclosure",
            "file_name": "1619470857test-document-upload.pdf",
            "download_url": "http://localhost:4125/storage/documents/transaction-shelf/12553/1619470857test-document-upload.pdf",
            "uploaded_at": "2021-01-31 00:00:00"
        },
    },
}