Add file to a matter

curl --request POST \
  --url https://api.smokeball.com/matters/{matterId}/documents/files \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json-patch+json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "fileName": "court filing.pdf",
  "folderId": "b471682e-fa17-4e46-b7fe-9b2b8fdcb3c2",
  "userId": "750eb5c5-ac0b-7d11-4997-e0ce9d8896c8",
  "folderPath": "Court Filings/2023/January",
  "fileAdditionalData": {},
  "dateCreated": "2023-04-23T14:00:00Z",
  "dateModified": "2023-04-24T14:00:00Z"
}'

{
  "fileId": "b471682e-fa17-4e46-b7fe-9b2b8fdcb3c2",
  "uploadUrl": "",
  "expiry": "2022-04-23T14:30:00Z"
}