Get File Upload URL (Legacy)

curl --request POST \
  --url https://server26-dot-royalti-project.uc.r.appspot.com/file/getuUloadurl \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "royaltySource": "testsource",
  "accountingPeriod": "2017-05-01",
  "salePeriod": "2017-01-01",
  "fileMetaData": {
    "uploadType": "royalty",
    "originalname": "export.csv",
    "mimetype": "csv"
  }
}'

{
  "signedUrl": "https://storage.googleapis.com/royalti-uploads/royalty/file-uuid-123?signature=..."
}