How do I format the file upload payload when uploading documents?

The following is a curl example for uploadTradeDocument with the client ID, developer key, and trade ID:

curl --request POST  "https://api-sandboxdash.norcapsecurities.com/tapiv3/index.php/v3/uploadTradeDocument"

-F clientID=[ ] 

-F developerAPIKey=[ ] 

-F tradeId=[ ] 

-F documentTitle=documentTitle0=testdocument 

-F file_name=filename0=test.pdf -F createdIpAddress=10.0.0.59 

-F userfile0=@/Users/johnsmith/Downloads/Example.pdf