The form field name
The original filename from the client
Size of the file in bytes
OptionalfileFull path where the file was moved (if moved)
OptionalfileRelative filename after moving (if moved)
OptionaltypeMIME type of the file
OptionalextnameFile extension
OptionalsubtypeMIME subtype
Current state of the file processing
Whether the file passed all validations
Whether validations have been run
Array of validation errors, if any
Additional metadata associated with the file
JSON representation of a MultipartFile instance