Contains information which is related to the selected file.

extension? string

The file extension including the leading dot—for example, .jpg, .png, or other.

httpSubscription? Subscription

The observable subscription of the upload request.

name string

The file name.

rawFile? File

An in-memory representation of the file.

size? number

The file size in bytes.

state? FileState

The current state of the file—Failed, Selected, Uploaded, or Uploading.
Initial is a special value for FileState.
It is automatically applied to initial files without you having to explicitly set their state.

uid? string

The unique identifier of the file or the batch of files.

validationErrors? Array<string>

A list containing the validation errors (if any).