Swift – Get file size from url

First of all, in the file system you get the path of a URL with the path property.

self.path = url.path

But you don’t need that at all. You can retrieve the file size from the URL directly:

self.path = String(describing: self.file!) // url to string

do {
    let resources = try url.resourceValues(forKeys:[.fileSizeKey])
    let fileSize = resources.fileSize!
    print ("\(fileSize)")
} catch {
    print("Error: \(error)")
}